1
|
Wang H, Qin L, Feng C, Wu M, Zhong H, Liu J, Wu Q, Que Y. Pathogen resistance was negatively regulated by the NAC transcription factor ScATAF1 in sugarcane. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 213:108828. [PMID: 38896914 DOI: 10.1016/j.plaphy.2024.108828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 05/15/2024] [Accepted: 06/10/2024] [Indexed: 06/21/2024]
Abstract
The NAC (NAM, ATAF, and CUC) is one of the largest transcription factor gene families in plants. In this study, 180, 141, and 131 NAC family members were identified from Saccharum complex, including S. officinarum, S. spontaneum, and Erianthus rufipilus. The Ka/Ks ratio of ATAF subfamily was all less than 1. Besides, 52 ATAF members from 12 representative plants were divided into three clades and there was only a significant expansion in maize. Surprisingly, ABA and JA cis-elements were abundant in hormonal response factor, followed by transcriptional regulator and abiotic stressor. The ATAF subfamily was differentially expressed in various tissues, under low temperature and smut pathogen treatments. Further, the ScATAF1 gene, with high expression in leaves, stem epidermis, and buds, was isolated. The encoded protein, lack of self-activation activity, was situated in the cell nucleus. Moreover, SA and JA stresses down-regulated the expression of this gene, while ABA, NaCl, and 4°C treatments led to its up-regulation. Interestingly, its expression in the smut susceptible sugarcane cultivars was much higher than the smut resistant ones. Notably, the colors presented slight brown in tobacco transiently overexpressing ScATAF1 at 1 d after DAB staining, while the symptoms were more obvious at 3 d after inoculation with Ralstonia solanacearum, with ROS, JA, and SA signaling pathway genes significantly up-regulated. We thus speculated ScATAF1 gene could negatively mediate hypersensitive reactions and produce ROS by JA and SA signaling pathways. These findings lay the groundwork for in-depth investigation on the biological roles of ATAF subfamily in sugarcane.
Collapse
Affiliation(s)
- Hengbo Wang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Instrumental Analysis Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China; National Key Laboratory for Tropical Crop Breeding, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Sanya, Haikou, 572024/571101, Hainan, China
| | - Liqian Qin
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Instrumental Analysis Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Chunyan Feng
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Instrumental Analysis Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Mingxing Wu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Instrumental Analysis Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Hui Zhong
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Instrumental Analysis Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Junhong Liu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Instrumental Analysis Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Qibin Wu
- National Key Laboratory for Tropical Crop Breeding, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Sanya, Haikou, 572024/571101, Hainan, China
| | - Youxiong Que
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Instrumental Analysis Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China; National Key Laboratory for Tropical Crop Breeding, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Sanya, Haikou, 572024/571101, Hainan, China.
| |
Collapse
|
2
|
Healey AL, Garsmeur O, Lovell JT, Shengquiang S, Sreedasyam A, Jenkins J, Plott CB, Piperidis N, Pompidor N, Llaca V, Metcalfe CJ, Doležel J, Cápal P, Carlson JW, Hoarau JY, Hervouet C, Zini C, Dievart A, Lipzen A, Williams M, Boston LB, Webber J, Keymanesh K, Tejomurthula S, Rajasekar S, Suchecki R, Furtado A, May G, Parakkal P, Simmons BA, Barry K, Henry RJ, Grimwood J, Aitken KS, Schmutz J, D'Hont A. The complex polyploid genome architecture of sugarcane. Nature 2024; 628:804-810. [PMID: 38538783 PMCID: PMC11041754 DOI: 10.1038/s41586-024-07231-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 02/23/2024] [Indexed: 04/06/2024]
Abstract
Sugarcane, the world's most harvested crop by tonnage, has shaped global history, trade and geopolitics, and is currently responsible for 80% of sugar production worldwide1. While traditional sugarcane breeding methods have effectively generated cultivars adapted to new environments and pathogens, sugar yield improvements have recently plateaued2. The cessation of yield gains may be due to limited genetic diversity within breeding populations, long breeding cycles and the complexity of its genome, the latter preventing breeders from taking advantage of the recent explosion of whole-genome sequencing that has benefited many other crops. Thus, modern sugarcane hybrids are the last remaining major crop without a reference-quality genome. Here we take a major step towards advancing sugarcane biotechnology by generating a polyploid reference genome for R570, a typical modern cultivar derived from interspecific hybridization between the domesticated species (Saccharum officinarum) and the wild species (Saccharum spontaneum). In contrast to the existing single haplotype ('monoploid') representation of R570, our 8.7 billion base assembly contains a complete representation of unique DNA sequences across the approximately 12 chromosome copies in this polyploid genome. Using this highly contiguous genome assembly, we filled a previously unsized gap within an R570 physical genetic map to describe the likely causal genes underlying the single-copy Bru1 brown rust resistance locus. This polyploid genome assembly with fine-grain descriptions of genome architecture and molecular targets for biotechnology will help accelerate molecular and transgenic breeding and adaptation of sugarcane to future environmental conditions.
Collapse
Affiliation(s)
- A L Healey
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA.
| | - O Garsmeur
- CIRAD, UMR AGAP Institut, Montpellier, France
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - J T Lovell
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - S Shengquiang
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - A Sreedasyam
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - J Jenkins
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - C B Plott
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - N Piperidis
- Sugar Research Australia, Te Kowai, Queensland, Australia
| | - N Pompidor
- CIRAD, UMR AGAP Institut, Montpellier, France
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - V Llaca
- Corteva Agriscience, Johnston, IA, USA
| | - C J Metcalfe
- CSIRO Agriculture and Food, Queensland Bioscience Precinct, St Lucia, Queensland, Australia
| | - J Doležel
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of Plant Structural and Functional Genomics, Olomouc, Czech Republic
| | - P Cápal
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of Plant Structural and Functional Genomics, Olomouc, Czech Republic
| | - J W Carlson
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - J Y Hoarau
- CIRAD, UMR AGAP Institut, Montpellier, France
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
- ERCANE, Sainte-Clotilde, La Réunion, France
| | - C Hervouet
- CIRAD, UMR AGAP Institut, Montpellier, France
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - C Zini
- CIRAD, UMR AGAP Institut, Montpellier, France
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - A Dievart
- CIRAD, UMR AGAP Institut, Montpellier, France
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - A Lipzen
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - M Williams
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - L B Boston
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - J Webber
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - K Keymanesh
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - S Tejomurthula
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - S Rajasekar
- Arizona Genomics Institute, University of Arizona, Tucson, AZ, USA
| | - R Suchecki
- CSIRO Agriculture and Food, Urrbrae, South Australia, Australia
| | - A Furtado
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, Queensland, Australia
| | - G May
- Corteva Agriscience, Johnston, IA, USA
| | | | - B A Simmons
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, Queensland, Australia
- Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Emeryville, CA, USA
| | - K Barry
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - R J Henry
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, Queensland, Australia
- ARC Centre of Excellence for Plant Success in Nature and Agriculture, University of Queensland, Brisbane, Queensland, Australia
| | - J Grimwood
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - K S Aitken
- CSIRO Agriculture and Food, Queensland Bioscience Precinct, St Lucia, Queensland, Australia
| | - J Schmutz
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA.
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
| | - A D'Hont
- CIRAD, UMR AGAP Institut, Montpellier, France.
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France.
| |
Collapse
|
3
|
Miller S, Rønager A, Holm R, Fontanet-Manzaneque JB, Caño-Delgado AI, Bjarnholt N. New methods for sorghum transformation in temperate climates. AOB PLANTS 2023; 15:plad030. [PMID: 37396498 PMCID: PMC10308921 DOI: 10.1093/aobpla/plad030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 06/02/2023] [Indexed: 07/04/2023]
Abstract
Sorghum (Sorghum bicolor) is an emerging cereal crop in temperate climates due to its high drought tolerance and other valuable traits. Genetic transformation is an important tool for the improvement of cereals. However, sorghum is recalcitrant to genetic transformation which is almost only successful in warmer climates. Here, we test the application of two new techniques for sorghum transformation in temperate climates, namely transient transformation by Agrobacterium tumefaciens-mediated agroinfiltration and stable transformation using gold particle bombardment and leaf whorls as explants. We optimized the transient transformation method, including post-infiltration incubation of plants in the dark and using Agrobacterium grown on plates with a high cell density (OD600 = 2.0). Expression of the green fluorescence protein (GFP)-tagged endogenous sorghum gene SbDHR2 was achieved with low transformation efficiency, and our results point out a potential weakness in using this approach for localization studies. Furthermore, we succeeded in the production of callus and somatic embryos from leaf whorls, although no genetic transformation was accomplished with this method. Both methods show potential, even if they seem to be influenced by climatic conditions and therefore need further optimization to be applied routinely in temperate climates.
Collapse
Affiliation(s)
- Sara Miller
- Section for Plant Biochemistry, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksbergs, Denmark
- Copenhagen Plant Science Center, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark
| | - Asta Rønager
- Section for Plant Biochemistry, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksbergs, Denmark
- Copenhagen Plant Science Center, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark
| | - Rose Holm
- Section for Plant Biochemistry, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksbergs, Denmark
- Copenhagen Plant Science Center, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark
| | - Juan B Fontanet-Manzaneque
- Department of Molecular Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB (Cerdanyola del Vallès), 08193 Barcelona, Spain
| | - Ana I Caño-Delgado
- Department of Molecular Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB (Cerdanyola del Vallès), 08193 Barcelona, Spain
| | | |
Collapse
|
4
|
Meng Z, Wang F, Xie Q, Li R, Shen H, Li H. Reconstruction of karyotypic evolution in Saccharum spontaneum species by comparative oligo-FISH mapping. BMC PLANT BIOLOGY 2022; 22:599. [PMID: 36539690 PMCID: PMC9764494 DOI: 10.1186/s12870-022-04008-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Karyotype dynamics driven by chromosomal rearrangements has long been considered as a fundamental question in the evolutionary genetics. Saccharum spontaneum, the most primitive and complex species in the genus Saccharum, has reportedly undergone at least two major chromosomal rearrangements, however, its karyotypic evolution remains unclear. RESULTS In this study, four representative accessions, i.e., hypothetical diploid sugarcane ancestor (sorghum, x = 10), Sa. spontaneum Np-X (x = 10, tetraploid), 2012-46 (x = 9, hexaploid) and AP85-441 (x = 8, tetraploid), were selected for karyotype evolution studies. A set of oligonucleotide (oligo)-based barcode probes was developed based on the sorghum genome, which allowed universal identification of all chromosomes from sorghum and Sa. spontaneum. By comparative FISH assays, we reconstructed the karyotype evolutionary history and discovered that although chromosomal rearrangements resulted in greater variation in relative lengths of some chromosomes, all chromosomes maintained a conserved metacentric structure. Additionally, we found that the barcode oligo probe was not applicable for chromosome identification in both Sa. robustum and Sa. officinarum species, suggesting that sorghum is more distantly related to Sa. robustum and Sa. officinarum compared with Sa. spontaneum species. CONCLUSIONS Our study demonstrated that the barcode oligo-FISH is an efficient tool for chromosome identification and karyotyping research, and expanded our understanding of the karyotypic and chromosomal evolution in the genus Saccharum.
Collapse
Affiliation(s)
- Zhuang Meng
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, 832003, China.
| | - Fei Wang
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, 832003, China
| | - Quanliang Xie
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, 832003, China
| | - Rong Li
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, 832003, China
| | - Haitao Shen
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, 832003, China
| | - Hongbin Li
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Key Laboratory of Oasis Town and Mountain-basin System Ecology of Xinjiang Production and Construction Corps, College of Life Sciences, Shihezi University, Shihezi, 832003, China.
| |
Collapse
|
5
|
Dinesh Babu KS, Janakiraman V, Palaniswamy H, Kasirajan L, Gomathi R, Ramkumar TR. A short review on sugarcane: its domestication, molecular manipulations and future perspectives. GENETIC RESOURCES AND CROP EVOLUTION 2022; 69:2623-2643. [PMID: 36159774 PMCID: PMC9483297 DOI: 10.1007/s10722-022-01430-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 06/11/2022] [Indexed: 06/16/2023]
Abstract
Sugarcane (Saccharum spp.) is a special crop plant that underwent anthropogenic evolution from a wild grass species to an important food, fodder, and energy crop. Unlike any other grass species which were selected for their kernels, sugarcane was selected for its high stem sucrose accumulation. Flowering in sugarcane is not favored since flowering diverts the stored sugar resources for the reproductive and developmental energy needs. Cultivars are vegetatively propagated and sugarcane breeding is still essentially focused on conventional methods, since the knowledge of sugarcane genetics has lagged that of other major crops. Cultivar improvement has been extremely challenging due to its polyploidy and aneuploidy nature derived from a few interspecific hybridizations between Saccharum officinarum and Saccharum spontaneum, revealing the coexistence of two distinct genome organization modes in the modern variety. Alongside implementation of modern agricultural techniques, generation of hybrid clones, transgenics and genome edited events will help to meet the ever-growing bioenergy needs. Additionally, there are two common biotechnological approaches to improve plant stress tolerance, which includes marker-assisted selection (MAS) and genetic transformation. During the past two decades, the use of molecular approaches has contributed greatly to a better understanding of the genetic and biochemical basis of plant stress-tolerance and in some cases, it led to the development of plants with enhanced tolerance to abiotic stress. Hence, this review mainly intends on the events that shaped the sugarcane as what it is now and what challenges ahead and measures taken to further improve its yield, production and maximize utilization to beat the growing demands.
Collapse
Affiliation(s)
| | - Vardhana Janakiraman
- Department of Biotechnology, Vels Institute of Science, Technology & Advanced studies (VISTAS), Chennai, TN 600117 India
| | - Harunipriya Palaniswamy
- Tissue Culture Laboratory, Division of Crop Improvement, ICAR‐Sugarcane Breeding Institute, Coimbatore, TN 641007 India
| | - Lakshmi Kasirajan
- Genomics Laboratory, Division of Crop Improvement, ICAR‐Sugarcane Breeding Institute, Coimbatore, TN 641007 India
| | - Raju Gomathi
- Plant Physiology Laboratory, Division of Crop Production, ICAR‐Sugarcane Breeding Institute, Coimbatore, TN 641007 India
| | - Thakku R. Ramkumar
- Agronomy Department, IFAS, University of Florida, Gainesville, FL 32611 USA
- Department of Biological Sciences, Delaware State University, Dover, DE 19001 USA
| |
Collapse
|
6
|
Senthilkumar S, Vinod KK, Parthiban S, Thirugnanasambandam P, Lakshmi Pathy T, Banerjee N, Sarath Padmanabhan TS, Govindaraj P. Identification of potential MTAs and candidate genes for juice quality- and yield-related traits in Saccharum clones: a genome-wide association and comparative genomic study. Mol Genet Genomics 2022; 297:635-654. [PMID: 35257240 DOI: 10.1007/s00438-022-01870-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 02/06/2022] [Indexed: 11/30/2022]
Abstract
Sugarcane is an economically important commercial crop which provides raw material for the production of sugar, jaggery, bioethanol, biomass and other by-products. Sugarcane breeding till today heavily relies on conventional breeding approaches which is time consuming, laborious and costly. Integration of marker-assisted selection (MAS) in sugarcane genetic improvement programs for difficult to select traits like sucrose content, resistance to pests and diseases and tolerance to abiotic stresses will accelerate varietal development. In the present study, association mapping approach was used to identify QTLs and genes associated with sucrose and other important yield-contributing traits. A mapping panel of 110 diverse sugarcane genotypes and 148 microsatellite primers were used for structured association mapping study. An optimal subpopulation number (ΔK) of 5 was identified by structure analysis. GWAS analysis using TASSEL identified a total of 110 MTAs which were localized into 27 QTLs by GLM and MLM (Q + K, PC + K) approaches. Among the 24 QTLs sequenced, 12 were able to identify potential candidate genes, viz., starch branching enzyme, starch synthase 4, sugar transporters and G3P-DH related to carbohydrate metabolism and hormone pathway-related genes ethylene insensitive 3-like 1, reversion to ethylene sensitive1-like, and auxin response factor associated to juice quality- and yield-related traits. Six markers, NKS 5_185, SCB 270_144, SCB 370_256, NKS 46_176 and UGSM 648_245, associated with juice quality traits and marker SMC31CUQ_304 associated with NMC were validated and identified as significantly associated to the traits by one-way ANOVA analysis. In conclusion, 24 potential QTLs identified in the present study could be used in sugarcane breeding programs after further validation in larger population. The candidate genes from carbohydrate and hormone response pathway presented in this study could be manipulated with genome editing approaches to further improve sugarcane crop.
