1
|
Abdelrahman M, Gorafi YSA, Sulieman S, Jogaiah S, Gupta A, Tsujimoto H, Nguyen HT, Herrera-Estrella L, Tran LSP. Wild grass-derived alleles represent a genetic architecture for the resilience of modern common wheat to stresses. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:1685-1702. [PMID: 38935838 DOI: 10.1111/tpj.16887] [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: 12/15/2023] [Revised: 05/28/2024] [Accepted: 06/03/2024] [Indexed: 06/29/2024]
Abstract
This review explores the integration of wild grass-derived alleles into modern bread wheat breeding to tackle the challenges of climate change and increasing food demand. With a focus on synthetic hexaploid wheat, this review highlights the potential of genetic variability in wheat wild relatives, particularly Aegilops tauschii, for improving resilience to multifactorial stresses like drought, heat, and salinity. The evolutionary journey of wheat (Triticum spp.) from diploid to hexaploid species is examined, revealing significant genetic contributions from wild grasses. We also emphasize the importance of understanding incomplete lineage sorting in the genomic evolution of wheat. Grasping this information is crucial as it can guide breeders in selecting the appropriate alleles from the gene pool of wild relatives to incorporate into modern wheat varieties. This approach improves the precision of phylogenetic relationships and increases the overall effectiveness of breeding strategies. This review also addresses the challenges in utilizing the wheat wild genetic resources, such as the linkage drag and cross-compatibility issues. Finally, we culminate the review with future perspectives, advocating for a combined approach of high-throughput phenotyping tools and advanced genomic techniques to comprehensively understand the genetic and regulatory architectures of wheat under stress conditions, paving the way for more precise and efficient breeding strategies.
Collapse
Affiliation(s)
- Mostafa Abdelrahman
- Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, 79409, Texas, USA
| | - Yasir Serag Alnor Gorafi
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kitashirakawa, 606-8502, Kyoto, Japan
| | - Saad Sulieman
- Department of Agronomy, Faculty of Agriculture, University of Khartoum, Khartoum North, 13314, Sudan
| | - Sudisha Jogaiah
- Department of Environmental Science, Central University of Kerala, Periye, Kasaragod, 671316, Kerala, India
| | - Aarti Gupta
- Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, 79409, Texas, USA
| | - Hisashi Tsujimoto
- Arid Land Research Center, Tottori University, Tottori, 680-0001, Japan
| | - Henry T Nguyen
- Division of Plant Sciences and Technology, University of Missouri, Columbia, 65211, Missouri, USA
| | - Luis Herrera-Estrella
- Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, 79409, Texas, USA
- Unidad de Genomica Avanzada, Centro de Investigación y de Estudios Avanzados del Intituto Politécnico Nacional, Irapuato, 36821, Mexico
| | - Lam-Son Phan Tran
- Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, 79409, Texas, USA
| |
Collapse
|
2
|
Zhao Y, Dong Z, Miao J, Liu Q, Ma C, Tian X, He J, Bi H, Yao W, Li T, Gill HS, Zhang Z, Cao A, Liu B, Li H, Sehgal SK, Liu W. Pm57 from Aegilops searsii encodes a tandem kinase protein and confers wheat powdery mildew resistance. Nat Commun 2024; 15:4796. [PMID: 38839783 PMCID: PMC11153570 DOI: 10.1038/s41467-024-49257-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 05/29/2024] [Indexed: 06/07/2024] Open
Abstract
Powdery mildew is a devastating disease that affects wheat yield and quality. Wheat wild relatives represent valuable sources of disease resistance genes. Cloning and characterization of these genes will facilitate their incorporation into wheat breeding programs. Here, we report the cloning of Pm57, a wheat powdery mildew resistance gene from Aegilops searsii. It encodes a tandem kinase protein with putative kinase-pseudokinase domains followed by a von Willebrand factor A domain (WTK-vWA), being ortholog of Lr9 that mediates wheat leaf rust resistance. The resistance function of Pm57 is validated via independent mutants, gene silencing, and transgenic assays. Stable Pm57 transgenic wheat lines and introgression lines exhibit high levels of all-stage resistance to diverse isolates of the Bgt fungus, and no negative impacts on agronomic parameters are observed in our experimental set-up. Our findings highlight the emerging role of kinase fusion proteins in plant disease resistance and provide a valuable gene for wheat breeding.
