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Silva GS, Souza MM, Pamponét VDCC, Micheli F, de Melo CAF, de Oliveira SG, Costa EA. Cytogenomic Characterization of Transposable Elements and Satellite DNA in Passiflora L. Species. Genes (Basel) 2024; 15:418. [PMID: 38674353 PMCID: PMC11049143 DOI: 10.3390/genes15040418] [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: 02/27/2024] [Revised: 03/17/2024] [Accepted: 03/22/2024] [Indexed: 04/28/2024] Open
Abstract
The species Passiflora alata, P. cincinnata, and P. edulis have great economic value due to the use of their fruits for human consumption. In this study, we compared the repetitive genome fractions of these three species. The compositions of the repetitive DNA of these three species' genomes were analyzed using clustering and identification of the repetitive sequences with RepeatExplorer. It was found that repetitive DNA content represents 74.70%, 66.86%, and 62.24% of the genome of P. alata, P. edulis, and P. cincinnata, respectively. LTR Ty3/Gypsy retrotransposons represent the highest genome proportions in P. alata and P. edulis, while Ty1/Copia comprises the largest proportion of P. cincinnata genome. Chromosomal mapping by Fluorescent In Situ Hybridization (FISH) showed that LTR retrotransposons have a dispersed distribution along chromosomes. The subtelomeric region of chromosomes is where 145 bp satellite DNA is located, suggesting that these elements may play important roles in genome structure and organization in these species. In this work, we obtained the first global characterization of the composition of repetitive DNA in Passiflora, showing that an increase in genome size is related to an increase in repetitive DNA, which represents an important evolutionary route for these species.
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Affiliation(s)
- Gonçalo Santos Silva
- Laboratório de Melhoramento de Plantas, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Ilhéus 45662-900, BA, Brazil; (G.S.S.); (V.d.C.C.P.); (F.M.); (C.A.F.d.M.); (E.A.C.)
| | - Margarete Magalhães Souza
- Laboratório de Melhoramento de Plantas, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Ilhéus 45662-900, BA, Brazil; (G.S.S.); (V.d.C.C.P.); (F.M.); (C.A.F.d.M.); (E.A.C.)
| | - Vanessa de Carvalho Cayres Pamponét
- Laboratório de Melhoramento de Plantas, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Ilhéus 45662-900, BA, Brazil; (G.S.S.); (V.d.C.C.P.); (F.M.); (C.A.F.d.M.); (E.A.C.)
| | - Fabienne Micheli
- Laboratório de Melhoramento de Plantas, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Ilhéus 45662-900, BA, Brazil; (G.S.S.); (V.d.C.C.P.); (F.M.); (C.A.F.d.M.); (E.A.C.)
- CIRAD, UMR AGAP, F-34398 Montpellier, France
| | - Cláusio Antônio Ferreira de Melo
- Laboratório de Melhoramento de Plantas, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Ilhéus 45662-900, BA, Brazil; (G.S.S.); (V.d.C.C.P.); (F.M.); (C.A.F.d.M.); (E.A.C.)
| | - Sárah Gomes de Oliveira
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo (USP), São Paulo 01049-010, SP, Brazil;
| | - Eduardo Almeida Costa
- Laboratório de Melhoramento de Plantas, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), Ilhéus 45662-900, BA, Brazil; (G.S.S.); (V.d.C.C.P.); (F.M.); (C.A.F.d.M.); (E.A.C.)
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Louzada S, Yang F. High-Resolution FISH Analysis Using DNA Fibers Generated by Molecular Combing. Methods Mol Biol 2024; 2825:185-203. [PMID: 38913310 DOI: 10.1007/978-1-0716-3946-7_10] [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] [Indexed: 06/25/2024]
Abstract
Molecular combing is a technique used to stretch hundreds of consistent DNA molecules in parallel on a glass surface, with a resolution of two kilo-basepairs per micrometer. The combination of this approach with fluorescent in situ hybridization (FISH) has enabled the direct visualization of DNA structure and variations at an unprecedent high resolution. This technique has been successfully used in various studies such as the identification of copy number and genomic structural variations and the precise measurements of overlap and gap sizing between contigs in genome assemblies. Here, we describe the procedure for the preparation of DNA fibers by molecular combing and its applications in multicolor fiber-FISH.