Collapse
Affiliation(s)
- Shanmugavel Senthilkumar
- Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore, Tamil Nadu, 641007, India
| | - K K Vinod
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Selvaraj Parthiban
- Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore, Tamil Nadu, 641007, India
| | | | - Thalambedu Lakshmi Pathy
- Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore, Tamil Nadu, 641007, India
| | - Nandita Banerjee
- Division of Crop Improvement, ICAR-Indian Institute of Sugarcane Research, Lucknow, Uttar Pradesh, 226002, India
| | | | - P Govindaraj
- Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore, Tamil Nadu, 641007, India.
| |
Collapse
|
7
|
Zenda T, Liu S, Dong A, Duan H. Advances in Cereal Crop Genomics for Resilience under Climate Change. Life (Basel) 2021; 11:502. [PMID: 34072447 PMCID: PMC8228855 DOI: 10.3390/life11060502] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 12/12/2022] Open
Abstract
Adapting to climate change, providing sufficient human food and nutritional needs, and securing sufficient energy supplies will call for a radical transformation from the current conventional adaptation approaches to more broad-based and transformative alternatives. This entails diversifying the agricultural system and boosting productivity of major cereal crops through development of climate-resilient cultivars that can sustainably maintain higher yields under climate change conditions, expanding our focus to crop wild relatives, and better exploitation of underutilized crop species. This is facilitated by the recent developments in plant genomics, such as advances in genome sequencing, assembly, and annotation, as well as gene editing technologies, which have increased the availability of high-quality reference genomes for various model and non-model plant species. This has necessitated genomics-assisted breeding of crops, including underutilized species, consequently broadening genetic variation of the available germplasm; improving the discovery of novel alleles controlling important agronomic traits; and enhancing creation of new crop cultivars with improved tolerance to biotic and abiotic stresses and superior nutritive quality. Here, therefore, we summarize these recent developments in plant genomics and their application, with particular reference to cereal crops (including underutilized species). Particularly, we discuss genome sequencing approaches, quantitative trait loci (QTL) mapping and genome-wide association (GWAS) studies, directed mutagenesis, plant non-coding RNAs, precise gene editing technologies such as CRISPR-Cas9, and complementation of crop genotyping by crop phenotyping. We then conclude by providing an outlook that, as we step into the future, high-throughput phenotyping, pan-genomics, transposable elements analysis, and machine learning hold much promise for crop improvements related to climate resilience and nutritional superiority.
Collapse
Affiliation(s)
- Tinashe Zenda
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (S.L.); (A.D.)
- North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, Hebei Agricultural University, Baoding 071001, China
- Department of Crop Genetics and Breeding, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
- Department of Crop Science, Faculty of Agriculture and Environmental Science, Bindura University of Science Education, Bindura P. Bag 1020, Zimbabwe
| | - Songtao Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (S.L.); (A.D.)
- North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, Hebei Agricultural University, Baoding 071001, China
- Department of Crop Genetics and Breeding, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Anyi Dong
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (S.L.); (A.D.)
- North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, Hebei Agricultural University, Baoding 071001, China
- Department of Crop Genetics and Breeding, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Huijun Duan
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (S.L.); (A.D.)
- North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, Hebei Agricultural University, Baoding 071001, China
- Department of Crop Genetics and Breeding, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| |
Collapse
|
8
|
Pompidor N, Charron C, Hervouet C, Bocs S, Droc G, Rivallan R, Manez A, Mitros T, Swaminathan K, Glaszmann JC, Garsmeur O, D’Hont A. Three founding ancestral genomes involved in the origin of sugarcane. ANNALS OF BOTANY 2021; 127:827-840. [PMID: 33637991 PMCID: PMC8103802 DOI: 10.1093/aob/mcab008] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 02/25/2021] [Indexed: 05/11/2023]
Abstract
BACKGROUND AND AIMS Modern sugarcane cultivars (Saccharum spp.) are high polyploids, aneuploids (2n = ~12x = ~120) derived from interspecific hybridizations between the domesticated sweet species Saccharum officinarum and the wild species S. spontaneum. METHODS To analyse the architecture and origin of such a complex genome, we analysed the sequences of all 12 hom(oe)ologous haplotypes (BAC clones) from two distinct genomic regions of a typical modern cultivar, as well as the corresponding sequence in Miscanthus sinense and Sorghum bicolor, and monitored their distribution among representatives of the Saccharum genus. KEY RESULTS The diversity observed among haplotypes suggested the existence of three founding genomes (A, B, C) in modern cultivars, which diverged between 0.8 and 1.3 Mya. Two genomes (A, B) were contributed by S. officinarum; these were also found in its wild presumed ancestor S. robustum, and one genome (C) was contributed by S. spontaneum. These results suggest that S. officinarum and S. robustum are derived from interspecific hybridization between two unknown ancestors (A and B genomes). The A genome contributed most haplotypes (nine or ten) while the B and C genomes contributed one or two haplotypes in the regions analysed of this typical modern cultivar. Interspecific hybridizations likely involved accessions or gametes with distinct ploidy levels and/or were followed by a series of backcrosses with the A genome. The three founding genomes were found in all S. barberi, S. sinense and modern cultivars analysed. None of the analysed accessions contained only the A genome or the B genome, suggesting that representatives of these founding genomes remain to be discovered. CONCLUSIONS This evolutionary model, which combines interspecificity and high polyploidy, can explain the variable chromosome pairing affinity observed in Saccharum. It represents a major revision of the understanding of Saccharum diversity.
Collapse
Affiliation(s)
- Nicolas Pompidor
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Carine Charron
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Catherine Hervouet
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Stéphanie Bocs
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Gaëtan Droc
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Ronan Rivallan
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Aurore Manez
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Therese Mitros
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | | | - Jean-Christophe Glaszmann
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Olivier Garsmeur
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Angélique D’Hont
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
- For correspondence. E-mail
| |
Collapse
|
9
|
Hostetler AN, Khangura RS, Dilkes BP, Sparks EE. Bracing for sustainable agriculture: the development and function of brace roots in members of Poaceae. CURRENT OPINION IN PLANT BIOLOGY 2021; 59:101985. [PMID: 33418403 DOI: 10.1016/j.pbi.2020.101985] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 11/23/2020] [Accepted: 12/02/2020] [Indexed: 05/28/2023]
Abstract
Optimization of crop production requires root systems to function in water uptake, nutrient use, and anchorage. In maize, two types of nodal roots-subterranean crown and aerial brace roots function in anchorage and water uptake and preferentially express multiple water and nutrient transporters. Brace root development shares genetic control with juvenile-to-adult phase change and flowering time. We present a comprehensive list of the genes known to alter brace roots and explore these as candidates for QTL studies in maize and sorghum. Brace root development and function may be conserved in other members of Poaceae, however research is limited. This work highlights the critical knowledge gap of aerial nodal root development and function and suggests new focus areas for breeding resilient crops.
Collapse
Affiliation(s)
- Ashley N Hostetler
- Department of Plant and Soil Sciences and the Delaware Biotechnology Institute, University of Delaware, Newark, DE, 19711, United States
| | - Rajdeep S Khangura
- Department of Biochemistry, Purdue University, West Lafayette, IN, 47907, United States
| | - Brian P Dilkes
- Department of Biochemistry, Purdue University, West Lafayette, IN, 47907, United States
| | - Erin E Sparks
- Department of Plant and Soil Sciences and the Delaware Biotechnology Institute, University of Delaware, Newark, DE, 19711, United States.
| |
Collapse
|
10
|
Piperidis N, D'Hont A. Sugarcane genome architecture decrypted with chromosome-specific oligo probes. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 103:2039-2051. [PMID: 32537783 DOI: 10.1111/tpj.14881] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/28/2020] [Accepted: 06/02/2020] [Indexed: 05/04/2023]
Abstract
Sugarcane (Saccharum spp.) is probably the crop with the most complex genome. Modern cultivars (2n = 100-120) are highly polyploids and aneuploids derived from interspecific hybridization between Saccharum officinarum (2n = 80) and Saccharum spontaneum (2n = 40-128). Chromosome-specific oligonucleotide probes were used in combination with genomic in situ hybridization to analyze the genome architecture of modern cultivars and representatives of their parental species. The results validated a basic chromosome number of x = 10 for S. officinarum. In S. spontaneum, rearrangements occurred from a basic chromosome of x = 10, probably in the Northern part of India, in two steps leading to x = 9 and then x = 8. Each step involved three chromosomes that were rearranged into two. Further polyploidization led to the wide geographical extension of clones with x = 8. We showed that the S. spontaneum contribution to modern cultivars originated from cytotypes with x = 8 and varied in proportion between cultivars (13-20%). Modern cultivars had mainly 12 copies for each of the first four basic chromosomes, and a more variable number for those basic chromosomes whose structure differs between the two parental species. One-four of these copies corresponded to entire S. spontaneum chromosomes or interspecific recombinant chromosomes. In addition, a few inter-chromosome translocations were revealed. The new information and cytogenetic tools described in this study substantially improve our understanding of the extreme level of complexity of modern sugarcane cultivar genomes.
Collapse
Affiliation(s)
- Nathalie Piperidis
- SRA, Sugar Research Australia, 26135 Peak Downs Highway, Te Kowai, Qld, 4741, Australia
| | - Angélique D'Hont
- CIRAD, UMR AGAP, Montpellier, F-34398, France
- AGAP, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, 34060, France
| |
Collapse
|
11
|
Meng Z, Han J, Lin Y, Zhao Y, Lin Q, Ma X, Wang J, Zhang M, Zhang L, Yang Q, Wang K. Characterization of a Saccharum spontaneum with a basic chromosome number of x = 10 provides new insights on genome evolution in genus Saccharum. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:187-199. [PMID: 31587087 DOI: 10.1007/s00122-019-03450-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 09/24/2019] [Indexed: 05/04/2023]
Abstract
A novel tetraploid S. spontaneum with basic chromosome x = 10 was discovered, providing us insights in the origin and evolution in Saccharum species. Sugarcane (Saccharum spp., Poaceae) is a leading crop for sugar production providing 80% of the world's sugar. However, the genetic and genomic complexities of this crop such as its high polyploidy level and highly variable chromosome numbers have significantly hindered the studies in deciphering the genomic structure and evolution of sugarcane. Here, we developed the first set of oligonucleotide (oligo)-based probes based on the S. spontaneum genome (x = 8), which can be used to simultaneously distinguish each of the 64 chromosomes of octaploid S. spontaneum SES208 (2n = 8x = 64) through fluorescence in situ hybridization (FISH). By comparative FISH assay, we confirmed the chromosomal rearrangements of S. spontaneum (x = 8) and S. officinarum (2n = 8x = 80), the main contributors of modern sugarcane cultivars. In addition, we examined a S. spontaneum accession, Np-X, with 2n = 40 chromosomes, and we found that it was a tetraploid with the unusual basic chromosome number of x = 10. Assays at the cytological and DNA levels demonstrated its close relationship with S. spontaneum with basic chromosome number x = 8 (the most common accessions in S. spontaneum), confirming its S. spontaneum identity. Population genetic structure and phylogenetic relationship analyses between Np-X and 64 S. spontaneum accessions revealed that Np-X belongs to the ancient Pan-Malaysia group, indicating a close relationship to S. spontaneum with basic chromosome number of x = 8. This finding of a tetraploid S. spontaneum with basic chromosome number of x = 10 suggested a parallel evolution path of genomes and polyploid series in S. spontaneum with different basic chromosome numbers.
Collapse
Affiliation(s)
- Zhuang Meng
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Corps, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Jinlei Han
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Corps, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Yujing Lin
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Corps, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Yiyong Zhao
- State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Biodiversity Sciences and Ecological Engineering, Institute of Plant Biology, Institute of Biodiversity Sciences, School of Life Sciences, Fudan University, Shanghai, China
| | - Qingfang Lin
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Corps, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Xiaokai Ma
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Corps, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Jianping Wang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Corps, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Department of Agronomy, University of Florida, Gainesville, FL, 32611, USA
| | - Muqing Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Lab for Sugarcane Biology, Guangxi University, Nanning, Guangxi, China
| | - Liangsheng Zhang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Corps, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Qinghui Yang
- Sugarcane Research Institution, Yunnan Agricultural University, Kunming, Yunnan, China.
| | - Kai Wang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Corps, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China.
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Lab for Sugarcane Biology, Guangxi University, Nanning, Guangxi, China.
| |
Collapse
|
12
|
Sforça DA, Vautrin S, Cardoso-Silva CB, Mancini MC, Romero-da Cruz MV, Pereira GDS, Conte M, Bellec A, Dahmer N, Fourment J, Rodde N, Van Sluys MA, Vicentini R, Garcia AAF, Forni-Martins ER, Carneiro MS, Hoffmann HP, Pinto LR, Landell MGDA, Vincentz M, Berges H, de Souza AP. Gene Duplication in the Sugarcane Genome: A Case Study of Allele Interactions and Evolutionary Patterns in Two Genic Regions. FRONTIERS IN PLANT SCIENCE 2019; 10:553. [PMID: 31134109 PMCID: PMC6514446 DOI: 10.3389/fpls.2019.00553] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 04/11/2019] [Indexed: 05/25/2023]
Abstract
Sugarcane (Saccharum spp.) is highly polyploid and aneuploid. Modern cultivars are derived from hybridization between S. officinarum and S. spontaneum. This combination results in a genome exhibiting variable ploidy among different loci, a huge genome size (~10 Gb) and a high content of repetitive regions. An approach using genomic, transcriptomic, and genetic mapping can improve our knowledge of the behavior of genetics in sugarcane. The hypothetical HP600 and Centromere Protein C (CENP-C) genes from sugarcane were used to elucidate the allelic expression and genomic and genetic behaviors of this complex polyploid. The physically linked side-by-side genes HP600 and CENP-C were found in two different homeologous chromosome groups with ploidies of eight and ten. The first region (Region01) was a Sorghum bicolor ortholog region with all haplotypes of HP600 and CENP-C expressed, but HP600 exhibited an unbalanced haplotype expression. The second region (Region02) was a scrambled sugarcane sequence formed from different noncollinear genes containing partial duplications of HP600 and CENP-C (paralogs). This duplication resulted in a non-expressed HP600 pseudogene and a recombined fusion version of CENP-C and the orthologous gene Sobic.003G299500 with at least two chimeric gene haplotypes expressed. It was also determined that it occurred before Saccharum genus formation and after the separation of sorghum and sugarcane. A linkage map was constructed using markers from nonduplicated Region01 and for the duplication (Region01 and Region02). We compare the physical and linkage maps, demonstrating the possibility of mapping markers located in duplicated regions with markers in nonduplicated region. Our results contribute directly to the improvement of linkage mapping in complex polyploids and improve the integration of physical and genetic data for sugarcane breeding programs. Thus, we describe the complexity involved in sugarcane genetics and genomics and allelic dynamics, which can be useful for understanding complex polyploid genomes.
Collapse
Affiliation(s)
| | - Sonia Vautrin
- Centre National de Ressources Genomiques Vegetales (CNRGV), Institut National de la Recherche Agronomique (INRA), Castanet Tolosan, France
| | | | | | | | | | - Mônica Conte
- Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Arnaud Bellec
- Centre National de Ressources Genomiques Vegetales (CNRGV), Institut National de la Recherche Agronomique (INRA), Castanet Tolosan, France
| | - Nair Dahmer
- Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Joelle Fourment
- Centre National de Ressources Genomiques Vegetales (CNRGV), Institut National de la Recherche Agronomique (INRA), Castanet Tolosan, France
| | - Nathalie Rodde
- Centre National de Ressources Genomiques Vegetales (CNRGV), Institut National de la Recherche Agronomique (INRA), Castanet Tolosan, France
| | | | | | | | | | | | - Hermann Paulo Hoffmann
- Centro de Ciências Agrárias, Universidade Federal de São Carlos (UFSCAR), Araras, Brazil
| | | | | | - Michel Vincentz
- Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Helene Berges
- Centre National de Ressources Genomiques Vegetales (CNRGV), Institut National de la Recherche Agronomique (INRA), Castanet Tolosan, France
| | | |
Collapse
|
13
|
Yang S, Zeng K, Chen K, Wu J, Wang Q, Li X, Deng Z, Huang Y, Huang F, Chen R, Zhang M. Chromosome transmission in BC 4 progenies of intergeneric hybrids between Saccharum spp. and Erianthus arundinaceus (Retz.) Jeswiet. Sci Rep 2019; 9:2528. [PMID: 30792411 PMCID: PMC6385618 DOI: 10.1038/s41598-019-38710-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 01/07/2019] [Indexed: 12/15/2022] Open
Abstract
Intergeneric hybrids between Saccharum spp. and Erianthus arundinaceus and clones derived from these hybrids and backcrosses to Saccharum spp. were used to study the transmission of E. arundinaceus chromosomes by genomic in situ hybridization (GISH). True hybrid progenies were precisely identified using PCR with a primer pair, AGRP52/53. The results showed that AGRP52/53 was an E. arundinaceus-specific primer pair and could be used as molecular marker to assist breeding. EaHN92, a 364 bp E. arundinaceus-specific tandem repeat satellite DNA sequence, was cloned from the E. arundinaceus clone HN92-105 with AGRP52/53, and was localized on sub-telomeric regions of all E. arundinaceus chromosomes. YCE06-61, a BC3 progeny, had 7 E. arundinaceus chromosomes and its progenies had approximately 1-6 E. arundinaceus chromosomes. The number of E. arundinaceus chromosomes in true hybrids appeared as Gaussian distribution in 3 cross combinations. In addition, GISH detected intergeneric chromosome translocation in a few progenies. Hence, screening clones containing approximately 1-2 E. arundinaceus chromosomes without translocation could be used for sorting and sequencing E. arundinaceus chromosomes. This study provides a method for breeders to select true hybrid progenies between Saccharum spp. and E. arundinaceus, which will accelerate this intergeneric hybridization breeding.