Collapse
Affiliation(s)
- Yue Zhao
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Zhenjie Dong
- College of Agronomy, Nanjing Agricultural University, Nanjing, 210000, China
| | - Jingnan Miao
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Qianwen Liu
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Chao Ma
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xiubin Tian
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Jinqiu He
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Huihui Bi
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Wen Yao
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Tao Li
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Harsimardeep S Gill
- Department of Agronomy, Horticulture and Plant Science, South Dakota State University, Brookings, SD, 57007, USA
| | - Zhibin Zhang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Aizhong Cao
- College of Agronomy, Nanjing Agricultural University, Nanjing, 210000, China
| | - Bao Liu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Huanhuan Li
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Sunish K Sehgal
- Department of Agronomy, Horticulture and Plant Science, South Dakota State University, Brookings, SD, 57007, USA.
| | - Wenxuan Liu
- State Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China.
| |
Collapse
|
3
|
Xie P, Wu Y, Xie Q. Evolution of cereal floral architecture and threshability. TRENDS IN PLANT SCIENCE 2023; 28:1438-1450. [PMID: 37673701 DOI: 10.1016/j.tplants.2023.08.003] [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: 11/14/2022] [Revised: 06/07/2023] [Accepted: 08/04/2023] [Indexed: 09/08/2023]
Abstract
Hulled grains, while providing natural protection for seeds, pose a challenge to manual threshing due to the pair of glumes tightly encasing them. Based on natural evolution and artificial domestication, gramineous crops evolved various hull-like floral organs. Recently, progress has been made in uncovering novel domesticated genes associated with cereal threshability and deciphering common regulatory modules pertinent to the specification of hull-like floral organs. Here we review morphological similarities, principal regulators, and common mechanisms implicated in the easy-threshing traits of crops. Understanding the shared and unique features in the developmental process of cereal threshability may not only shed light on the convergent evolution of cereals but also facilitate the de novo domestication of wild cereal germplasm resources through genome-editing technologies.
Collapse
Affiliation(s)
- Peng Xie
- Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, P. R. China
| | - Yaorong Wu
- Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, P. R. China
| | - Qi Xie
- Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, P. R. China; State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding, National Center of Technology Innovation for Maize, Syngenta Group China, Beijing 102206, China; University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
| |
Collapse
|
4
|
Wang Z, Miao L, Chen Y, Peng H, Ni Z, Sun Q, Guo W. Deciphering the evolution and complexity of wheat germplasm from a genomic perspective. J Genet Genomics 2023; 50:846-860. [PMID: 37611848 DOI: 10.1016/j.jgg.2023.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/29/2023] [Accepted: 08/09/2023] [Indexed: 08/25/2023]
Abstract
Bread wheat provides an essential fraction of the daily calorific intake for humanity. Due to its huge and complex genome, progress in studying on the wheat genome is substantially trailed behind those of the other two major crops, rice and maize, for at least a decade. With rapid advances in genome assembling and reduced cost of high-throughput sequencing, emerging de novo genome assemblies of wheat and whole-genome sequencing data are leading to a paradigm shift in wheat research. Here, we review recent progress in dissecting the complex genome and germplasm evolution of wheat since the release of the first high-quality wheat genome. New insights have been gained in the evolution of wheat germplasm during domestication and modern breeding progress, genomic variations at multiple scales contributing to the diversity of wheat germplasm, and complex transcriptional and epigenetic regulations of functional genes in polyploid wheat. Genomics databases and bioinformatics tools meeting the urgent needs of wheat genomics research are also summarized. The ever-increasing omics data, along with advanced tools and well-structured databases, are expected to accelerate deciphering the germplasm and gene resources in wheat for future breeding advances.
Collapse
Affiliation(s)
- Zihao Wang
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Lingfeng Miao
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Yongming Chen
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Huiru Peng
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Zhongfu Ni
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Qixin Sun
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Weilong Guo
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China.