Collapse
Affiliation(s)
- Shan Yang
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.,Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Kai Zeng
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Ke Chen
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Jiayun Wu
- Guangdong Provincial Bioengineering Institute, Guangzhou Sugarcane Industry Research Institute, Guangzhou, 510316, China
| | - Qinnan Wang
- Guangdong Provincial Bioengineering Institute, Guangzhou Sugarcane Industry Research Institute, Guangzhou, 510316, China
| | - Xueting Li
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Zuhu Deng
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. .,Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. .,State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, China.
| | - Yongji Huang
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Fei Huang
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Rukai Chen
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Muqing Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, China
| |
Collapse
|
14
|
Zhang J, Zhang Q, Li L, Tang H, Zhang Q, Chen Y, Arrow J, Zhang X, Wang A, Miao C, Ming R. Recent polyploidization events in three Saccharum founding species. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:264-274. [PMID: 29878497 PMCID: PMC6330536 DOI: 10.1111/pbi.12962] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/21/2018] [Accepted: 06/04/2018] [Indexed: 05/07/2023]
Abstract
The complexity of polyploid Saccharum genomes hindered progress of genome research and crop improvement in sugarcane. To understand their genome structure, transcriptomes of 59 F1 individuals derived from S. officinarumLA Purple and S. robustum Molokai 5829 (2n = 80, x = 10 for both) were sequenced, yielding 11 157 and 8998 SNPs and 83 and 105 linkage groups, respectively. Most markers in each linkage group aligned to single sorghum chromosome. However, 71 interchromosomal rearrangements were detected between sorghum and S. officinarum or S. robustum, and 24 (33.8%) of them were shared between S. officinarum and S. robustum, indicating their occurrence before the speciation event that separated these two species. More than 2000 gene pairs from S. spontaneum, S. officinarum and S. robustum were analysed to estimate their divergence time. Saccharum officinarum and S. robustum diverged about 385 thousand years ago, and the whole-genome duplication events occurred after the speciation event because of shared interchromosomal rearrangements. The ancestor of these two species diverged from S. spontaneum about 769 thousand years ago, and the reduction in basic chromosome number from 10 to 8 in S. spontaneum occurred after the speciation event but before the two rounds of whole-genome duplication. Our results proved that S. officinarum is a legitimate species in its own right and not a selection from S. robustum during the domestication process in the past 10 000 years. Our findings rejected a long-standing hypothesis and clarified the timing of speciation and whole-genome duplication events in Saccharum.
Collapse
Affiliation(s)
- Jisen Zhang
- FAFU and UIUC Joint Center for Genomics and BiotechnologyKey Laboratory of Sugarcane Biology and Genetic Breeding Ministry of AgricultureFujian Agriculture and Forestry UniversityFuzhouFujianChina
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, and Key Laboratory of GeneticsBreeding and Multiple Utilization of CorpsMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouFujianChina
- College of Life SciencesFujian Normal UniversityFuzhouChina
| | - Qing Zhang
- FAFU and UIUC Joint Center for Genomics and BiotechnologyKey Laboratory of Sugarcane Biology and Genetic Breeding Ministry of AgricultureFujian Agriculture and Forestry UniversityFuzhouFujianChina
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, and Key Laboratory of GeneticsBreeding and Multiple Utilization of CorpsMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouFujianChina
- College of Life SciencesFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Leiting Li
- College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Haibao Tang
- FAFU and UIUC Joint Center for Genomics and BiotechnologyKey Laboratory of Sugarcane Biology and Genetic Breeding Ministry of AgricultureFujian Agriculture and Forestry UniversityFuzhouFujianChina
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, and Key Laboratory of GeneticsBreeding and Multiple Utilization of CorpsMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Qiong Zhang
- Key Laboratory of Plant Germplasm Enhancement and Specialty AgricultureWuhan Botanical GardenChinese Academy of SciencesWuhanChina
| | - Yang Chen
- College of Life SciencesFujian Normal UniversityFuzhouChina
| | - Jie Arrow
- Department of Plant BiologyUniversity of Illinois at Urbana‐ChampaignUrbanaILUSA
| | - Xingtan Zhang
- FAFU and UIUC Joint Center for Genomics and BiotechnologyKey Laboratory of Sugarcane Biology and Genetic Breeding Ministry of AgricultureFujian Agriculture and Forestry UniversityFuzhouFujianChina
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, and Key Laboratory of GeneticsBreeding and Multiple Utilization of CorpsMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Aiqin Wang
- State Key Lab for Conservation and Utilization of Subtropical Agro‐biological ResourcesGuangxi UniversityNanningChina
| | - Chenyong Miao
- FAFU and UIUC Joint Center for Genomics and BiotechnologyKey Laboratory of Sugarcane Biology and Genetic Breeding Ministry of AgricultureFujian Agriculture and Forestry UniversityFuzhouFujianChina
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, and Key Laboratory of GeneticsBreeding and Multiple Utilization of CorpsMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Ray Ming
- FAFU and UIUC Joint Center for Genomics and BiotechnologyKey Laboratory of Sugarcane Biology and Genetic Breeding Ministry of AgricultureFujian Agriculture and Forestry UniversityFuzhouFujianChina
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, and Key Laboratory of GeneticsBreeding and Multiple Utilization of CorpsMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouFujianChina
- Department of Plant BiologyUniversity of Illinois at Urbana‐ChampaignUrbanaILUSA
| |
Collapse
|
15
|
Piriyapongsa J, Kaewprommal P, Vaiwsri S, Anuntakarun S, Wirojsirasak W, Punpee P, Klomsa-Ard P, Shaw PJ, Pootakham W, Yoocha T, Sangsrakru D, Tangphatsornruang S, Tongsima S, Tragoonrung S. Uncovering full-length transcript isoforms of sugarcane cultivar Khon Kaen 3 using single-molecule long-read sequencing. PeerJ 2018; 6:e5818. [PMID: 30397543 PMCID: PMC6214230 DOI: 10.7717/peerj.5818] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 09/23/2018] [Indexed: 12/15/2022] Open
Abstract
Background Sugarcane is an important global food crop and energy resource. To facilitate the sugarcane improvement program, genome and gene information are important for studying traits at the molecular level. Most currently available transcriptome data for sugarcane were generated using second-generation sequencing platforms, which provide short reads. The de novo assembled transcripts from these data are limited in length, and hence may be incomplete and inaccurate, especially for long RNAs. Methods We generated a transcriptome dataset of leaf tissue from a commercial Thai sugarcane cultivar Khon Kaen 3 (KK3) using PacBio RS II single-molecule long-read sequencing by the Iso-Seq method. Short-read RNA-Seq data were generated from the same RNA sample using the Ion Proton platform for reducing base calling errors. Results A total of 119,339 error-corrected transcripts were generated with the N50 length of 3,611 bp, which is on average longer than any previously reported sugarcane transcriptome dataset. 110,253 sequences (92.4%) contain an open reading frame (ORF) of at least 300 bp long with ORF N50 of 1,416 bp. The mean lengths of 5′ and 3′ untranslated regions in 73,795 sequences with complete ORFs are 1,249 and 1,187 bp, respectively. 4,774 transcripts are putatively novel full-length transcripts which do not match with a previous Iso-Seq study of sugarcane. We annotated the functions of 68,962 putative full-length transcripts with at least 90% coverage when compared with homologous protein coding sequences in other plants. Discussion The new catalog of transcripts will be useful for genome annotation, identification of splicing variants, SNP identification, and other research pertaining to the sugarcane improvement program. The putatively novel transcripts suggest unique features of KK3, although more data from different tissues and stages of development are needed to establish a reference transcriptome of this cultivar.
Collapse
Affiliation(s)
- Jittima Piriyapongsa
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Pavita Kaewprommal
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Sirintra Vaiwsri
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Songtham Anuntakarun
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | | | - Prapat Punpee
- Mitr Phol Sugarcane Research Center Co., Ltd., Chaiyaphum, Thailand
| | | | - Philip J Shaw
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Wirulda Pootakham
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Thippawan Yoocha
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Duangjai Sangsrakru
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Sithichoke Tangphatsornruang
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Sissades Tongsima
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Somvong Tragoonrung
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| |
Collapse
|
16
|
Machado LESF, De Paula VS, Pustovalova Y, Bezsonova I, Valente AP, Korzhnev DM, Almeida FCL. Conformational Dynamics of a Cysteine-Stabilized Plant Defensin Reveals an Evolutionary Mechanism to Expose Hydrophobic Residues. Biochemistry 2018; 57:5797-5806. [PMID: 30207151 DOI: 10.1021/acs.biochem.8b00753] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Sugar cane defensin 5 (Sd5) is a small antifungal protein, whose structure is held together by four conserved disulfide bridges. Sd5 and other proteins sharing a cysteine-stabilized α-β (CSαβ) fold lack a regular hydrophobic core. Instead, they are stabilized by tertiary contacts formed by surface-exposed hydrophilic and hydrophobic residues. Despite excessive cross-links, Sd5 exhibits complex millisecond conformational dynamics involving all secondary structure elements. We used Carr-Purcell-Meiboom-Gill (CPMG) NMR relaxation dispersion (RD) measurements performed at different temperatures and denaturant concentrations to probe brief excursions of Sd5 to a sparsely populated "excited" state. Temperature-dependent CPMG RD experiments reveal that the excited state is enthalpically unfavorable, suggesting a rearrangement of stabilizing contacts formed by surface-exposed side chains and/or secondary structure, while the experiments performed at different denaturant concentrations suggest a decrease in accessible surface area of Sd5 in the excited state. The measured backbone 15N chemical shift changes point to a global conformational rearrangement such as a potential α- to β-transition of the Sd5 α-helix or other major secondary structure reorganization and concomitant conformational changes in other parts of the protein. Overall, the emerging picture of Sd5 dynamics suggests this protein can populate two alternative well-ordered conformational states, with the excited conformer being more compact than the native state and having a distinct secondary structure and side-chain arrangements. The observation of an energetically unfavorable yet more compact excited state reveals a remarkable evolution of the CSαβ fold to expose and reorganize hydrophobic residues, which enables the creation of versatile binding sites.
Collapse
Affiliation(s)
- Luciana E S F Machado
- Centro Nacional de Ressonância Magnética Nuclear de Macromoléculas, Instituto de Bioquímica Médica e Centro Nacional de Biologia Estrutural e Bioimagem (CENABIO) , Universidade Federal do Rio de Janeiro , Rio de Janeiro 21941-902 , Brazil
- Department of Molecular Biology and Biophysics , University of Connecticut Health Center , Farmington , Connecticut 06030 , United States
| | - Viviane S De Paula
- Centro Nacional de Ressonância Magnética Nuclear de Macromoléculas, Instituto de Bioquímica Médica e Centro Nacional de Biologia Estrutural e Bioimagem (CENABIO) , Universidade Federal do Rio de Janeiro , Rio de Janeiro 21941-902 , Brazil
| | - Yulia Pustovalova
- Department of Molecular Biology and Biophysics , University of Connecticut Health Center , Farmington , Connecticut 06030 , United States
| | - Irina Bezsonova
- Department of Molecular Biology and Biophysics , University of Connecticut Health Center , Farmington , Connecticut 06030 , United States
| | - Ana Paula Valente
- Centro Nacional de Ressonância Magnética Nuclear de Macromoléculas, Instituto de Bioquímica Médica e Centro Nacional de Biologia Estrutural e Bioimagem (CENABIO) , Universidade Federal do Rio de Janeiro , Rio de Janeiro 21941-902 , Brazil
| | - Dmitry M Korzhnev
- Department of Molecular Biology and Biophysics , University of Connecticut Health Center , Farmington , Connecticut 06030 , United States
| | - Fabio C L Almeida
- Centro Nacional de Ressonância Magnética Nuclear de Macromoléculas, Instituto de Bioquímica Médica e Centro Nacional de Biologia Estrutural e Bioimagem (CENABIO) , Universidade Federal do Rio de Janeiro , Rio de Janeiro 21941-902 , Brazil
| |
Collapse
|
17
|
Sharma A, Song J, Lin Q, Singh R, Ramos N, Wang K, Zhang J, Ming R, Yu Q. Comparative Analysis of Homologous Sequences of Saccharum officinarum and Saccharum spontaneum Reveals Independent Polyploidization Events. FRONTIERS IN PLANT SCIENCE 2018; 9:1414. [PMID: 30319674 PMCID: PMC6167920 DOI: 10.3389/fpls.2018.01414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 09/06/2018] [Indexed: 06/08/2023]
Abstract
Sugarcane (Saccharum spp. hybrids) is an economically important crop widely grown in tropical and subtropical regions for sugar and ethanol production. However, the large genome size, high ploidy level, interspecific hybridization and aneuploidy make sugarcane one of the most complex genomes and have long hampered genome research in sugarcane. Modern sugarcane cultivars are derived from interspecific hybridization between S. officinarum and S. spontaneum with 80-90% of the genome from S. officinarum and 10-20% of the genome from S. spontaneum. We constructed bacterial artificial chromosome (BAC) libraries of S. officinarum variety LA Purple (2n = 8x = 80) and S. spontaneum haploid clone AP85-441 (2n = 4x = 32), and selected and sequenced 97 BAC clones from the two Saccharum BAC libraries. A total of 5,847,280 bp sequence from S. officinarum and 5,011,570 bp from S. spontaneum were assembled and 749 gene models were annotated in these BACs. A relatively higher gene density and lower repeat content were observed in S. spontaneum BACs than in S. officinarum BACs. Comparative analysis of syntenic regions revealed a high degree of collinearity in genic regions between Saccharum and Sorghum bicolor and between S. officinarum and S. spontaneum. In the syntenic regions, S. spontaneum showed expansion relative to S. officinarum, and both S. officinarum and S. spontaneum showed expansion relative to sorghum. Among the 75 full-length LTR retrotransposons identified in the Saccharum BACs, none of them are older than 2.6 mys and no full-length LTR elements are shared between S. officinarum and S. spontaneum. In addition, divergence time estimated using a LTR junction marker and a syntenic gene shared by 3 S. officinarum and 1 S. spontaneum BACs revealed that the S. spontaneum intergenic region was distant to those from the 3 homologous regions in S. officinarum. Our results suggested that S. officinarum and S. spontaneum experienced at least two rounds of independent polyploidization in each lineage after their divergence from a common ancestor.
Collapse
Affiliation(s)
- Anupma Sharma
- Texas A&M AgriLife Research and Extension Center at Dallas, Texas A&M University System, Dallas, TX, United States
| | - Jinjin Song
- FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Haixia Institute of Science and Technology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qingfan Lin
- Texas A&M AgriLife Research and Extension Center at Dallas, Texas A&M University System, Dallas, TX, United States
| | - Ratnesh Singh
- Texas A&M AgriLife Research and Extension Center at Dallas, Texas A&M University System, Dallas, TX, United States
| | - Ninfa Ramos
- Texas A&M AgriLife Research Center at Weslaco, Texas A&M University System, Weslaco, TX, United States
| | - Kai Wang
- FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Haixia Institute of Science and Technology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jisen Zhang
- FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Haixia Institute of Science and Technology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ray Ming
- FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Haixia Institute of Science and Technology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
- Department of Plant Biology, University of Illinois at Urbana–Champaign, Urbana, IL, United States
| | - Qingyi Yu
- Texas A&M AgriLife Research and Extension Center at Dallas, Texas A&M University System, Dallas, TX, United States
- FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Haixia Institute of Science and Technology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, United States
| |
Collapse
|
18
|
A Robust Methodology for Assessing Differential Homeolog Contributions to the Transcriptomes of Allopolyploids. Genetics 2018; 210:883-894. [PMID: 30213855 DOI: 10.1534/genetics.118.301564] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 09/07/2018] [Indexed: 12/18/2022] Open
Abstract
Polyploidy has played a pivotal and recurring role in angiosperm evolution. Allotetraploids arise from hybridization between species and possess duplicated gene copies (homeologs) that serve redundant roles immediately after polyploidization. Although polyploidization is a major contributor to plant evolution, it remains poorly understood. We describe an analytical approach for assessing homeolog-specific expression that begins with de novo assembly of parental transcriptomes and effectively (i) reduces redundancy in de novo assemblies, (ii) identifies putative orthologs, (iii) isolates common regions between orthologs, and (iv) assesses homeolog-specific expression using a robust Bayesian Poisson-Gamma model to account for sequence bias when mapping polyploid reads back to parental references. Using this novel methodology, we examine differential homeolog contributions to the transcriptome in the recently formed allopolyploids Tragopogon mirus and T. miscellus (Compositae). Notably, we assess a larger Tragopogon gene set than previous studies of this system. Using carefully identified orthologous regions and filtering biased orthologs, we find in both allopolyploids largely balanced expression with no strong parental bias. These new methods can be used to examine homeolog expression in any tetrapolyploid system without requiring a reference genome.