| |
Collapse
|
5
|
Saripalli G, Adhikari L, Amos C, Kibriya A, Ahmed HI, Heuberger M, Raupp J, Athiyannan N, Wicker T, Abrouk M, Wallace S, Hosseinirad S, Chhuneja P, Livesay J, Rawat N, Krattinger SG, Poland J, Tiwari V. Integration of genetic and genomics resources in einkorn wheat enables precision mapping of important traits. Commun Biol 2023; 6:835. [PMID: 37573415 PMCID: PMC10423216 DOI: 10.1038/s42003-023-05189-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 07/26/2023] [Indexed: 08/14/2023] Open
Abstract
Einkorn wheat (Triticum monococcum) is an ancient grain crop and a close relative of the diploid progenitor (T. urartu) of polyploid wheat. It is the only diploid wheat species having both domesticated and wild forms and therefore provides an excellent system to identify domestication genes and genes for traits of interest to utilize in wheat improvement. Here, we leverage genomic advancements for einkorn wheat using an einkorn reference genome assembly combined with skim-sequencing of a large genetic population of 812 recombinant inbred lines (RILs) developed from a cross between a wild and a domesticated T. monococcum accession. We identify 15,919 crossover breakpoints delimited to a median and average interval of 114 Kbp and 219 Kbp, respectively. This high-resolution mapping resource enables us to perform fine-scale mapping of one qualitative (red coleoptile) and one quantitative (spikelet number per spike) trait, resulting in the identification of small physical intervals (400 Kb to 700 Kb) with a limited number of candidate genes. Furthermore, an important domestication locus for brittle rachis is also identified on chromosome 7A. This resource presents an exciting route to perform trait discovery in diploid wheat for agronomically important traits and their further deployment in einkorn as well as tetraploid pasta wheat and hexaploid bread wheat cultivars.
Collapse
Affiliation(s)
- Gautam Saripalli
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, 20783, USA
| | - Laxman Adhikari
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Cameron Amos
- Department of Plant Pathology, Kansas State University, Manhattan, KS, 66506, USA
| | - Ashraf Kibriya
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Hanin Ibrahim Ahmed
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Matthias Heuberger
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - John Raupp
- Wheat Genetics Resource Center and Department of Plant Pathology, Kansas State University, Manhattan, KS, 66506, USA
| | - Naveenkumar Athiyannan
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Thomas Wicker
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Michael Abrouk
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Sydney Wallace
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, 20783, USA
| | - Seyedali Hosseinirad
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, 20783, USA
| | - Parveen Chhuneja
- School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, 141004, Punjab, India
| | - Janelle Livesay
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, 20783, USA
| | - Nidhi Rawat
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, 20783, USA
| | - Simon G Krattinger
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Jesse Poland
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
- Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
| | - Vijay Tiwari
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, 20783, USA.
| |
Collapse
|
6
|
Lev-Mirom Y, Distelfeld A. Where was wheat domesticated? NATURE PLANTS 2023; 9:1201-1202. [PMID: 37488266 DOI: 10.1038/s41477-023-01467-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 06/25/2023] [Indexed: 07/26/2023]
Affiliation(s)
- Yael Lev-Mirom
- Department of Evolutionary and Environmental Biology, Faculty of Natural Sciences and the Institute of Evolution, University of Haifa, Haifa, Israel
| | - Assaf Distelfeld
- Department of Evolutionary and Environmental Biology, Faculty of Natural Sciences and the Institute of Evolution, University of Haifa, Haifa, Israel.
| |
Collapse
|
7
|
Peleg Z, Abbo S, Gopher A. When half is more than the whole: Wheat domestication syndrome reconsidered. Evol Appl 2022; 15:2002-2009. [PMID: 36540632 PMCID: PMC9753826 DOI: 10.1111/eva.13472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/07/2022] [Accepted: 08/15/2022] [Indexed: 11/27/2022] Open
Abstract
Two opposing models currently dominate Near Eastern plant domestication research. The core area-one event model depicts a knowledge-based, conscious, geographically centered, rapid single-event domestication, while the protracted-autonomous model emphasizes a noncentered, millennia-long process based on unconscious dynamics. The latter model relies, in part, on quantitative depictions of diachronic changes (in archaeological remains) in proportions of spikelet shattering to nonshattering, towards full dominance of the nonshattering (domesticated) phenotypes in cultivated cereal populations. Recent wild wheat genome assembly suggests that shattering and nonshattering spikelets may originate from the same (individual) genotype. Therefore, their proportions among archaeobotanical assemblages cannot reliably describe the presumed protracted-selection dynamics underlying wheat domestication. This calls for a reappraisal of the "domestication syndrome" concept associated with cereal domestication.
Collapse
Affiliation(s)
- Zvi Peleg
- Robert H. Smith Institute of Plant Sciences and Genetics in AgricultureThe Hebrew University of JerusalemRehovotIsrael
| | - Shahal Abbo
- Robert H. Smith Institute of Plant Sciences and Genetics in AgricultureThe Hebrew University of JerusalemRehovotIsrael
| | - Avi Gopher
- Sonia and Marco Nadler Institute of ArchaeologyTel‐Aviv UniversityRamat AvivIsrael
| |
Collapse
|
8
|
Kumar K, Mandal SN, Pradhan B, Kaur P, Kaur K, Neelam K. From Evolution to Revolution: Accelerating Crop Domestication through Genome Editing. PLANT & CELL PHYSIOLOGY 2022; 63:1607-1623. [PMID: 36018059 DOI: 10.1093/pcp/pcac124] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Crop domestication has a tremendous impact on socioeconomic conditions and human civilization. Modern cultivars were domesticated from their wild progenitors thousands of years ago by the selection of natural variation by humans. New cultivars are being developed by crossing two or more compatible individuals. But the limited genetic diversity in the cultivars severely affects the yield and renders the crop susceptible to many biotic and abiotic stresses. Crop wild relatives (CWRs) are the rich reservoir for many valuable agronomic traits. The incorporation of useful genes from CWR is one of the sustainable approaches for enriching the gene pool of cultivated crops. However, CWRs are not suited for urban and intensive cultivation because of several undesirable traits. Researchers have begun to study the domestication traits in the CWRs and modify them using genome-editing tools to make them suitable for extensive cultivation. Growing evidence has shown that modification in these genes is not sufficient to bring the desired change in the neodomesticated crop. However, the other dynamic genetic factors such as microRNAs (miRNAs), transposable elements, cis-regulatory elements and epigenetic changes have reshaped the domesticated crops. The creation of allelic series for many valuable domestication traits through genome editing holds great potential for the accelerated development of neodomesticated crops. The present review describes the current understanding of the genetics of domestication traits that are responsible for the agricultural revolution. The targeted mutagenesis in these domestication genes via clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 could be used for the rapid domestication of CWRs.
Collapse
Affiliation(s)
- Kishor Kumar
- Faculty Centre for Integrated Rural Development and Management, Ramakrishna Mission Vivekananda Educational and Research Institute, Narendrapur, Kolkata 700103, India
| | - Swarupa Nanda Mandal
- Department of Genetics and Plant Breeding, Bidhan Chandra Krishi Viswavidyalaya, Extended Campus, Burdwan, West Bengal 713101, India
- Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79415, USA
| | - Bhubaneswar Pradhan
- Faculty Centre for Integrated Rural Development and Management, Ramakrishna Mission Vivekananda Educational and Research Institute, Narendrapur, Kolkata 700103, India
| | - Pavneet Kaur
- School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, Punjab 141004, India
| | - Karminderbir Kaur
- School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, Punjab 141004, India
| | - Kumari Neelam
- School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, Punjab 141004, India
| |
Collapse
|
9
|
Pei H, Teng W, Gao L, Gao H, Ren X, Liu Y, Jia J, Tong Y, Wang Y, Lu Z. Low-affinity SPL binding sites contribute to subgenome expression divergence in allohexaploid wheat. SCIENCE CHINA LIFE SCIENCES 2022; 66:819-834. [PMID: 36417050 DOI: 10.1007/s11427-022-2202-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 09/22/2022] [Indexed: 11/24/2022]
Abstract
Expression divergence caused by genetic variation and crosstalks among subgenomes of the allohexaploid bread wheat (Triticum aestivum. L., BBAADD) is hypothesized to increase its adaptability and/or plasticity. However, the molecular basis of expression divergence remains unclear. Squamosa promoter-binding protein-like (SPL) transcription factors are critical for a wide array of biological processes. In this study, we constructed expression regulatory networks by combining DAP-seq for 40 SPLs, ATAC-seq, and RNA-seq. Our findings indicate that a group of low-affinity SPL binding regions (SBRs) were targeted by diverse SPLs and caused different sequence preferences around the core GTAC motif. The SBRs including the low-affinity ones are evolutionarily conserved, enriched GWAS signals related to important agricultural traits. However, those SBRs are highly diversified among the cis-regulatory regions (CREs) of syntenic genes, with less than 8% SBRs coexisting in triad genes, suggesting that CRE variations are critical for subgenome differentiations. Knocking out of TaSPL7A/B/D and TaSPL15A/B/D subfamily further proved that both high- and low-affinity SBRs played critical roles in the differential expression of genes regulating tiller number and spike sizes. Our results have provided baseline data for downstream networks of SPLs and wheat improvements and revealed that CRE variations are critical sources for subgenome divergence in the allohexaploid wheat.
Collapse
|
10
|
Akagi T, Jung K, Masuda K, Shimizu KK. Polyploidy before and after domestication of crop species. CURRENT OPINION IN PLANT BIOLOGY 2022; 69:102255. [PMID: 35870416 DOI: 10.1016/j.pbi.2022.102255] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/01/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
Recent advances in the genomics of polyploid species answer some of the long-standing questions about the role of polyploidy in crop species. Here, we summarize the current literature to reexamine scenarios in which polyploidy played a role both before and after domestication. The prevalence of polyploidy can help to explain environmental robustness in agroecosystems. This review also clarifies the molecular basis of some agriculturally advantageous traits of polyploid crops, including yield increments in polyploid cotton via subfunctionalization, modification of a separated sexuality to selfing in polyploid persimmon via neofunctionalization, and transition to a selfing system via nonfunctionalization combined with epistatic interaction between duplicated S-loci. The rapid progress in genomics and genetics is discussed along with how this will facilitate functional studies of understudied polyploid crop species.