Collapse
|
19
|
Garsmeur O, Droc G, Antonise R, Grimwood J, Potier B, Aitken K, Jenkins J, Martin G, Charron C, Hervouet C, Costet L, Yahiaoui N, Healey A, Sims D, Cherukuri Y, Sreedasyam A, Kilian A, Chan A, Van Sluys MA, Swaminathan K, Town C, Bergès H, Simmons B, Glaszmann JC, van der Vossen E, Henry R, Schmutz J, D'Hont A. A mosaic monoploid reference sequence for the highly complex genome of sugarcane. Nat Commun 2018; 9:2638. [PMID: 29980662 PMCID: PMC6035169 DOI: 10.1038/s41467-018-05051-5] [Citation(s) in RCA: 179] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 06/13/2018] [Indexed: 01/31/2023] Open
Abstract
Sugarcane (Saccharum spp.) is a major crop for sugar and bioenergy production. Its highly polyploid, aneuploid, heterozygous, and interspecific genome poses major challenges for producing a reference sequence. We exploited colinearity with sorghum to produce a BAC-based monoploid genome sequence of sugarcane. A minimum tiling path of 4660 sugarcane BAC that best covers the gene-rich part of the sorghum genome was selected based on whole-genome profiling, sequenced, and assembled in a 382-Mb single tiling path of a high-quality sequence. A total of 25,316 protein-coding gene models are predicted, 17% of which display no colinearity with their sorghum orthologs. We show that the two species, S. officinarum and S. spontaneum, involved in modern cultivars differ by their transposable elements and by a few large chromosomal rearrangements, explaining their distinct genome size and distinct basic chromosome numbers while also suggesting that polyploidization arose in both lineages after their divergence.
Collapse
Affiliation(s)
- Olivier Garsmeur
- CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), UMR AGAP, F-34398, Montpellier, France.,AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, 34060, Montpellier, France
| | - Gaetan Droc
- CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), UMR AGAP, F-34398, Montpellier, France.,AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, 34060, Montpellier, France
| | | | - Jane Grimwood
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, 35801, USA
| | - Bernard Potier
- SASRI (South African Sugarcane Research Institute), Mount Edgecombe, 4300, South Africa
| | - Karen Aitken
- CSIRO (Commonwealth Scientific and Industrial Research Organisation), St. Lucia, QLD, 4067, Australia
| | - Jerry Jenkins
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, 35801, USA
| | - Guillaume Martin
- CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), UMR AGAP, F-34398, Montpellier, France.,AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, 34060, Montpellier, France
| | - Carine Charron
- CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), UMR AGAP, F-34398, Montpellier, France.,AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, 34060, Montpellier, France
| | - Catherine Hervouet
- CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), UMR AGAP, F-34398, Montpellier, France.,AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, 34060, Montpellier, France
| | - Laurent Costet
- CIRAD, UMR PVBMT, F-97410, Saint-Pierre, La Réunion, France
| | - Nabila Yahiaoui
- CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), UMR AGAP, F-34398, Montpellier, France.,AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, 34060, Montpellier, France
| | - Adam Healey
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, 35801, USA
| | - David Sims
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, 35801, USA
| | | | | | - Andrzej Kilian
- Diversity Arrays Technology, Yarralumla, ACT, 2600, Australia
| | - Agnes Chan
- J. Craig Venter Institute, Rockville, MD, 20850, USA
| | | | | | | | - Hélène Bergès
- INRA-CNRGV, 31326, Toulouse, Castanet-Tolosan, France
| | - Blake Simmons
- JBEI Joint BioEnergy Institute, Emeryville, CA, 94608, USA
| | - Jean Christophe Glaszmann
- CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), UMR AGAP, F-34398, Montpellier, France.,AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, 34060, Montpellier, France
| | | | - Robert Henry
- QAAFI (Queensland Alliance for Agriculture and Food Innovation), University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Jeremy Schmutz
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, 35801, USA.,Department of Energy, Joint Genome Institute, Walnut Creek, CA, 94598, USA
| | - Angélique D'Hont
- CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), UMR AGAP, F-34398, Montpellier, France. .,AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, 34060, Montpellier, France.
| |
Collapse
|
20
|
Ukoskit K, Posudsavang G, Pongsiripat N, Chatwachirawong P, Klomsa-Ard P, Poomipant P, Tragoonrung S. Detection and validation of EST-SSR markers associated with sugar-related traits in sugarcane using linkage and association mapping. Genomics 2018; 111:1-9. [PMID: 29608956 DOI: 10.1016/j.ygeno.2018.03.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/14/2018] [Accepted: 03/25/2018] [Indexed: 01/17/2023]
Abstract
Sugar-related traits are of great importance in sugarcane breeding. In the present study, quantitative trait loci (QTL) mapping validated with association mapping was used to identify expressed sequence tag-simple sequence repeats (EST-SSRs) associated with sugar-related traits. For linkage mapping, 524 EST-SSRs, 241 Amplified Fragment Length Polymorphisms, and 10 genomic SSR markers were mapped using 283 F1 progenies derived from an interspecific cross. Six regions were identified using Multiple QTL Mapping, and 14 unlinked markers using single marker analysis. Association analysis was performed on a set of 200 accessions, based on the mixed linear model. Validation of the EST-SSR markers using association mapping within the target QTL genomic regions identified two EST-SSR markers showing a putative relationship with uridine diphosphate (UDP) glycosyltransferase, and beta-amylase, which are associated with pol and sugar yield. These functional markers can be used for marker-assisted selection of sugarcane.
Collapse
Affiliation(s)
- Kittipat Ukoskit
- Department of Biotechnology, Thammasat University, (Rangsit Campus) Klong Luang, Pathum Thani 12121, Thailand.
| | - Ganlayarat Posudsavang
- Department of Biotechnology, Thammasat University, (Rangsit Campus) Klong Luang, Pathum Thani 12121, Thailand
| | - Nattapat Pongsiripat
- Department of Biotechnology, Thammasat University, (Rangsit Campus) Klong Luang, Pathum Thani 12121, Thailand
| | - Prasert Chatwachirawong
- Department of Agronomy, Faculty of Agriculture, Kasetsart University, (Kamphaengsean Campus), Nakhon Pathom, 73140, Thailand
| | - Peeraya Klomsa-Ard
- Mitr Phol Innovation and Research Centre, 399 Moo 1, Chumphae-Phukiao Rd. Khoksa-at, Phu Khiao, Chaiyaphum 36110, Thailand
| | - Patthinun Poomipant
- Institute of Food Research and Product Development, Kasetsart University, P.O. Box 1043, Kasetsart, Chatuchak, Bangkok 10903, Thailand
| | - Somvong Tragoonrung
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, 113 Thailand Science Park, Khlong Luang, Pathum Thani 12120, Thailand
| |
Collapse
|
21
|
Mancini MC, Cardoso-Silva CB, Sforça DA, Pereira de Souza A. "Targeted Sequencing by Gene Synteny," a New Strategy for Polyploid Species: Sequencing and Physical Structure of a Complex Sugarcane Region. FRONTIERS IN PLANT SCIENCE 2018; 9:397. [PMID: 29643861 PMCID: PMC5882829 DOI: 10.3389/fpls.2018.00397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 03/12/2018] [Indexed: 05/25/2023]
Abstract
Sugarcane exhibits a complex genome mainly due to its aneuploid nature and high ploidy level, and sequencing of its genome poses a great challenge. Closely related species with well-assembled and annotated genomes can be used to help assemble complex genomes. Here, a stable quantitative trait locus (QTL) related to sugar accumulation in sorghum was successfully transferred to the sugarcane genome. Gene sequences related to this QTL were identified in silico from sugarcane transcriptome data, and molecular markers based on these sequences were developed to select bacterial artificial chromosome (BAC) clones from the sugarcane variety SP80-3280. Sixty-eight BAC clones containing at least two gene sequences associated with the sorghum QTL were sequenced using Pacific Biosciences (PacBio) technology. Twenty BAC sequences were found to be related to the syntenic region, of which nine were sufficient to represent this region. The strategy we propose is called "targeted sequencing by gene synteny," which is a simpler approach to understanding the genome structure of complex genomic regions associated with traits of interest.
Collapse
Affiliation(s)
- Melina C. Mancini
- Center for Molecular Biology and Genetic Engineering, University of Campinas, Campinas, Brazil
| | | | - Danilo A. Sforça
- Center for Molecular Biology and Genetic Engineering, University of Campinas, Campinas, Brazil
| | - Anete Pereira de Souza
- Center for Molecular Biology and Genetic Engineering, University of Campinas, Campinas, Brazil
- Departament Plant Biology, Biology Institute, University of Campinas, Campinas, Brazil
| |
Collapse
|
22
|
Singh R, Jones T, Wai CM, Jifon J, Nagai C, Ming R, Yu Q. Transcriptomic analysis of transgressive segregants revealed the central role of photosynthetic capacity and efficiency in biomass accumulation in sugarcane. Sci Rep 2018. [PMID: 29535363 PMCID: PMC5849761 DOI: 10.1038/s41598-018-22798-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Sugarcane is among the most efficient crops in converting solar energy into chemical energy. However, due to its complex genome structure and inheritance, the genetic and molecular basis of biomass yield in sugarcane is still largely unknown. We created an F2 segregating population by crossing S. officinarum and S. spontaneum and evaluated the biomass yield of the F2 individuals. The F2 individuals exhibited clear transgressive segregation in biomass yield. We sequenced transcriptomes of source and sink tissues from 12 selected extreme segregants to explore the molecular basis of high biomass yield for future breeding of high-yielding energy canes. Among the 103,664 assembled unigenes, 10,115 and 728 showed significant differential expression patterns between the two extreme segregating groups in the top visible dewlap leaf and the 9th culm internode, respectively. The most enriched functional categories were photosynthesis and fermentation in the high-biomass and the low-biomass groups, respectively. Our results revealed that high-biomass yield was mainly determined by assimilation of carbon in source tissues. The high-level expression of fermentative genes in the low-biomass group was likely induced by their low-energy status. Group-specific expression alleles which can be applied in the development of new high-yielding energy cane varieties via molecular breeding were identified.
Collapse
Affiliation(s)
- Ratnesh Singh
- Texas A&M AgriLife Research Center at Dallas, Texas A&M University System, Dallas, TX, 75252, USA
| | - Tyler Jones
- Hawaii Agriculture Research Center, Kunia, HI, 96759, USA
| | - Ching Man Wai
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - John Jifon
- Texas A&M AgriLife Research Center at Weslaco, Texas A&M University System, Weslaco, TX, 78596, USA
| | - Chifumi Nagai
- Hawaii Agriculture Research Center, Kunia, HI, 96759, USA
| | - Ray Ming
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.,Center for Genomics and Biotechnology, Fujian Provincial Key laboratory of Haixia applied plant systems biology, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
| | - Qingyi Yu
- Texas A&M AgriLife Research Center at Dallas, Texas A&M University System, Dallas, TX, 75252, USA. .,Center for Genomics and Biotechnology, Fujian Provincial Key laboratory of Haixia applied plant systems biology, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China. .,Department of Plant Pathology & Microbiology, Texas A&M University, College Station, TX, 77843, USA.
| |
Collapse
|
23
|
Thirugnanasambandam PP, Hoang NV, Henry RJ. The Challenge of Analyzing the Sugarcane Genome. FRONTIERS IN PLANT SCIENCE 2018; 9:616. [PMID: 29868072 PMCID: PMC5961476 DOI: 10.3389/fpls.2018.00616] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 04/18/2018] [Indexed: 05/04/2023]
Abstract
Reference genome sequences have become key platforms for genetics and breeding of the major crop species. Sugarcane is probably the largest crop produced in the world (in weight of crop harvested) but lacks a reference genome sequence. Sugarcane has one of the most complex genomes in crop plants due to the extreme level of polyploidy. The genome of modern sugarcane hybrids includes sub-genomes from two progenitors Saccharum officinarum and S. spontaneum with some chromosomes resulting from recombination between these sub-genomes. Advancing DNA sequencing technologies and strategies for genome assembly are making the sugarcane genome more tractable. Advances in long read sequencing have allowed the generation of a more complete set of sugarcane gene transcripts. This is supporting transcript profiling in genetic research. The progenitor genomes are being sequenced. A monoploid coverage of the hybrid genome has been obtained by sequencing BAC clones that cover the gene space of the closely related sorghum genome. The complete polyploid genome is now being sequenced and assembled. The emerging genome will allow comparison of related genomes and increase understanding of the functioning of this polyploidy system. Sugarcane breeding for traditional sugar and new energy and biomaterial uses will be enhanced by the availability of these genomic resources.
Collapse
Affiliation(s)
- Prathima P. Thirugnanasambandam
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
- ICAR - Sugarcane Breeding Institute, Coimbatore, India
- *Correspondence: Prathima P. Thirugnanasambandam,
| | - Nam V. Hoang
- College of Agriculture and Forestry, Hue University, Hue, Vietnam
| | - Robert J. Henry
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
| |
Collapse
|
24
|
Meng Z, Zhang Z, Yan T, Lin Q, Wang Y, Huang W, Huang Y, Li Z, Yu Q, Wang J, Wang K. Comprehensively Characterizing the Cytological Features of Saccharum spontaneum by the Development of a Complete Set of Chromosome-Specific Oligo Probes. FRONTIERS IN PLANT SCIENCE 2018; 9:1624. [PMID: 30459801 PMCID: PMC6232525 DOI: 10.3389/fpls.2018.01624] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 10/18/2018] [Indexed: 05/04/2023]
Abstract
Chromosome-specific identification is a powerful technique in the study of genome structure and evolution. However, there is no reliable cytogenetic marker to unambiguously identify each of the chromosomes in sugarcane (Saccharum spp., Poaceae), which has a complex genome with a high level of ploidy and heterozygosity. In this study, we developed a set of oligonucleotide (oligo)-based probes through bioinformatic design and massive synthetization. These probes produced a clear and bright single signal in each of the chromosomes and their eight homologous chromosomes in the ancient species Saccharum spontaneum (2n = 8x = 64). Thus, they can be used as reliable markers to robustly label each of the chromosomes in S. spontaneum. We then obtained the karyotype data and established a nomenclature based on chromosomal sizes for the eight chromosomes of the octoploid S. spontaneum. In addition, we also found that the 45S and 5S rDNAs demonstrated high copy number variations among different homologous chromosomes, indicating a rapid evolution of the highly repeated sequence after polyploidization. Our fluorescence in situ hybridization (FISH) assay also demonstrated that these probes could be used as cross-species markers between or within the genera of Sorghum and Saccharum. By comparing FISH analyses, we discovered that several chromosome rearrangement events occurred in S. spontaneum, which might have contributed to the basic chromosome number reduction from 10 in sorghum to 8 in sugarcane. Consistent identification of individual chromosomes makes molecular cytogenetic study possible in sugarcane and will facilitate fine chromosomal structure and karyotype evolution of the genus Saccharum.
Collapse
Affiliation(s)
- Zhuang Meng
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhiliang Zhang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Tianying Yan
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qingfang Lin
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yu Wang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Weiyuan Huang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yongji Huang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhanjie Li
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qingyi Yu
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
- Texas A&M AgriLife Research, The Texas A&M University System, Dallas, TX, United States
| | - Jianping Wang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
- Department of Agronomy, University of Florida, Gainesville, FL, United States
| | - Kai Wang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
- National Engineering Research Center of Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, China
- *Correspondence: Kai Wang, ;
| |
Collapse
|
25
|
Dong G, Shen J, Zhang Q, Wang J, Yu Q, Ming R, Wang K, Zhang J. Development and Applications of Chromosome-Specific Cytogenetic BAC-FISH Probes in S. spontaneum. FRONTIERS IN PLANT SCIENCE 2018; 9:218. [PMID: 29535742 PMCID: PMC5834487 DOI: 10.3389/fpls.2018.00218] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Saccharum spontaneum is a major Saccharum species that contributed to the origin of modern sugarcane cultivars, and due to a high degree of polyploidy is considered to be a plant species with one of the most complex genetics. Fluorescence in situ hybridization (FISH) is a powerful and widely used tool in genome studies. Here, we demonstrated that FISH based on bacterial artificial chromosome (BAC) clones can be used as a specific cytological marker to identify S. spontaneum individual chromosomes and study the relationship between S. spontaneum and other related species. We screened low-copy BACs as probes from the sequences of a high coverage of S. spontaneum BAC library based on BLAST search of the sorghum genome. In total, we isolated 49 positive BAC clones, and identified 27 BAC clones that can give specific signals on the S. spontaneum chromosomes. Of the 27 BAC probes, 18 were confirmed to be able to discriminate the eight basic chromosomes of S. spontaneum. Moreover, BAC-24, BAC-66, BAC-78, BAC-69, BAC-71, BAC-73, and BAC-77 probes were used to construct physical maps of chromosome 1 and chromosome 2 of S. spontaneum, which indicated synteny in Sb01 between S. spontaneum and sorghum. Furthermore, we found that BAC-14 and BAC-19 probes, corresponding to the sorghum chromosomes 2 and 8, respectively, localized to different arms of the same S. spontaneum chromosome, suggesting that there was an inter-chromosomal rearrangement event between S. spontaneum and sorghum. Our study provides the first set of chromosome-specific cytogenetic markers in Saccharum and is critical for future advances in cytogenetics and genome sequencing studies in Saccharum.