Collapse
Affiliation(s)
- Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan.
| | - Katharina Jung
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, 8057 Zürich, Switzerland
| | - Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Kentaro K Shimizu
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, 8057 Zürich, Switzerland; Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, 244-0813 Totsuka-ward, Yokohama, Japan.
| |
Collapse
|
11
|
Vavilova VY, Konopatskaia ID, Blinov AG, Kondratenko EY, Kruchinina YV, Goncharov NP. Genetic Variability of Btr1 Genes in Tetraploid Wheat Species and Aegilops speltoides Tausch. RUSS J GENET+ 2022. [DOI: 10.1134/s1022795422060138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
12
|
Cross A, Li JB, Waugh R, Golicz AA, Pourkheirandish M. Grain dispersal mechanism in cereals arose from a genome duplication followed by changes in spatial expression of genes involved in pollen development. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2022; 135:1263-1277. [PMID: 35192007 PMCID: PMC9033732 DOI: 10.1007/s00122-022-04029-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 01/04/2022] [Indexed: 05/31/2023]
Abstract
KEY MESSAGE Grain disarticulation in wild progenitor of wheat and barley evolved through a local duplication event followed by neo-functionalization resulting from changes in location of gene expression. One of the most critical events in the process of cereal domestication was the loss of the natural mode of grain dispersal. Grain dispersal in barley is controlled by two major genes, Btr1 and Btr2, which affect the thickness of cell walls around the disarticulation zone. The barley genome also encodes Btr1-like and Btr2-like genes, which have been shown to be the ancestral copies. While Btr and Btr-like genes are non-redundant, the biological function of Btr-like genes is unknown. We explored the potential biological role of the Btr-like genes by surveying their expression profile across 212 publicly available transcriptome datasets representing diverse organs, developmental stages and stress conditions. We found that Btr1-like and Btr2-like are expressed exclusively in immature anther samples throughout Prophase I of meiosis within the meiocyte. The similar and restricted expression profile of these two genes suggests they are involved in a common biological function. Further analysis revealed 141 genes co-expressed with Btr1-like and 122 genes co-expressed with Btr2-like, with 105 genes in common, supporting Btr-like genes involvement in a shared molecular pathway. We hypothesize that the Btr-like genes play a crucial role in pollen development by facilitating the formation of the callose wall around the meiocyte or in the secretion of callase by the tapetum. Our data suggest that Btr genes retained an ancestral function in cell wall modification and gained a new role in grain dispersal due to changes in their spatial expression becoming spike specific after gene duplication.
Collapse
Affiliation(s)
- Arthur Cross
- Faculty of Veterinary and Agriculture, The University of Melbourne, Parkville, 3010, Australia
| | - John B Li
- Faculty of Veterinary and Agriculture, The University of Melbourne, Parkville, 3010, Australia
| | - Robbie Waugh
- Division of Plant Sciences, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, Scotland, UK
| | - Agnieszka A Golicz
- Faculty of Veterinary and Agriculture, The University of Melbourne, Parkville, 3010, Australia.
- Department of Plant Breeding, IFZ Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University Gießen, Gießen, Germany.