Collapse
Affiliation(s)
- Guangrui Dong
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Haixia Institute of Science and Technology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jiao Shen
- College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Qing Zhang
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Haixia Institute of Science and Technology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jianping Wang
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Haixia Institute of Science and Technology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Agronomy Department, University of Florida, Gainesville, FL, United States
| | - Qingyi Yu
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Haixia Institute of Science and Technology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Ray Ming
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Haixia Institute of Science and Technology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Texas A&M AgriLife Research Center, Department of Plant Pathology and Microbiology, Texas A&M University System, Dallas, TX, United States
| | - Kai Wang
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Haixia Institute of Science and Technology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jisen Zhang
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Haixia Institute of Science and Technology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Life Sciences, Fujian Normal University, Fuzhou, China
- *Correspondence: Jisen Zhang,
| |
Collapse
|
26
|
Thiebaut F, Rojas CA, Grativol C, Calixto EPDR, Motta MR, Ballesteros HGF, Peixoto B, de Lima BNS, Vieira LM, Walter ME, de Armas EM, Entenza JOP, Lifschitz S, Farinelli L, Hemerly AS, Ferreira PCG. Roles of Non-Coding RNA in Sugarcane-Microbe Interaction. Noncoding RNA 2017; 3:E25. [PMID: 29657296 PMCID: PMC5831913 DOI: 10.3390/ncrna3040025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 12/11/2017] [Accepted: 12/19/2017] [Indexed: 12/19/2022] Open
Abstract
Studies have highlighted the importance of non-coding RNA regulation in plant-microbe interaction. However, the roles of sugarcane microRNAs (miRNAs) in the regulation of disease responses have not been investigated. Firstly, we screened the sRNA transcriptome of sugarcane infected with Acidovorax avenae. Conserved and novel miRNAs were identified. Additionally, small interfering RNAs (siRNAs) were aligned to differentially expressed sequences from the sugarcane transcriptome. Interestingly, many siRNAs aligned to a transcript encoding a copper-transporter gene whose expression was induced in the presence of A. avenae, while the siRNAs were repressed in the presence of A. avenae. Moreover, a long intergenic non-coding RNA was identified as a potential target or decoy of miR408. To extend the bioinformatics analysis, we carried out independent inoculations and the expression patterns of six miRNAs were validated by quantitative reverse transcription-PCR (qRT-PCR). Among these miRNAs, miR408-a copper-microRNA-was downregulated. The cleavage of a putative miR408 target, a laccase, was confirmed by a modified 5'RACE (rapid amplification of cDNA ends) assay. MiR408 was also downregulated in samples infected with other pathogens, but it was upregulated in the presence of a beneficial diazotrophic bacteria. Our results suggest that regulation by miR408 is important in sugarcane sensing whether microorganisms are either pathogenic or beneficial, triggering specific miRNA-mediated regulatory mechanisms accordingly.
Collapse
Affiliation(s)
- Flávia Thiebaut
- Laboratório de Biologia Molecular de Plantas, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil.
| | - Cristian A Rojas
- Universidade Federal da INTEGRAÇÃO Latino-Americana, Foz do Iguaçu 85866-000, Brazil.
| | - Clícia Grativol
- Laboratório de Química e Função de Proteínas e Peptídeos, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes 28013-602, Brazil.
| | - Edmundo P da R Calixto
- Laboratório de Biologia Molecular de Plantas, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil.
| | - Mariana R Motta
- Laboratório de Biologia Molecular de Plantas, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil.
| | - Helkin G F Ballesteros
- Laboratório de Biologia Molecular de Plantas, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil.
| | - Barbara Peixoto
- Laboratório de Biologia Molecular de Plantas, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil.
| | - Berenice N S de Lima
- Laboratório de Biologia Molecular de Plantas, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil.
| | - Lucas M Vieira
- Departamento de Ciência da Computação, Universidade de Brasília, Brasília 70910-900, Brazil.
| | - Maria Emilia Walter
- Departamento de Ciência da Computação, Universidade de Brasília, Brasília 70910-900, Brazil.
| | - Elvismary M de Armas
- Departamento de Informática, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro 22451-900, Brazil.
| | - Júlio O P Entenza
- Departamento de Informática, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro 22451-900, Brazil.
| | - Sergio Lifschitz
- Departamento de Informática, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro 22451-900, Brazil.
| | | | - Adriana S Hemerly
- Laboratório de Biologia Molecular de Plantas, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil.
| | - Paulo C G Ferreira
- Laboratório de Biologia Molecular de Plantas, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil.
| |
Collapse
|
27
|
Vilela MDM, Del Bem LE, Van Sluys MA, de Setta N, Kitajima JP, Cruz GMQ, Sforça DA, de Souza AP, Ferreira PCG, Grativol C, Cardoso-Silva CB, Vicentini R, Vincentz M. Analysis of Three Sugarcane Homo/Homeologous Regions Suggests Independent Polyploidization Events of Saccharum officinarum and Saccharum spontaneum. Genome Biol Evol 2017; 9:266-278. [PMID: 28082603 PMCID: PMC5381655 DOI: 10.1093/gbe/evw293] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2016] [Indexed: 12/23/2022] Open
Abstract
Whole genome duplication has played an important role in plant evolution and diversification. Sugarcane is an important crop with a complex hybrid polyploid genome, for which the process of adaptation to polyploidy is still poorly understood. In order to improve our knowledge about sugarcane genome evolution and the homo/homeologous gene expression balance, we sequenced and analyzed 27 BACs (Bacterial Artificial Chromosome) of sugarcane R570 cultivar, containing the putative single-copy genes LFY (seven haplotypes), PHYC (four haplotypes), and TOR (seven haplotypes). Comparative genomic approaches showed that these sugarcane loci presented a high degree of conservation of gene content and collinearity (synteny) with sorghum and rice orthologous regions, but were invaded by transposable elements (TE). All the homo/homeologous haplotypes of LFY, PHYC, and TOR are likely to be functional, because they are all under purifying selection (dN/dS ≪ 1). However, they were found to participate in a nonequivalently manner to the overall expression of the corresponding gene. SNPs, indels, and amino acid substitutions allowed inferring the S. officinarum or S. spontaneum origin of the TOR haplotypes, which further led to the estimation that these two sugarcane ancestral species diverged between 2.5 and 3.5 Ma. In addition, analysis of shared TE insertions in TOR haplotypes suggested that two autopolyploidization may have occurred in the lineage that gave rise to S. officinarum, after its divergence from S. spontaneum.
Collapse
Affiliation(s)
- Mariane de Mendonça Vilela
- Centro de Biologia Molecular e Engenharia Genética, Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Luiz Eduardo Del Bem
- Centro de Biologia Molecular e Engenharia Genética, Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Marie-Anne Van Sluys
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, SP, Brazil
| | - Nathalia de Setta
- Universidade Federal do ABC (UFABC), São Bernardo do Campo, SP, Brazil
| | | | | | - Danilo Augusto Sforça
- Centro de Biologia Molecular e Engenharia Genética, Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Anete Pereira de Souza
- Centro de Biologia Molecular e Engenharia Genética, Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | | | - Clícia Grativol
- Laboratório de Química e Função de Proteínas e Peptídeos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Parque Califórnia, Campos dos Goytacazes, RJ, Brazil
| | - Claudio Benicio Cardoso-Silva
- Centro de Biologia Molecular e Engenharia Genética, Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Renato Vicentini
- Centro de Biologia Molecular e Engenharia Genética, Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Michel Vincentz
- Centro de Biologia Molecular e Engenharia Genética, Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brazil
| |
Collapse
|
28
|
Djami-Tchatchou AT, Sanan-Mishra N, Ntushelo K, Dubery IA. Functional Roles of microRNAs in Agronomically Important Plants-Potential as Targets for Crop Improvement and Protection. FRONTIERS IN PLANT SCIENCE 2017; 8:378. [PMID: 28382044 PMCID: PMC5360763 DOI: 10.3389/fpls.2017.00378] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 03/06/2017] [Indexed: 05/18/2023]
Abstract
MicroRNAs (miRNAs) are a class of small non-coding RNAs that have recently emerged as important regulators of gene expression, mainly through cleavage and/or translation inhibition of the target mRNAs during or after transcription. miRNAs play important roles by regulating a multitude of biological processes in plants which include maintenance of genome integrity, development, metabolism, and adaptive responses toward environmental stresses. The increasing population of the world and their food demands requires focused efforts for the improvement of crop plants to ensure sustainable food production. Manipulation of mRNA transcript abundance via miRNA control provides a unique strategy for modulating differential plant gene expression and miRNAs are thus emerging as the next generation targets for genetic engineering for improvement of the agronomic properties of crops. However, a deeper understanding of its potential and the mechanisms involved will facilitate the design of suitable strategies to obtain the desirable traits with minimum trade-offs in the modified crops. In this regard, this review highlights the diverse roles of conserved and newly identified miRNAs in various food and industrial crops and recent advances made in the uses of miRNAs to improve plants of agronomically importance so as to significantly enhance crop yields and increase tolerance to various environmental stress agents of biotic-or abiotic origin.
Collapse
Affiliation(s)
- Arnaud T. Djami-Tchatchou
- Department of Agriculture and Animal Health, University of South Africa (Florida Campus)Pretoria, South Africa
| | - Neeti Sanan-Mishra
- Plant RNAi Biology Group, International Centre for Genetic Engineering and BiotechnologyNew Delhi, India
| | - Khayalethu Ntushelo
- Department of Agriculture and Animal Health, University of South Africa (Florida Campus)Pretoria, South Africa
| | - Ian A. Dubery
- Department of Biochemistry, University of Johannesburg (Auckland Park Kingsway Campus)Johannesburg, South Africa
| |
Collapse
|
29
|
Chen Y, Zhang Q, Hu W, Zhang X, Wang L, Hua X, Yu Q, Ming R, Zhang J. Evolution and expression of the fructokinase gene family in Saccharum. BMC Genomics 2017; 18:197. [PMID: 28222695 PMCID: PMC5319016 DOI: 10.1186/s12864-017-3535-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 02/02/2017] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Sugarcane is an important sugar crop contributing up to about 80% of the world sugar production. Efforts to characterize the genes involved in sugar metabolism at the molecular level are growing since increasing sugar content is a major goal in the breeding of new sugarcane varieties. Fructokinases (FRK) are the main fructose phosphorylating enzymes with high substrate specificity and affinity. RESULTS In this study, by combining comparative genomics approaches with BAC resources, seven fructokinase genes were identified in S. spontaneum. Phylogenetic analysis based on representative monocotyledon and dicotyledon plant species suggested that the FRK gene family is ancient and its evolutionary history can be traced in duplicated descending order: SsFRK4, SsFRK6/SsFRK7,SsFRK5, SsFRK3 and SsFRK1/SsFRK2. Among the close orthologs, the number and position of exons in FRKs were conserved; in contrast, the size of introns varied among the paralogous FRKs in Saccharum. Genomic constraints were analyzed within the gene alleles and between S. spontaneum and Sorghum bicolor, and gene expression analysis was performed under drought stress and with exogenous applications of plant hormones. FRK1, which was under strong functional constraint selection, was conserved among the gene allelic haplotypes, and displayed dominant expression levels among the gene families in the control conditions, suggesting that FRK1 plays a major role in the phosphorylation of fructose. FRK3 and FRK5 were dramatically induced under drought stress, and FRK5 was also found to increase its expression levels in the mature stage of Saccharum. Similarly, FRK3 and FRK5 were induced in response to drought stress in Saccharum. FRK2 and FRK7 displayed lower expression levels than the other FRK family members; FRK2 was under strong genomic selection constraints whereas FRK7 was under neutral selection. FRK7 may have become functionally redundant in Saccharum through pseudogenization. FRK4 and FRK6 shared the most similar expression pattern: FRK4 was revealed to have higher expression levels in mature tissues than in premature tissues of Saccharum, and FRK6 presented a slight increase under drought stress. CONCLUSIONS Our study presents a comprehensive genomic study of the entire FRK gene family in Saccharum, providing the foundations for approaches to characterize the molecular mechanism regulated by the SsFRK family in sugarcane.
Collapse
Affiliation(s)
- Yihong Chen
- Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Fuzhou, 350002 China
- College of Life Sciences, Fujian Normal University, Fuzhou, 350117 China
| | - Qing Zhang
- Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Fuzhou, 350002 China
| | - Weichang Hu
- Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Fuzhou, 350002 China
| | - Xingtan Zhang
- Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Fuzhou, 350002 China
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002 China
| | - Liming Wang
- Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Fuzhou, 350002 China
| | - Xiuting Hua
- Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Fuzhou, 350002 China
- College of Life Sciences, Fujian Normal University, Fuzhou, 350117 China
| | - Qingyi Yu
- Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Fuzhou, 350002 China
- Texas A&M AgriLife Research, Department of Plant Pathology and Microbiology, Texas A&M University System, Dallas, TX 75252 USA
| | - Ray Ming
- Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Fuzhou, 350002 China
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
| | - Jisen Zhang
- Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Fuzhou, 350002 China
- College of Life Sciences, Fujian Normal University, Fuzhou, 350117 China
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002 China
| |
Collapse
|
30
|
Parida SK, Kalia S, Pandit A, Nayak P, Singh RK, Gaikwad K, Srivastava PS, Singh NK, Mohapatra T. Single nucleotide polymorphism in sugar pathway and disease resistance genes in sugarcane. PLANT CELL REPORTS 2016; 35:1629-1653. [PMID: 27289592 DOI: 10.1007/s00299-016-1978-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 03/21/2016] [Indexed: 06/06/2023]
Abstract
Single nucleotide polymorphism in sugar pathway and disease resistance genes showing genetic association with sugar content and red rot resistance would be useful in marker-assisted genetic improvement of sugarcane. Validation and genotyping of potential sequence variants in candidate genes are necessary to understand their functional significance and trait association potential. We discovered, characterized, validated and genotyped SNPs and InDels in sugar pathway and disease resistance genes of Saccharum complex and sugarcane varieties using amplicon sequencing and CAPS assays. The SNPs were abundant in the non-coding 3'UTRs than 5'UTRs and coding sequences depicting a strong bias toward C to T transition substitutions than transversions. Sequencing of cloned amplicons validated 61.6 and 45.2 % SNPs detected in silico in 21 sugar pathway and 16 disease resistance genes, respectively. Sixteen SNPs in four sugar pathway genes and 10 SNPs in nine disease resistance genes were validated through cost-effective CAPS assay. Functional and adaptive significance of SNP and protein haplotypes identified in sugar pathway and disease resistance genes was assessed by correlating their allelic variation with missense amino acid substitutions in the functional domains, alteration in protein structure models and possible modulation of catalytic enzyme activity in contrasting high and low sugar and moderately red rot resistant and highly susceptible sugarcane genotypes. A strong genetic association of five SNPs in the sugar pathway and disease resistance genes, and an InDel marker in the promoter sequence of sucrose synthase-2 gene, with sugar content and red rot resistance, was evident. The functionally relevant SNPs and InDels, detected and validated in sugar pathway and disease resistance genes, and genic CAPS markers designed, would be of immense use in marker-assisted genetic improvement of sugarcane for sugar content and disease resistance.
Collapse
Affiliation(s)
- Swarup K Parida
- National Research Centre on Plant Biotechnology, New Delhi, 110012, India
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Sanjay Kalia
- National Research Centre on Plant Biotechnology, New Delhi, 110012, India
- Department of Biotechnology, CGO Complex, Lodhi Road, New Delhi, 110003, India
| | - Awadhesh Pandit
- National Research Centre on Plant Biotechnology, New Delhi, 110012, India
- National Centre for Biological Sciences, Bengaluru, 560065, Karnataka , India
| | - Preetam Nayak
- Utkal University, Vanivihar, Bhubaneswar, Odisha, 751004, India
| | - Ram Kushal Singh
- U.P. Council of Sugarcane Research, Shahjahanpur, Uttar Pradesh, 242001, India
| | - Kishor Gaikwad
- National Research Centre on Plant Biotechnology, New Delhi, 110012, India
| | | | - Nagendra K Singh
- National Research Centre on Plant Biotechnology, New Delhi, 110012, India
| | - Trilochan Mohapatra
- National Research Centre on Plant Biotechnology, New Delhi, 110012, India.