| | | |
Collapse
|
13
|
Tao X, Liu B, Dou Q. The Kengyiliahirsuta karyotype polymorphisms as revealed by FISH with tandem repeats and single-gene probes. COMPARATIVE CYTOGENETICS 2021; 15:375-392. [PMID: 34804380 PMCID: PMC8580955 DOI: 10.3897/compcytogen.v15.i4.71525] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Kengyiliahirsuta (Keng, 1959) J. L. Yang, C. Yen et B. R. Baum, 1992, a perennial hexaploidy species, is a wild relative species to wheat with great potential for wheat improvement and domestication. The genome structure and cross-species homoeology of K.hirsuta chromosomes with wheat were assayed using 14 single-gene probes covering all seven homoeologous groups, and four repetitive sequence probes 45S rDNA, 5S rDNA, pAs1, and (AAG)10 by FISH. Each chromosome of K.hirsuta was well characterized by homoeological determination and repeats distribution patterns. The synteny of chromosomes was strongly conserved in the St genome, whereas synteny of the Y and P genomes was more distorted. The collinearity of 1Y, 2Y, 3Y and 7Y might be interrupted in the Y genome. A new 5S rDNA site on 2Y might be translocated from 1Y. The short arm of 3Y might involve translocated segments from 7Y. The 7 Y was identified as involving a pericentric inversion. A reciprocal translocation between 2P and 4P, and tentative structural aberrations in the subtelomeric region of 1PL and 4PL, were observed in the P genome. Chromosome polymorphisms, which were mostly characterized by repeats amplification and deletion, varied between chromosomes, genomes, and different populations. However, two translocations involving a P genome segmental in 3YL and a non-Robertsonial reciprocal translocation between 4Y and 3P were identified in two independent populations. Moreover, the proportion of heterozygous karyotypes reached almost 35% in all materials, and almost 80% in the specific population. These results provide new insights into the genome organization of K.hirsuta and will facilitate genome dissection and germplasm utilization of this species.
Collapse
Affiliation(s)
- Xiaoyan Tao
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Bo Liu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Quanwen Dou
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Key Laboratory of Crop Molecular Breeding, Qinghai Province, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| |
Collapse
|
14
|
Liang Y, Liu HJ, Yan J, Tian F. Natural Variation in Crops: Realized Understanding, Continuing Promise. ANNUAL REVIEW OF PLANT BIOLOGY 2021; 72:357-385. [PMID: 33481630 DOI: 10.1146/annurev-arplant-080720-090632] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Crops feed the world's population and shape human civilization. The improvement of crop productivity has been ongoing for almost 10,000 years and has evolved from an experience-based to a knowledge-driven practice over the past three decades. Natural alleles and their reshuffling are long-standing genetic changes that affect how crops respond to various environmental conditions and agricultural practices. Decoding the genetic basis of natural variation is central to understanding crop evolution and, in turn, improving crop breeding. Here, we review current advances in the approaches used to map the causal alleles of natural variation, provide refined insights into the genetics and evolution of natural variation, and outline how this knowledge promises to drive the development of sustainable agriculture under the dome of emerging technologies.
Collapse
Affiliation(s)
- Yameng Liang
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Biology and Genetic Improvement of Maize (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; ,
| | - Hai-Jun Liu
- Gregor Mendel Institute, Austrian Academy of Sciences, Vienna BioCenter, 1030 Vienna, Austria;
| | - Jianbing Yan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China;
| | - Feng Tian
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Biology and Genetic Improvement of Maize (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; ,
| |
Collapse
|
15
|
Zeng X, Chen G, Wang L, Tagiri A, Kikuchi S, Sassa H, Komatsuda T. The unique disarticulation layer formed in the rachis of Aegilops longissima probably results from the spatial co-expression of Btr1 and Btr2. ANNALS OF BOTANY 2021; 127:297-304. [PMID: 32766735 PMCID: PMC7872126 DOI: 10.1093/aob/mcaa147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 05/31/2023]
Abstract
BACKGROUND AND AIMS The brittle rachis trait is a feature of many wild grasses, particularly within the tribe Triticeae. Wild Hordeum and Triticum species form a disarticulation layer above the rachis node, resulting in the production of wedge-type dispersal units. In Aegilops longissima, only one or two of the nodes in the central portion of its rachis are brittle. In Triticeae species, the formation of a disarticulation layer above the rachis node requires the co-transcription of the two dominant and complementary genes Btr1 and Btr2. This study aims to establish whether homologues of Btr1 and/or Btr2 underlie the unusual brittle rachis phenotype observed in Ae. longissima. METHODS Scanning electron microscopy was used to examine the disarticulation surfaces. Quantitative RT-PCR and RNA in situ hybridization experiments were used to identify gene expression in the immature inflorescence. KEY RESULTS Analysis based on scanning electron microscopy was able to demonstrate that the disarticulation surfaces formed in the Ae. longissima rachis are morphologically indistinguishable from those formed in the rachises of wild Hordeum and Triticum species. RNA in situ hybridization showed that in the immature Ae. longissima inflorescence, the intensity of Btr1 transcription varied from high at the rachis base to low at its apex, while that of Btr2 was limited to the nodes in the central to distal portion of the rachis. CONCLUSIONS The disarticulation pattern shown by Ae. longissima results from the limitation of Btr1 and Btr2 co-expression to nodes lying in the centre of the rachis.
Collapse
Affiliation(s)
- Xiaoxue Zeng
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| | - Gang Chen
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| | - Lei Wang
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Akemi Tagiri
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Shinji Kikuchi
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| | - Hidenori Sassa
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| | - Takao Komatsuda
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| |
Collapse
|
16
|
Kellogg EA. The rachis cannot hold, plants fall apart. A commentary on: 'The unique disarticulation layer formed in the rachis of Aegilops longissima likely results from the spatial co-expression of Btr1 and Btr2'. ANNALS OF BOTANY 2021; 127:vi-vii. [PMID: 33336239 PMCID: PMC7872103 DOI: 10.1093/aob/mcaa194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This article comments on: Xiaoxue Zeng, Gang Chen, Lei Wang, Akemi Tagiri, Shinji Kikuchi, Hidenori Sassa and Takao Komatsuda, The unique disarticulation layer formed in the rachis of Aegilops longissima probably results from the spatial co-expression of Btr1 and Btr2, Annals of Botany, Volume 127, Issue 3, 16 February 2021, Pages 297–304, https://doi.org/10.1093/aob/mcaa147
Collapse
|
17
|
Zeng X, Tagiri A, Kikuchi S, Sassa H, Komatsuda T. The Ectopic Expression of Btr2 in Aegilops tauschii Switches the Disarticulation Layer From Above to Below the Rachis Node. FRONTIERS IN PLANT SCIENCE 2020; 11:582622. [PMID: 33240300 PMCID: PMC7680762 DOI: 10.3389/fpls.2020.582622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/13/2020] [Indexed: 05/31/2023]
Abstract
Seed dispersal among wild species belonging to the tribe Triticeae is typically achieved by the formation of a brittle rachis. The trait relies on the development of a disarticulation layer, most frequently above the rachis node (resulting in wedge type dispersal units), but in some species below the rachis node (resulting in barrel type dispersal units). The genes responsible for the former type are the complementary pair Btr1 and Btr2, while the genetic basis of the latter type has yet to be determined. Aegilops tauschii forms barrel type dispersal units and previous study showed this species lacked an intact copy of Btr1. Here it has been demonstrated that Ae. tauschii carries two of Btr2; and that Btr2 transcript is present in a region below the rachis node where the abscission zone forms. The implication is that in this species, the Btr2 product is involved in the formation of barrel type dispersal units.
Collapse
Affiliation(s)
- Xiaoxue Zeng
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| | - Akemi Tagiri
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Shinji Kikuchi
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| | - Hidenori Sassa
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| | - Takao Komatsuda
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| |
Collapse
|
18
|
Vavilova V, Konopatskaia I, Blinov A, Kondratenko EY, Kruchinina YV, Goncharov NP. Genetic variability of spelt factor gene in Triticum and Aegilops species. BMC PLANT BIOLOGY 2020; 20:310. [PMID: 33050874 PMCID: PMC7556929 DOI: 10.1186/s12870-020-02536-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Threshability, rachis fragility and spike shape are critical traits for the domestication and evolution of wheat, determining the crop yield and efficiency of the harvest. Spelt factor gene Q controls a wide range of domestication-related traits in polyploid wheats, including those mentioned above. The main goal of the present study was to characterise the Q gene for uninvestigated accessions of wheats, including four endemics, and Aegilops accessions, and to analyze the species evolution based on differences in Q gene sequences. RESULTS We have studied the spike morphology for 15 accessions of wheat species, including four endemics, namely Triticum macha, T. tibetanum, T. aestivum ssp. petropavlovskyi and T. spelta ssp. yunnanense, and 24 Aegilops accessions, which are donors of B and D genomes for polyploid wheat. The Q-5A, q-5D and q-5S genes were investigated, and a novel allele of the Q-5A gene was found in accessions of T. tibetanum (KU510 and KU515). This allele was similar to the Q allele of T. aestivum cv. Chinese Spring but had an insertion 161 bp in length within exon 5. This insertion led to a frameshift and premature stop codon formation. Thus, the T. tibetanum have spelt spikes, which is probably determined by the gene Tg, rather than Q. We determined the variability within the q-5D genes among hexaploid wheat and their D genome donor Aegilops tauschii. Moreover, we studied the accessions C21-5129, KU-2074, and K-1100 of Ae. tauschii ssp. strangulata, which could be involved in the origin of hexaploid wheats. CONCLUSIONS The variability and phylogenetic relationships of the Q gene sequences studied allowed us to clarify the relationships between species of the genus Triticum and to predict the donor of the D genome among the Ae. tauschii accessions. Ae. tauschii ssp. strangulata accessions C21-5129, KU-2074 and K-1100 are the most interesting among the analysed accessions, since their partial sequence of q-5D is identical to the q-5D of T. aestivum cv. Chinese Spring. This result indicates that the donor is Ae. tauschii ssp. strangulata but not Ae. tauschii ssp. tauschii. Our analysis allowed us to clarify the phylogenetic relationships in the genus Triticum.