- Indian Council of Agricultural Research, Krishi Bhavan, New Delhi, 110001, India.
| |
Collapse
|
31
|
Racedo J, Gutiérrez L, Perera MF, Ostengo S, Pardo EM, Cuenya MI, Welin B, Castagnaro AP. Genome-wide association mapping of quantitative traits in a breeding population of sugarcane. BMC PLANT BIOLOGY 2016; 16:142. [PMID: 27342657 PMCID: PMC4921039 DOI: 10.1186/s12870-016-0829-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 06/14/2016] [Indexed: 05/22/2023]
Abstract
BACKGROUND Molecular markers associated with relevant agronomic traits could significantly reduce the time and cost involved in developing new sugarcane varieties. Previous sugarcane genome-wide association analyses (GWAS) have found few molecular markers associated with relevant traits at plant-cane stage. The aim of this study was to establish an appropriate GWAS to find molecular markers associated with yield related traits consistent across harvesting seasons in a breeding population. Sugarcane clones were genotyped with DArT (Diversity Array Technology) and TRAP (Target Region Amplified Polymorphism) markers, and evaluated for cane yield (CY) and sugar content (SC) at two locations during three successive crop cycles. GWAS mapping was applied within a novel mixed-model framework accounting for population structure with Principal Component Analysis scores as random component. RESULTS A total of 43 markers significantly associated with CY in plant-cane, 42 in first ratoon, and 41 in second ratoon were detected. Out of these markers, 20 were associated with CY in 2 years. Additionally, 38 significant associations for SC were detected in plant-cane, 34 in first ratoon, and 47 in second ratoon. For SC, one marker-trait association was found significant for the 3 years of the study, while twelve markers presented association for 2 years. In the multi-QTL model several markers with large allelic substitution effect were found. Sequences of four DArT markers showed high similitude and e-value with coding sequences of Sorghum bicolor, confirming the high gene microlinearity between sorghum and sugarcane. CONCLUSIONS In contrast with other sugarcane GWAS studies reported earlier, the novel methodology to analyze multi-QTLs through successive crop cycles used in the present study allowed us to find several markers associated with relevant traits. Combining existing phenotypic trial data and genotypic DArT and TRAP marker characterizations within a GWAS approach including population structure as random covariates may prove to be highly successful. Moreover, sequences of DArT marker associated with the traits of interest were aligned in chromosomal regions where sorghum QTLs has previously been reported. This approach could be a valuable tool to assist the improvement of sugarcane and better supply sugarcane demand that has been projected for the upcoming decades.
Collapse
Affiliation(s)
- Josefina Racedo
- />Estación Experimental Agroindustrial Obispo Colombres (EEAOC)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Tecnología Agroindustrial del Noroeste Argentino (ITANOA), Av. William Cross 3150, Las Talitas, T4101XAC Tucumán Argentina
| | - Lucía Gutiérrez
- />Departamento de Biometría, Estadística y Cómputos, Facultad de Agronomía, Universidad de la República, Garzón 780, 12900 Montevideo, Uruguay
- />Agronomy Department, University of Wisconsin – Madison, 1575 Linden Dr., Madison, WI 53706 USA
| | - María Francisca Perera
- />Estación Experimental Agroindustrial Obispo Colombres (EEAOC)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Tecnología Agroindustrial del Noroeste Argentino (ITANOA), Av. William Cross 3150, Las Talitas, T4101XAC Tucumán Argentina
| | - Santiago Ostengo
- />Estación Experimental Agroindustrial Obispo Colombres (EEAOC)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Tecnología Agroindustrial del Noroeste Argentino (ITANOA), Av. William Cross 3150, Las Talitas, T4101XAC Tucumán Argentina
| | - Esteban Mariano Pardo
- />Estación Experimental Agroindustrial Obispo Colombres (EEAOC)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Tecnología Agroindustrial del Noroeste Argentino (ITANOA), Av. William Cross 3150, Las Talitas, T4101XAC Tucumán Argentina
| | - María Inés Cuenya
- />Estación Experimental Agroindustrial Obispo Colombres (EEAOC)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Tecnología Agroindustrial del Noroeste Argentino (ITANOA), Av. William Cross 3150, Las Talitas, T4101XAC Tucumán Argentina
| | - Bjorn Welin
- />Estación Experimental Agroindustrial Obispo Colombres (EEAOC)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Tecnología Agroindustrial del Noroeste Argentino (ITANOA), Av. William Cross 3150, Las Talitas, T4101XAC Tucumán Argentina
| | - Atilio Pedro Castagnaro
- />Estación Experimental Agroindustrial Obispo Colombres (EEAOC)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Tecnología Agroindustrial del Noroeste Argentino (ITANOA), Av. William Cross 3150, Las Talitas, T4101XAC Tucumán Argentina
| |
Collapse
|
32
|
Zhang J, Sharma A, Yu Q, Wang J, Li L, Zhu L, Zhang X, Chen Y, Ming R. Comparative structural analysis of Bru1 region homeologs in Saccharum spontaneum and S. officinarum. BMC Genomics 2016; 17:446. [PMID: 27287040 PMCID: PMC4902974 DOI: 10.1186/s12864-016-2817-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Accepted: 06/07/2016] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Sugarcane is a major sugar and biofuel crop, but genomic research and molecular breeding have lagged behind other major crops due to the complexity of auto-allopolyploid genomes. Sugarcane cultivars are frequently aneuploid with chromosome number ranging from 100 to 130, consisting of 70-80 % S. officinarum, 10-20 % S. spontaneum, and 10 % recombinants between these two species. Analysis of a genomic region in the progenitor autoploid genomes of sugarcane hybrid cultivars will reveal the nature and divergence of homologous chromosomes. RESULTS To investigate the origin and evolution of haplotypes in the Bru1 genomic regions in sugarcane cultivars, we identified two BAC clones from S. spontaneum and four from S. officinarum and compared to seven haplotype sequences from sugarcane hybrid R570. The results clarified the origin of seven homologous haplotypes in R570, four haplotypes originated from S. officinarum, two from S. spontaneum and one recombinant.. Retrotransposon insertions and sequences variations among the homologous haplotypes sequence divergence ranged from 18.2 % to 60.5 % with an average of 33.7 %. Gene content and gene structure were relatively well conserved among the homologous haplotypes. Exon splitting occurred in haplotypes of the hybrid genome but not in its progenitor genomes. Tajima's D analysis revealed that S. spontaneum hapotypes in the Bru1 genomic regions were under strong directional selection. Numerous inversions, deletions, insertions and translocations were found between haplotypes within each genome. CONCLUSIONS This is the first comparison among haplotypes of a modern sugarcane hybrid and its two progenitors. Tajima's D results emphasized the crucial role of this fungal disease resistance gene for enhancing the fitness of this species and indicating that the brown rust resistance gene in R570 is from S. spontaneum. Species-specific InDel, sequences similarity and phylogenetic analysis of homologous genes can be used for identifying the origin of S. spontaneum and S. officinarum haplotype in Saccharum hybrids. Comparison of exon splitting among the homologous haplotypes suggested that the genome rearrangements in Saccharum hybrids after hybridization. The combined minimum difference at 19.5 % among homologous chromosomes in S. officinarum would be sufficient for proper genome assembly of this autopolyploid genome. Retrotransposon insertions and sequences variations among the homologous haplotypes sequence divergence may allow sequencing and assembling the autopolyploid Saccharum genomes and the auto-allopolyploid hybrid genomes using whole genome shotgun sequencing.
Collapse
Affiliation(s)
- Jisen Zhang
- />FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian Province China
- />College of Life Sciences, Fujian Normal University, Fuzhou, 350108 China
- />Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
| | - Anupma Sharma
- />Texas A&M AgriLife Research, Department of Plant Pathology & Microbiology, Texas A&M University System, 17360 Coit Road, Dallas, TX 75252 USA
| | - Qingyi Yu
- />FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian Province China
- />Texas A&M AgriLife Research, Department of Plant Pathology & Microbiology, Texas A&M University System, 17360 Coit Road, Dallas, TX 75252 USA
| | - Jianping Wang
- />FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian Province China
- />Department of Agronomy, University of Florida, 2033 Mowry Road, Gainesville, FL 32610 USA
| | - Leiting Li
- />Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
- />College of Horticulture, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095 China
| | - Lin Zhu
- />Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
- />College of Plant Science, Jilin University, Changchun, Jilin 130062 China
| | - Xingtan Zhang
- />FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian Province China
| | - Youqiang Chen
- />College of Life Sciences, Fujian Normal University, Fuzhou, 350108 China
| | - Ray Ming
- />FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian Province China
- />Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
| |
Collapse
|
33
|
Singh RK, Banerjee N, Khan MS, Yadav S, Kumar S, Duttamajumder SK, Lal RJ, Patel JD, Guo H, Zhang D, Paterson AH. Identification of putative candidate genes for red rot resistance in sugarcane (Saccharum species hybrid) using LD-based association mapping. Mol Genet Genomics 2016; 291:1363-77. [DOI: 10.1007/s00438-016-1190-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 02/24/2016] [Indexed: 01/04/2023]
|
34
|
Song J, Yang X, Resende MFR, Neves LG, Todd J, Zhang J, Comstock JC, Wang J. Natural Allelic Variations in Highly Polyploidy Saccharum Complex. FRONTIERS IN PLANT SCIENCE 2016; 7:804. [PMID: 27375658 PMCID: PMC4896942 DOI: 10.3389/fpls.2016.00804] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Accepted: 05/23/2016] [Indexed: 05/20/2023]
Abstract
Sugarcane (Saccharum spp.) is an important sugar and biofuel crop with high polyploid and complex genomes. The Saccharum complex, comprised of Saccharum genus and a few related genera, are important genetic resources for sugarcane breeding. A large amount of natural variation exists within the Saccharum complex. Though understanding their allelic variation has been challenging, it is critical to dissect allelic structure and to identify the alleles controlling important traits in sugarcane. To characterize natural variations in Saccharum complex, a target enrichment sequencing approach was used to assay 12 representative germplasm accessions. In total, 55,946 highly efficient probes were designed based on the sorghum genome and sugarcane unigene set targeting a total of 6 Mb of the sugarcane genome. A pipeline specifically tailored for polyploid sequence variants and genotype calling was established. BWA-mem and sorghum genome approved to be an acceptable aligner and reference for sugarcane target enrichment sequence analysis, respectively. Genetic variations including 1,166,066 non-redundant SNPs, 150,421 InDels, 919 gene copy number variations, and 1,257 gene presence/absence variations were detected. SNPs from three different callers (Samtools, Freebayes, and GATK) were compared and the validation rates were nearly 90%. Based on the SNP loci of each accession and their ploidy levels, 999,258 single dosage SNPs were identified and most loci were estimated as largely homozygotes. An average of 34,397 haplotype blocks for each accession was inferred. The highest divergence time among the Saccharum spp. was estimated as 1.2 million years ago (MYA). Saccharum spp. diverged from Erianthus and Sorghum approximately 5 and 6 MYA, respectively. The target enrichment sequencing approach provided an effective way to discover and catalog natural allelic variation in highly polyploid or heterozygous genomes.
Collapse
Affiliation(s)
- Jian Song
- Agronomy Department, University of FloridaGainesville, FL, USA
- College of Life Sciences, Dezhou UniversityDezhou, China
| | - Xiping Yang
- Agronomy Department, University of FloridaGainesville, FL, USA
| | | | | | - James Todd
- Sugarcane Research Unit, United States Department of Agriculture-Agricultural Research ServiceHouma, LA, USA
- Sugarcane Field Station, United States Department of Agriculture-Agricultural Research Service, Canal PointFL, USA
| | - Jisen Zhang
- Center for Genomics and Biotechnology, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry UniversityFuzhou, China
| | - Jack C. Comstock
- Sugarcane Field Station, United States Department of Agriculture-Agricultural Research Service, Canal PointFL, USA
| | - Jianping Wang
- Agronomy Department, University of FloridaGainesville, FL, USA
- Center for Genomics and Biotechnology, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry UniversityFuzhou, China
- Plant Molecular and Biology Program, Genetics Institute, University of FloridaGainesville, FL, USA
- *Correspondence: Jianping Wang,
| |
Collapse
|
35
|
Hoang NV, Furtado A, Botha FC, Simmons BA, Henry RJ. Potential for Genetic Improvement of Sugarcane as a Source of Biomass for Biofuels. Front Bioeng Biotechnol 2015; 3:182. [PMID: 26636072 PMCID: PMC4646955 DOI: 10.3389/fbioe.2015.00182] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 10/26/2015] [Indexed: 11/13/2022] Open
Abstract
Sugarcane (Saccharum spp. hybrids) has great potential as a major feedstock for biofuel production worldwide. It is considered among the best options for producing biofuels today due to an exceptional biomass production capacity, high carbohydrate (sugar + fiber) content, and a favorable energy input/output ratio. To maximize the conversion of sugarcane biomass into biofuels, it is imperative to generate improved sugarcane varieties with better biomass degradability. However, unlike many diploid plants, where genetic tools are well developed, biotechnological improvement is hindered in sugarcane by our current limited understanding of the large and complex genome. Therefore, understanding the genetics of the key biofuel traits in sugarcane and optimization of sugarcane biomass composition will advance efficient conversion of sugarcane biomass into fermentable sugars for biofuel production. The large existing phenotypic variation in Saccharum germplasm and the availability of the current genomics technologies will allow biofuel traits to be characterized, the genetic basis of critical differences in biomass composition to be determined, and targets for improvement of sugarcane for biofuels to be established. Emerging options for genetic improvement of sugarcane for the use as a bioenergy crop are reviewed. This will better define the targets for potential genetic manipulation of sugarcane biomass composition for biofuels.
Collapse
Affiliation(s)
- Nam V. Hoang
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
- College of Agriculture and Forestry, Hue University, Hue, Vietnam
| | - Agnelo Furtado
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
| | - Frederik C. Botha
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
- Sugar Research Australia, Indooroopilly, QLD, Australia
| | - Blake A. Simmons
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
- Joint BioEnergy Institute, Emeryville, CA, USA
| | - Robert J. Henry
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
| |
Collapse
|
36
|
Huang Y, Wu J, Wang P, Lin Y, Fu C, Deng Z, Wang Q, Li Q, Chen R, Zhang M. Characterization of Chromosome Inheritance of the Intergeneric BC2 and BC3 Progeny between Saccharum spp. and Erianthus arundinaceus. PLoS One 2015. [PMID: 26196281 PMCID: PMC4510360 DOI: 10.1371/journal.pone.0133722] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Erianthus arundinaceus (E. arundinaceus) has many desirable agronomic traits for sugarcane improvement, such as high biomass, vigor, rationing ability, tolerance to drought, and water logging, as well as resistance to pests and disease. To investigate the introgression of the E. arundinaceus genome into sugarcane in the higher generations, intergeneric BC2 and BC3 progeny generated between Saccharum spp. and E. arundinaceus were studied using the genomic in situ hybridization (GISH) technique. The results showed that the BC2 and BC3 generations resulted from n + n chromosome transmission. Furthermore, chromosome translocation occurred at terminal fragments from the E. arundinaceus chromosome in some progeny of Saccharum spp. and E. arundinaceus. Notably, the translocated chromosomes could be stably transmitted to their progeny. This study illustrates the characterization of chromosome inheritance of the intergeneric BC2 and BC3 progeny between Saccharum spp. and E. arundinaceus. This work could provide more useful molecular cytogenetic information for the germplasm resources of E. arundinaceus, and may promote further understanding of the germplasm resources of E. arundinaceus for sugarcane breeders to accelerate its progress in sugarcane commercial breeding.
Collapse
Affiliation(s)
- Yongji Huang
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jiayun Wu
- Guangdong Key Laboratory of Sugarcane Improvement and Biorefinery, Guangzhou Sugarcane Industry Research Institute, Guangzhou, China
| | - Ping Wang
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yanquan Lin
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Cheng Fu
- Guangdong Key Laboratory of Sugarcane Improvement and Biorefinery, Guangzhou Sugarcane Industry Research Institute, Guangzhou, China
| | - Zuhu Deng
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
- Guangxi Collaborative Center for Sugarcane & Cane Sugar Industries, Guangxi, China
- * E-mail:
| | - Qinnan Wang
- Guangdong Key Laboratory of Sugarcane Improvement and Biorefinery, Guangzhou Sugarcane Industry Research Institute, Guangzhou, China
| | - Qiwei Li
- Guangdong Key Laboratory of Sugarcane Improvement and Biorefinery, Guangzhou Sugarcane Industry Research Institute, Guangzhou, China
| | - Rukai Chen
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Muqing Zhang
- Guangxi Collaborative Center for Sugarcane & Cane Sugar Industries, Guangxi, China
| |
Collapse
|
37
|
Gentile A, Dias LI, Mattos RS, Ferreira TH, Menossi M. MicroRNAs and drought responses in sugarcane. FRONTIERS IN PLANT SCIENCE 2015; 6:58. [PMID: 25755657 PMCID: PMC4337329 DOI: 10.3389/fpls.2015.00058] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 01/22/2015] [Indexed: 05/03/2023]
Abstract
There is a growing demand for renewable energy, and sugarcane is a promising bioenergy crop. In Brazil, the largest sugarcane producer in the world, sugarcane plantations are expanding into areas where severe droughts are common. Recent evidence has highlighted the role of miRNAs in regulating drought responses in several species, including sugarcane. This review summarizes the data from miRNA expression profiles observed in a wide array of experimental conditions using different sugarcane cultivars that differ in their tolerance to drought. We uncovered a complex regulation of sugarcane miRNAs in response to drought and discussed these data with the miRNA profiles observed in other plant species. The predicted miRNA targets revealed different transcription factors, proteins involved in tolerance to oxidative stress, cell modification, as well as hormone signaling. Some of these proteins might regulate sugarcane responses to drought, such as reduction of internode growth and shoot branching and increased leaf senescence. A better understanding on the regulatory network from miRNAs and their targets under drought stress has a great potential to contribute to sugarcane improvement, either as molecular markers as well as by using biotechnological approaches.
Collapse
Affiliation(s)
| | | | | | | | - Marcelo Menossi
- Laboratório de Genoma Funcional, Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de CampinasCampinas, São Paulo, Brazil
| |
Collapse
|
38
|
Wu J, Huang Y, Lin Y, Fu C, Liu S, Deng Z, Li Q, Huang Z, Chen R, Zhang M. Unexpected inheritance pattern of Erianthus arundinaceus chromosomes in the intergeneric progeny between Saccharum spp. and Erianthus arundinaceus. PLoS One 2014; 9:e110390. [PMID: 25310831 PMCID: PMC4195721 DOI: 10.1371/journal.pone.0110390] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 09/12/2014] [Indexed: 01/28/2023] Open
Abstract
Erianthus arundinaceus is a valuable source of agronomic traits for sugarcane improvement such as ratoonability, biomass, vigor, tolerance to drought and water logging, as well as resistance to pests and disease. To investigate the introgression of the E. arundinaceus genome into sugarcane, five intergeneric F1 hybrids between S. officinarum and E. arundinaceus and 13 of their BC1 progeny were studied using the genomic in situ hybridization (GISH) technique. In doing so, we assessed the chromosome composition and chromosome transmission in these plants. All F1 hybrids were aneuploidy, containing either 28 or 29 E. arundinaceus chromosomes. The number of E. arundinaceus chromosomes in nine of the BC1 progeny was less than or equal to 29. Unexpectedly, the number of E. arundinaceus chromosomes in the other four BC1 progeny was above 29, which was more than in their F1 female parents. This is the first cytogenetic evidence for an unexpected inheritance pattern of E. arundinaceus chromosomes in sugarcane. We pointed to several mechanisms that may be involved in generating more than 2n gametes in the BC1 progeny. Furthermore, the implication of these results for sugarcane breeding programs was discussed.
Collapse
Affiliation(s)
- Jiayun Wu
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
- Guangzhou Research Institute for Sugarcane Industry, Guangzhou, China
| | - Yongji Huang
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yanquan Lin
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Cheng Fu
- Guangzhou Research Institute for Sugarcane Industry, Guangzhou, China
| | - Shaomou Liu
- Guangzhou Research Institute for Sugarcane Industry, Guangzhou, China
| | - Zuhu Deng
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qiwei Li
- Guangzhou Research Institute for Sugarcane Industry, Guangzhou, China
| | - Zhongxing Huang
- Guangzhou Research Institute for Sugarcane Industry, Guangzhou, China
| | - Rukai Chen
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Muqing Zhang
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key lab for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| |
Collapse
|
39
|
Nishiyama MY, Ferreira SS, Tang PZ, Becker S, Pörtner-Taliana A, Souza GM. Full-length enriched cDNA libraries and ORFeome analysis of sugarcane hybrid and ancestor genotypes. PLoS One 2014; 9:e107351. [PMID: 25222706 PMCID: PMC4164538 DOI: 10.1371/journal.pone.0107351] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 08/14/2014] [Indexed: 11/18/2022] Open
Abstract
Sugarcane is a major crop used for food and bioenergy production. Modern cultivars are hybrids derived from crosses between Saccharum officinarum and Saccharum spontaneum. Hybrid cultivars combine favorable characteristics from ancestral species and contain a genome that is highly polyploid and aneuploid, containing 100–130 chromosomes. These complex genomes represent a huge challenge for molecular studies and for the development of biotechnological tools that can facilitate sugarcane improvement. Here, we describe full-length enriched cDNA libraries for Saccharum officinarum, Saccharum spontaneum, and one hybrid genotype (SP803280) and analyze the set of open reading frames (ORFs) in their genomes (i.e., their ORFeomes). We found 38,195 (19%) sugarcane-specific transcripts that did not match transcripts from other databases. Less than 1.6% of all transcripts were ancestor-specific (i.e., not expressed in SP803280). We also found 78,008 putative new sugarcane transcripts that were absent in the largest sugarcane expressed sequence tag database (SUCEST). Functional annotation showed a high frequency of protein kinases and stress-related proteins. We also detected natural antisense transcript expression, which mapped to 94% of all plant KEGG pathways; however, each genotype showed different pathways enriched in antisense transcripts. Our data appeared to cover 53.2% (17,563 genes) and 46.8% (937 transcription factors) of all sugarcane full-length genes and transcription factors, respectively. This work represents a significant advancement in defining the sugarcane ORFeome and will be useful for protein characterization, single nucleotide polymorphism and splicing variant identification, evolutionary and comparative studies, and sugarcane genome assembly and annotation.
Collapse
Affiliation(s)
| | | | - Pei-Zhong Tang
- ThermoFisher Scientific, Carlsbad, California, United States of America
| | - Scott Becker
- ThermoFisher Scientific, Carlsbad, California, United States of America
| | | | - Glaucia Mendes Souza
- Departamento de Bioquímica, Universidade de São Paulo, São Paulo, SP, Brazil
- * E-mail:
| |
Collapse
|
40
|
Debibakas S, Rocher S, Garsmeur O, Toubi L, Roques D, D’Hont A, Hoarau JY, Daugrois JH. Prospecting sugarcane resistance to Sugarcane yellow leaf virus by genome-wide association. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2014; 127:1719-32. [PMID: 24916990 PMCID: PMC4110414 DOI: 10.1007/s00122-014-2334-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 05/20/2014] [Indexed: 05/07/2023]
Abstract
Using GWAS approaches, we detected independent resistant markers in sugarcane towards a vectored virus disease. Based on comparative genomics, several candidate genes potentially involved in virus/aphid/plant interactions were pinpointed. Yellow leaf of sugarcane is an emerging viral disease whose causal agent is a Polerovirus, the Sugarcane yellow leaf virus (SCYLV) transmitted by aphids. To identify quantitative trait loci controlling resistance to yellow leaf which are of direct relevance for breeding, we undertook a genome-wide association study (GWAS) on a sugarcane cultivar panel (n = 189) representative of current breeding germplasm. This panel was fingerprinted with 3,949 polymorphic markers (DArT and AFLP). The panel was phenotyped for SCYLV infection in leaves and stalks in two trials for two crop cycles, under natural disease pressure prevalent in Guadeloupe. Mixed linear models including co-factors representing population structure fixed effects and pairwise kinship random effects provided an efficient control of the risk of inflated type-I error at a genome-wide level. Six independent markers were significantly detected in association with SCYLV resistance phenotype. These markers explained individually between 9 and 14 % of the disease variation of the cultivar panel. Their frequency in the panel was relatively low (8-20 %). Among them, two markers were detected repeatedly across the GWAS exercises based on the different disease resistance parameters. These two markers could be blasted on Sorghum bicolor genome and candidate genes potentially involved in plant-aphid or plant-virus interactions were localized in the vicinity of sorghum homologs of sugarcane markers. Our results illustrate the potential of GWAS approaches to prospect among sugarcane germplasm for accessions likely bearing resistance alleles of significant effect useful in breeding programs.
Collapse
Affiliation(s)
- S. Debibakas
- Université des Antilles et de la Guyane, 97157 Pointe-à-Pitre, Guadeloupe France
- CIRAD, UMR BGPI, 97170 Petit Bourg, Guadeloupe France
| | - S. Rocher
- CIRAD, UMR AGAP, 34398 Montpellier, France
- CIRAD, UMR AGAP, 97170 Petit Bourg, Guadeloupe France
| | | | - L. Toubi
- CIRAD, UMR AGAP, 97170 Petit Bourg, Guadeloupe France
| | - D. Roques
- CIRAD, UMR AGAP, 97170 Petit Bourg, Guadeloupe France
| | - A. D’Hont
- CIRAD, UMR AGAP, 34398 Montpellier, France
| | - J.-Y. Hoarau
- CIRAD, UMR AGAP, 97170 Petit Bourg, Guadeloupe France
| | | |
Collapse
|
41
|
Aitken KS, McNeil MD, Berkman PJ, Hermann S, Kilian A, Bundock PC, Li J. Comparative mapping in the Poaceae family reveals translocations in the complex polyploid genome of sugarcane. BMC PLANT BIOLOGY 2014; 14:190. [PMID: 25059596 PMCID: PMC4222257 DOI: 10.1186/s12870-014-0190-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 07/14/2014] [Indexed: 05/18/2023]
Abstract
BACKGROUND The understanding of sugarcane genetics has lagged behind that of other members of the Poaceae family such as wheat, rice, barley and sorghum mainly due to the complexity, size and polyploidization of the genome. We have used the genetic map of a sugarcane cultivar to generate a consensus genetic map to increase genome coverage for comparison to the sorghum genome. We have utilized the recently developed sugarcane DArT array to increase the marker density within the genetic map. The sequence of these DArT markers plus SNP and EST-SSR markers was then used to form a bridge to the sorghum genomic sequence by BLAST alignment to start to unravel the complex genomic architecture of sugarcane. RESULTS Comparative mapping revealed that certain sugarcane chromosomes show greater levels of synteny to sorghum than others. On a macrosyntenic level a good collinearity was observed between sugarcane and sorghum for 4 of the 8 homology groups (HGs). These 4 HGs were syntenic to four sorghum chromosomes with from 98% to 100% of these chromosomes covered by these linked markers. Four major chromosome rearrangements were identified between the other four sugarcane HGs and sorghum, two of which were condensations of chromosomes reducing the basic chromosome number of sugarcane from x = 10 to x = 8. This macro level of synteny was transferred to other members within the Poaceae family such as maize to uncover the important evolutionary relationships that exist between sugarcane and these species. CONCLUSIONS Comparative mapping of sugarcane to the sorghum genome has revealed new information on the genome structure of sugarcane which will help guide identification of important genes for use in sugarcane breeding. Furthermore of the four major chromosome rearrangements identified in this study, three were common to maize providing some evidence that chromosome reduction from a common paleo-ancestor of both maize and sugarcane was driven by the same translocation events seen in both species.
Collapse
Affiliation(s)
- Karen S Aitken
- CSIRO Plant Industry, Queensland Bioscience Precinct, 306 Carmody Rd, St Lucia, Brisbane 4067, QLD, Australia
| | - Meredith D McNeil
- CSIRO Plant Industry, Queensland Bioscience Precinct, 306 Carmody Rd, St Lucia, Brisbane 4067, QLD, Australia
| | - Paul J Berkman
- CSIRO Plant Industry, Queensland Bioscience Precinct, 306 Carmody Rd, St Lucia, Brisbane 4067, QLD, Australia
| | - Scott Hermann
- BSES Limited, 50 Meiers Road, Indooroopilly, Brisbane 4068, QLD, Australia
| | - Andrzej Kilian
- Diversity Arrays P/L, 1 Wilf Crane Crescent, Yarralumla, Canberra 2600, ACT, Australia
| | - Peter C Bundock
- Southern Cross University, Ctr Plant Conservation Genetics, Lismore 2480, NSW, Australia
| | - Jingchuan Li
- CSIRO Plant Industry, Queensland Bioscience Precinct, 306 Carmody Rd, St Lucia, Brisbane 4067, QLD, Australia
| |
Collapse
|
42
|
de Setta N, Monteiro-Vitorello CB, Metcalfe CJ, Cruz GMQ, Del Bem LE, Vicentini R, Nogueira FTS, Campos RA, Nunes SL, Turrini PCG, Vieira AP, Ochoa Cruz EA, Corrêa TCS, Hotta CT, de Mello Varani A, Vautrin S, da Trindade AS, de Mendonça Vilela M, Lembke CG, Sato PM, de Andrade RF, Nishiyama MY, Cardoso-Silva CB, Scortecci KC, Garcia AAF, Carneiro MS, Kim C, Paterson AH, Bergès H, D'Hont A, de Souza AP, Souza GM, Vincentz M, Kitajima JP, Van Sluys MA. Building the sugarcane genome for biotechnology and identifying evolutionary trends. BMC Genomics 2014; 15:540. [PMID: 24984568 PMCID: PMC4122759 DOI: 10.1186/1471-2164-15-540] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 06/19/2014] [Indexed: 01/24/2023] Open
Abstract
Background Sugarcane is the source of sugar in all tropical and subtropical countries and is becoming increasingly important for bio-based fuels. However, its large (10 Gb), polyploid, complex genome has hindered genome based breeding efforts. Here we release the largest and most diverse set of sugarcane genome sequences to date, as part of an on-going initiative to provide a sugarcane genomic information resource, with the ultimate goal of producing a gold standard genome. Results Three hundred and seventeen chiefly euchromatic BACs were sequenced. A reference set of one thousand four hundred manually-annotated protein-coding genes was generated. A small RNA collection and a RNA-seq library were used to explore expression patterns and the sRNA landscape. In the sucrose and starch metabolism pathway, 16 non-redundant enzyme-encoding genes were identified. One of the sucrose pathway genes, sucrose-6-phosphate phosphohydrolase, is duplicated in sugarcane and sorghum, but not in rice and maize. A diversity analysis of the s6pp duplication region revealed haplotype-structured sequence composition. Examination of hom(e)ologous loci indicate both sequence structural and sRNA landscape variation. A synteny analysis shows that the sugarcane genome has expanded relative to the sorghum genome, largely due to the presence of transposable elements and uncharacterized intergenic and intronic sequences. Conclusion This release of sugarcane genomic sequences will advance our understanding of sugarcane genetics and contribute to the development of molecular tools for breeding purposes and gene discovery. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-540) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Marie-Anne Van Sluys
- Departamento de Botânica - Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277, São Paulo 05508-090, SP, Brazil.
| |
Collapse
|
43
|
Validation of novel reference genes for reverse transcription quantitative real-time PCR in drought-stressed sugarcane. ScientificWorldJournal 2014; 2014:357052. [PMID: 24987730 PMCID: PMC4060590 DOI: 10.1155/2014/357052] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 04/20/2014] [Accepted: 04/21/2014] [Indexed: 12/22/2022] Open
Abstract
One of the most challenging aspects of RT-qPCR data analysis is the identification of reliable reference genes. Ideally, they should be neither induced nor repressed under different experimental conditions. To date, few reference genes have been adequately studied for sugarcane (Saccharum spp.) using statistical approaches. In this work, six candidate genes (αTUB, GAPDH, H1, SAMDC, UBQ, and 25S rRNA) were tested for gene expression normalization of sugarcane root tissues from drought-tolerant and -sensitive accessions after continuous dehydration (24 h). By undergoing different approaches (GeNorm, NormFinder, and BestKeeper), it was shown that most of them could be used in combinations for normalization purposes, with the exception of SAMDC. Nevertheless three of them (H1, αTUB, and GAPDH) were considered the most reliable reference genes. Their suitability as reference genes validated the expression profiles of two targets (AS and PFPα1), related to SuperSAGE unitags, in agreement with results revealed by previous in silico analysis. The other two sugarcane unitags (ACC oxidase and PIP1-1), after salt stress (100 mM NaCl), presented their expressions validated in the same way. In conclusion, these reference genes will be useful for dissecting gene expression in sugarcane roots under abiotic stress, especially in transcriptomic studies using SuperSAGE or RNAseq approaches.