Collapse
Affiliation(s)
- Valeriya Vavilova
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russian Federation.
| | - Irina Konopatskaia
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russian Federation
| | - Alexandr Blinov
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russian Federation
| | | | | | | |
Collapse
|
19
|
Zeng X, Mishina K, Jia J, Distelfeld A, Maughan PJ, Kikuchi S, Sassa H, Komatsuda T. The Brittle Rachis Trait in Species Belonging to the Triticeae and Its Controlling Genes Btr1 and Btr2. FRONTIERS IN PLANT SCIENCE 2020; 11:1000. [PMID: 32793251 PMCID: PMC7387508 DOI: 10.3389/fpls.2020.01000] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 06/18/2020] [Indexed: 05/31/2023]
Abstract
In many non-cultivated angiosperm species, seed dispersal is facilitated by the shattering of the seed head at maturity; in the Triticeae tribe, to which several of the world's most important cereals belong, shattering takes the form of a disarticulation of the rachis. The products of the genes Btr1 and Btr2 are both required for disarticulation to occur above the rachis nodes within the genera Hordeum (barley) and Triticum/Aegilops (wheat). Here, it has been shown that both Btr1 and Btr2 are specific to the Triticeae tribe, although likely paralogs (Btr1-like and Btr2-like) are carried by the family Poaceae including Triticeae. Aegilops tauschii (the donor of the bread wheat D genome) lacks a copy of Btr1 and disarticulation in this species occurs below, rather than above the rachis node; thus, the product of Btr1 appears to be required for disarticulation to occur above the rachis node.
Collapse
Affiliation(s)
- Xiaoxue Zeng
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
- Graduate School of Horticulture, Chiba University, Matsudo, Japan
| | - Kohei Mishina
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Juqing Jia
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Assaf Distelfeld
- School of Plant Sciences and Food Security, Tel Aviv University, Tel Aviv, Israel
| | - Peter Jeff Maughan
- Department of Plant & Wildlife Sciences, Brigham Young University, Provo, UT, United States
| | - Shinji Kikuchi
- Graduate School of Horticulture, Chiba University, Matsudo, Japan
| | - Hidenori Sassa
- Graduate School of Horticulture, Chiba University, Matsudo, Japan
| | - Takao Komatsuda
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
- Graduate School of Horticulture, Chiba University, Matsudo, Japan
| |
Collapse
|
20
|
DeHaan L, Larson S, López-Marqués RL, Wenkel S, Gao C, Palmgren M. Roadmap for Accelerated Domestication of an Emerging Perennial Grain Crop. TRENDS IN PLANT SCIENCE 2020; 25:525-537. [PMID: 32407693 DOI: 10.1016/j.tplants.2020.02.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/03/2020] [Accepted: 02/06/2020] [Indexed: 05/14/2023]
Abstract
Shifting the life cycle of grain crops from annual to perennial would usher in a new era of agriculture that is more environmentally friendly, resilient to climate change, and capable of soil carbon sequestration. Despite decades of work, transforming the annual grain crop wheat (Triticum aestivum) into a perennial has yet to be realized. Direct domestication of wild perennial grass relatives of wheat, such as Thinopyrum intermedium, is an alternative approach. Here we highlight protein coding sequences in the recently released T. intermedium genome sequence that may be orthologous to domestication genes identified in annual grain crops. Their presence suggests a roadmap for the accelerated domestication of this plant using new breeding technologies.
Collapse
Affiliation(s)
- Lee DeHaan
- The Land Institute, 2440 E. Water Well Road, Salina, KS 67401, USA
| | - Steve Larson
- United States Department of Agriculture, Agriculture Research Service, Forage and Range Research, Utah State University, Logan, UT 84322-6300, USA
| | - Rosa L López-Marqués
- NovoCrops Center, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark
| | - Stephan Wenkel
- NovoCrops Center, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark
| | - Caixia Gao
- State Key Laboratory of Plant Cell and Chromosome Engineering, Center for Genome Editing, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing 100101, China
| | - Michael Palmgren
- NovoCrops Center, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark.
| |
Collapse
|
21
|
Vavilova VY, Konopatskaia ID, Blinov AG, Goncharov NP. Evolution of Btr1-А Gene in Diploid Wheat Species of the Genus Triticum L. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795420050142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|