Collapse
|
44
|
Kim C, Lee TH, Guo H, Chung SJ, Paterson AH, Kim DS, Lee GJ. Sequencing of transcriptomes from two Miscanthus species reveals functional specificity in rhizomes, and clarifies evolutionary relationships. BMC PLANT BIOLOGY 2014; 14:134. [PMID: 24884969 PMCID: PMC4046999 DOI: 10.1186/1471-2229-14-134] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 05/13/2014] [Indexed: 05/13/2023]
Abstract
BACKGROUND Miscanthus is a promising biomass crop for temperate regions. Despite the increasing interest in this plant, limited sequence information has constrained research into its biology, physiology, and breeding. The whole genome transcriptomes of M. sinensis and M. sacchariflorus presented in this study may provide good resources to understand functional compositions of two important Miscanthus genomes and their evolutionary relationships. RESULTS For M. sinensis, a total of 457,891 and 512,950 expressed sequence tags (ESTs) were produced from leaf and rhizome tissues, respectively, which were assembled into 12,166 contigs and 89,648 singletons for leaf, and 13,170 contigs and 112,138 singletons for rhizome. For M. sacchariflorus, a total of 288,806 and 267,952 ESTs from leaf and rhizome tissues, respectively, were assembled into 8,732 contigs and 66,881 singletons for leaf, and 8,104 contigs and 63,212 singletons for rhizome. Based on the distributions of synonymous nucleotide substitution (Ks), sorghum and Miscanthus diverged about 6.2 million years ago (MYA), Saccharum and Miscanthus diverged 4.6 MYA, and M. sinensis and M. sacchariflorus diverged 1.5 MYA. The pairwise alignment of predicted protein sequences from sorghum-Miscanthus and two Miscanthus species found a total of 43,770 and 35,818 nsSNPs, respectively. The impacts of striking mutations found by nsSNPs were much lower between sorghum and Miscanthus than those between the two Miscanthus species, perhaps as a consequence of the much higher level of gene duplication in Miscanthus and resulting ability to buffer essential functions against disturbance. CONCLUSIONS The ESTs generated in the present study represent a significant addition to Miscanthus functional genomics resources, permitting us to discover some candidate genes associated with enhanced biomass production. Ks distributions based on orthologous ESTs may serve as a guideline for future research into the evolution of Miscanthus species as well as its close relatives sorghum and Saccharum.
Collapse
Affiliation(s)
- Changsoo Kim
- Plant Genome Mapping Lab, University of Georgia, 111 Riverbend RD, Athens, GA 30602, USA
| | - Tae-Ho Lee
- Plant Genome Mapping Lab, University of Georgia, 111 Riverbend RD, Athens, GA 30602, USA
- Present address: Genomics Division, National Academy of Agricultural Science, Rural Development Administration, Suwon 441-707, South Korea
| | - Hui Guo
- Plant Genome Mapping Lab, University of Georgia, 111 Riverbend RD, Athens, GA 30602, USA
| | - Sung Jin Chung
- Department of Horticulture, Chungnam National University, Daejeon 305-764, South Korea
| | - Andrew H Paterson
- Plant Genome Mapping Lab, University of Georgia, 111 Riverbend RD, Athens, GA 30602, USA
| | - Do-Soon Kim
- Department of Plant Science, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, South Korea
| | - Geung-Joo Lee
- Department of Horticulture, Chungnam National University, Daejeon 305-764, South Korea
| |
Collapse
|
45
|
de Souza MCP, Silva JN, Almeida C. Differential detection of transposable elements between Saccharum species. Genet Mol Biol 2013; 36:408-12. [PMID: 24130449 PMCID: PMC3795168 DOI: 10.1590/s1415-47572013005000030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 05/03/2013] [Indexed: 11/22/2022] Open
Abstract
Cultivars of sugarcane (Saccharum) are hybrids between species S. officinarum (x = 10, 2n = 8x = 80) and S. spontaneum (x = 8, 2n = 5 – 16x = 40 – 128). These accessions have 100 to 130 chromosomes, 80–85% of which are derived from S. officinarum, 10–15% from S. spontaneum, and 5–10% are possible recombinants between the two genomes. The aim of this study was to analyze the repetition of DNA sequences in S. officinarum and S. spontaneum. For this purpose, genomic DNA from S. officinarum was digested with restriction enzymes and the fragments cloned. Sixty-eight fragments, approximately 500 bp, were cloned, sequenced and had their identity analyzed in NCBI, and in the rice, maize, and sorghum genome databases using BLAST. Twelve clones containing partial transposable elements, one single-copy control, one DNA repetitive clone control and two genome controls were analyzed by DNA hybridization on membrane, using genomic probes from S. officinarum and S. spontaneum. The hybridization experiment revealed that six TEs had a similar repetitive DNA pattern in the genomes of S. officinarum and S. spontaneum, while six TEs were more abundant in the genome of S. officinarum. We concluded that the species S. officinarum and S. spontaneum have differential accumulation LTR retrotransposon families, suggesting distinct insertion or modification patterns.
Collapse
|
46
|
Abstract
The sequencing of large and complex genomes of crop species, facilitated by new sequencing technologies and bioinformatic approaches, has provided new opportunities for crop improvement. Current challenges include understanding how genetic variation translates into phenotypic performance in the field.
Collapse
Affiliation(s)
- Michael W Bevan
- John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Cristobal Uauy
- John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| |
Collapse
|
47
|
Zhang J, Arro J, Chen Y, Ming R. Haplotype analysis of sucrose synthase gene family in three Saccharum species. BMC Genomics 2013; 14:314. [PMID: 23663250 PMCID: PMC3668173 DOI: 10.1186/1471-2164-14-314] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 04/29/2013] [Indexed: 11/10/2022] Open
Abstract
Background Sugarcane is an economically important crop contributing about 80% and 40% to the world sugar and ethanol production, respectively. The complicated genetics consequential to its complex polyploid genome, however, have impeded efforts to improve sugar yield and related important agronomic traits. Modern sugarcane cultivars are complex hybrids derived mainly from crosses among its progenitor species, S. officinarum and S. spontanuem, and to a lesser degree, S. robustom. Atypical of higher plants, sugarcane stores its photoassimilates as sucrose rather than as starch in its parenchymous stalk cells. In the sugar biosynthesis pathway, sucrose synthase (SuSy, UDP-glucose: D-fructose 2-a-D-glucosyltransferase, EC 2.4.1.13) is a key enzyme in the regulation of sucrose accumulation and partitioning by catalyzing the reversible conversion of sucrose and UDP into UDP-glucose and fructose. However, little is known about the sugarcane SuSy gene family members and hence no definitive studies have been reported regarding allelic diversity of SuSy gene families in Saccharum species. Results We identified and characterized a total of five sucrose synthase genes in the three sugarcane progenitor species through gene annotation and PCR haplotype analysis by analyzing 70 to 119 PCR fragments amplified from intron-containing target regions. We detected all but one (i.e. ScSuSy5) of ScSuSy transcripts in five tissue types of three Saccharum species. The average SNP frequency was one SNP per 108 bp, 81 bp, and 72 bp in S. officinarum, S. robustom, and S. spontanuem respectively. The average shared SNP is 15 between S. officinarum and S. robustom, 7 between S. officinarum and S. spontanuem , and 11 between S. robustom and S. spontanuem. We identified 27, 35, and 32 haplotypes from the five ScSuSy genes in S. officinarum, S. robustom, and S. spontanuem respectively. Also, 12, 11, and 9 protein sequences were translated from the haplotypes in S. officinarum, S. robustom, S. spontanuem, respectively. Phylogenetic analysis showed three separate clusters composed of SbSuSy1 and SbSuSy2, SbSuSy3 and SbSuSy5, and SbSuSy4. Conclusions The five members of the SuSy gene family evolved before the divergence of the genera in the tribe Andropogoneae at least 12 MYA. Each ScSuSy gene showed at least one non-synonymous substitution in SNP haplotypes. The SNP frequency is the lowest in S. officinarum, intermediate in S. robustum, and the highest in S. spontaneum, which may reflect the timing of the two rounds of whole genome duplication in these octoploids. The higher rate of shared SNP frequency between S. officinarum and S. robustum than between S. officinarum and in S. spontaneum confirmed that the speciation event separating S. officinarum and S. robustum occurred after their common ancestor diverged from S. spontaneum. The SNP and haplotype frequencies in three Saccharum species provide fundamental information for designing strategies to sequence these autopolyploid genomes.
Collapse
Affiliation(s)
- Jisen Zhang
- College of Life Sciences, Fujian Normal University, Fuzhou 350108, China
| | | | | | | |
Collapse
|
48
|
Zhu L, Zhang J, Chen Y, Pan H, Ming R. Identification and genes expression analysis of ATP-dependent phosphofructokinase family members among three Saccharum species. FUNCTIONAL PLANT BIOLOGY : FPB 2013; 40:369-378. [PMID: 32481114 DOI: 10.1071/fp12182] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2012] [Accepted: 10/27/2012] [Indexed: 06/11/2023]
Abstract
Sugarcane contributes ~80% of sugar production in the world and is an established biofuel crop. In working towards understanding the molecular basis of high sucrose accumulation, we have annotated and analysed the ATP-dependent phosphofructokinase (PFK) gene family that catalyses the phosphorylation of D-fructose 6-phosphate to D-fructose 1,6-bisphosphate. PFKs play an essential role in sucrose metabolism in plants and their expression patterns are unknown in sugarcane. In this study, based on the sorghum genome and sugarcane EST database, 10 PFK gene members were annotated and further verified by PCR using sugarcane genomic DNA. An unrooted phylogenetic tree was constructed with the deduced protein sequences of PFKs that were from the assembly of cDNA library of sugarcane and other plants. The results showed that gene duplication events and the retention rate after genome wide or segmental duplications occurred in higher frequency in monocots than in dicots and the genes in subgroup II of group III were likely originated from recent duplication events. Quantitative RT-PCR was performed to investigate the gene expression of 10 PFK genes in five tissues of three Saccharum species, including two developmental stages in leaves and three in culms. Of the PFK family members in sugarcane, ScPFK6, 7 and 8 appeared to be the primary isoforms based on the highly abundant expression of these three genes. ScPFK7 showed high expression level in the leaves, suggesting a potential role in sucrose metabolism. ScPFK8 had lower expression level in Saccharum officinarum L. than in the other two species, suggesting negative regulation of sucrose metabolism, which might have contributed to the high sugar content of S. officinarum. The genes in monocot specific subgroup II of group III, PFK7, 8 and 9, showed variation among the three Saccharum species, suggesting potential functional redundancy. Our results provide detailed annotation and analysis of the PFK gene family in sugarcane. Further elucidation of the role of ScPFK8 in the domestication process of sugarcane would be useful.
Collapse
Affiliation(s)
- Lin Zhu
- College of Plant Science, Jilin University, Changchun, Jilin, 130062, China
| | - Jisen Zhang
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Youqiang Chen
- College of Life Sciences, Fujian Normal University, Fuzhou, Fujian, 350108, China
| | - Hongyu Pan
- College of Plant Science, Jilin University, Changchun, Jilin, 130062, China
| | - Ray Ming
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| |
Collapse
|
49
|
Ortiz-Morea FA, Vicentini R, Silva GF, Silva EM, Carrer H, Rodrigues AP, Nogueira FT. Global analysis of the sugarcane microtranscriptome reveals a unique composition of small RNAs associated with axillary bud outgrowth. JOURNAL OF EXPERIMENTAL BOTANY 2013; 64:2307-20. [PMID: 23564956 PMCID: PMC3654421 DOI: 10.1093/jxb/ert089] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Axillary bud outgrowth determines shoot architecture and is under the control of endogenous hormones and a fine-tuned gene-expression network, which probably includes small RNAs (sRNAs). Although it is well known that sRNAs act broadly in plant development, our understanding about their roles in vegetative bud outgrowth remains limited. Moreover, the expression profiles of microRNAs (miRNAs) and their targets within axillary buds are largely unknown. Here, we employed sRNA next-generation sequencing as well as computational and gene-expression analysis to identify and quantify sRNAs and their targets in vegetative axillary buds of the biofuel crop sugarcane (Saccharum spp.). Computational analysis allowed the identification of 26 conserved miRNA families and two putative novel miRNAs, as well as a number of trans-acting small interfering RNAs. sRNAs associated with transposable elements and protein-encoding genes were similarly represented in both inactive and developing bud libraries. Conversely, sequencing and quantitative reverse transcription-PCR results revealed that specific miRNAs were differentially expressed in developing buds, and some correlated negatively with the expression of their targets at specific stages of axillary bud development. For instance, the expression patterns of miR159 and its target GAMYB suggested that they may play roles in regulating abscisic acid-signalling pathways during sugarcane bud outgrowth. Our work reveals, for the first time, differences in the composition and expression profiles of diverse sRNAs and targets between inactive and developing vegetative buds that, together with the endogenous balance of specific hormones, may be important in regulating axillary bud outgrowth.
Collapse
Affiliation(s)
- Fausto A. Ortiz-Morea
- Centro de Biotecnologia Agricola (CEBTEC), Escola Superior de Agricultura ‘Luiz de Queiroz’, (ESALQ)/USP, Piracicaba, SP, Brazil
- Laboratory of Molecular Genetics of Plant Development, Department of Genetics, Instituto de Biociências, Universidade Estadual Paulista (UNESP), Distrito de Rubião Jr.,17 s/n. CEP 18618–970 Botucatu, SP, Brazil
- These authors contributed equally to this work
| | - Renato Vicentini
- Centro de Biologia Molecular e Engenharia Genetica (CBMEG), Universidade Estadual de Campinas, Campinas, SP, Brazil
- These authors contributed equally to this work
| | - Geraldo F.F. Silva
- Centro de Biotecnologia Agricola (CEBTEC), Escola Superior de Agricultura ‘Luiz de Queiroz’, (ESALQ)/USP, Piracicaba, SP, Brazil
- Laboratory of Molecular Genetics of Plant Development, Department of Genetics, Instituto de Biociências, Universidade Estadual Paulista (UNESP), Distrito de Rubião Jr.,17 s/n. CEP 18618–970 Botucatu, SP, Brazil
| | - Eder M. Silva
- Laboratory of Molecular Genetics of Plant Development, Department of Genetics, Instituto de Biociências, Universidade Estadual Paulista (UNESP), Distrito de Rubião Jr.,17 s/n. CEP 18618–970 Botucatu, SP, Brazil
| | - Helaine Carrer
- Centro de Biotecnologia Agricola (CEBTEC), Escola Superior de Agricultura ‘Luiz de Queiroz’, (ESALQ)/USP, Piracicaba, SP, Brazil
| | - Ana P. Rodrigues
- Laboratory of Molecular Genetics of Plant Development, Department of Genetics, Instituto de Biociências, Universidade Estadual Paulista (UNESP), Distrito de Rubião Jr.,17 s/n. CEP 18618–970 Botucatu, SP, Brazil
| | - Fabio T.S. Nogueira
- Centro de Biotecnologia Agricola (CEBTEC), Escola Superior de Agricultura ‘Luiz de Queiroz’, (ESALQ)/USP, Piracicaba, SP, Brazil
- Laboratory of Molecular Genetics of Plant Development, Department of Genetics, Instituto de Biociências, Universidade Estadual Paulista (UNESP), Distrito de Rubião Jr.,17 s/n. CEP 18618–970 Botucatu, SP, Brazil
- To whom correspondence should be addressed.
| |
Collapse
|
50
|
Kim C, Lee TH, Compton RO, Robertson JS, Pierce GJ, Paterson AH. A genome-wide BAC end-sequence survey of sugarcane elucidates genome composition, and identifies BACs covering much of the euchromatin. PLANT MOLECULAR BIOLOGY 2013; 81:139-47. [PMID: 23161199 DOI: 10.1007/s11103-012-9987-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 11/07/2012] [Indexed: 05/09/2023]
Abstract
BAC-end sequences (BESs) of hybrid sugarcane cultivar R570 are presented. A total of 66,990 informative BESs were obtained from 43,874 BAC clones. Similarity search using a variety of public databases revealed that 13.5 and 42.8 % of BESs match known gene-coding and repeat regions, respectively. That 11.7 % of BESs are still unmatched to any nucleotide sequences in the current public databases despite the fact that a close relative, sorghum, is fully sequenced, indicates that there may be many sugarcane-specific or lineage-specific sequences. We found 1,742 simple sequence repeat motifs in 1,585 BESs, spanning 27,383 bp in length. As simple sequence repeat markers derived from BESs have some advantages over randomly generated markers, these may be particularly useful for comparing BAC-based physical maps with genetic maps. BES and overgo hybridization information was used for anchoring sugarcane BAC clones to the sorghum genome sequence. While sorghum and sugarcane have extensive similarity in terms of genomic structure, only 2,789 BACs (6.4 %) could be confidently anchored to the sorghum genome at the stringent threshold of having both-end information (BESs or overgos) within 300 Kb. This relatively low rate of anchoring may have been caused in part by small- or large-scale genomic rearrangements in the Saccharum genus after two rounds of whole genome duplication since its divergence from the sorghum lineage about 7.8 million years ago. Limiting consideration to only low-copy matches, 1,245 BACs were placed to 1,503 locations, covering ~198 Mb of the sorghum genome or about 78 % of the estimated 252 Mb of euchromatin. BESs and their analyses presented here may provide an early profile of the sugarcane genome as well as a basis for BAC-by-BAC sequencing of much of the basic gene set of sugarcane.
Collapse
Affiliation(s)
- Changsoo Kim
- Plant Genome Mapping Laboratory, University of Georgia, Athens, GA 30602, USA
| | | | | | | | | | | |
Collapse
|