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Affiliation(s)
- Sandra Louzada
- CytoGenomics Lab, Department of Genetics and Biotechnology (DGB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- BioISI-Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, Lisbon, Portugal
| | - Fengtang Yang
- School of Biological Sciences and Medicine, Shandong University of Technology, Zibo, China
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Liu Y, Yi C, Fan C, Liu Q, Liu S, Shen L, Zhang K, Huang Y, Liu C, Wang Y, Tian Z, Han F. Pan-centromere reveals widespread centromere repositioning of soybean genomes. Proc Natl Acad Sci U S A 2023; 120:e2310177120. [PMID: 37816061 PMCID: PMC10589659 DOI: 10.1073/pnas.2310177120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 09/06/2023] [Indexed: 10/12/2023] Open
Abstract
Centromere repositioning refers to a de novo centromere formation at another chromosomal position without sequence rearrangement. This phenomenon was frequently encountered in both mammalian and plant species and has been implicated in genome evolution and speciation. To understand the dynamic of centromeres on soybean genome, we performed the pan-centromere analysis using CENH3-ChIP-seq data from 27 soybean accessions, including 3 wild soybeans, 9 landraces, and 15 cultivars. Building upon the previous discovery of three centromere satellites in soybean, we have identified two additional centromere satellites that specifically associate with chromosome 1. These satellites reveal significant rearrangements in the centromere structures of chromosome 1 across different accessions, consequently impacting the localization of CENH3. By comparative analysis, we reported a high frequency of centromere repositioning on 14 out of 20 chromosomes. Most newly emerging centromeres formed in close proximity to the native centromeres and some newly emerging centromeres were apparently shared in distantly related accessions, suggesting their emergence is independent. Furthermore, we crossed two accessions with mismatched centromeres to investigate how centromere positions would be influenced in hybrid genetic backgrounds. We found that a significant proportion of centromeres in the S9 generation undergo changes in size and position compared to their parental counterparts. Centromeres preferred to locate at satellites to maintain a stable state, highlighting a significant role of centromere satellites in centromere organization. Taken together, these results revealed extensive centromere repositioning in soybean genome and highlighted how important centromere satellites are in constraining centromere positions and supporting centromere function.
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Affiliation(s)
- Yang Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
| | - Congyang Yi
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
- College of Advanced Agricultural Sciences, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Chaolan Fan
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
| | - Qian Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
- College of Advanced Agricultural Sciences, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Shulin Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
| | - Lisha Shen
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
| | - Kaibiao Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
- College of Advanced Agricultural Sciences, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Yuhong Huang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
- College of Advanced Agricultural Sciences, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Chang Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
- College of Advanced Agricultural Sciences, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Yingxiang Wang
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou510642, China
| | - Zhixi Tian
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
| | - Fangpu Han
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing100101, China
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Ramos LC, Báez M, Fuchs J, Houben A, Carvalho R, Pedrosa-Harand A. Differential Repeat Accumulation in the Bimodal Karyotype of Agave L. Genes (Basel) 2023; 14:491. [PMID: 36833420 PMCID: PMC9956584 DOI: 10.3390/genes14020491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/10/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
The genus Agave presents a bimodal karyotype with x = 30 (5L, large, +25S, small chromosomes). Bimodality within this genus is generally attributed to allopolyploidy in the ancestral form of Agavoideae. However, alternative mechanisms, such as the preferential accumulation of repetitive elements at the macrochromosomes, could also be important. Aiming to understand the role of repetitive DNA within the bimodal karyotype of Agave, genomic DNA from the commercial hybrid 11648 (2n = 2x = 60, 6.31 Gbp) was sequenced at low coverage, and the repetitive fraction was characterized. In silico analysis showed that ~67.6% of the genome is mainly composed of different LTR retrotransposon lineages and one satellite DNA family (AgSAT171). The satellite DNA localized at the centromeric regions of all chromosomes; however, stronger signals were observed for 20 of the macro- and microchromosomes. All transposable elements showed a dispersed distribution, but not uniform across the length of the chromosomes. Different distribution patterns were observed for different TE lineages, with larger accumulation at the macrochromosomes. The data indicate the differential accumulation of LTR retrotransposon lineages at the macrochromosomes, probably contributing to the bimodality. Nevertheless, the differential accumulation of the satDNA in one group of macro- and microchromosomes possibly reflects the hybrid origin of this Agave accession.
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Affiliation(s)
- Lamonier Chaves Ramos
- Laboratory of Plant Cytogenetics, Graduate Program in Agronomy, Genetic Plant Breeding—PPGAMGP, Department of Agronomy, Federal Rural University of Pernambuco, Recife 52171-900, Brazil
- Laboratory of Plant Cytogenetics and Evolution, Department of Botany, Federal University of Pernambuco, Recife 50670-420, Brazil
| | - Mariana Báez
- Laboratory of Plant Cytogenetics and Evolution, Department of Botany, Federal University of Pernambuco, Recife 50670-420, Brazil
- Plant Breeding Department, University of Bonn, Katzenburgweg 5, 53115 Bonn, Germany
| | - Joerg Fuchs
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Stadt Seeland, Germany
| | - Andreas Houben
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Stadt Seeland, Germany
| | - Reginaldo Carvalho
- Laboratory of Plant Cytogenetics, Graduate Program in Agronomy, Genetic Plant Breeding—PPGAMGP, Department of Agronomy, Federal Rural University of Pernambuco, Recife 52171-900, Brazil
| | - Andrea Pedrosa-Harand
- Laboratory of Plant Cytogenetics and Evolution, Department of Botany, Federal University of Pernambuco, Recife 50670-420, Brazil
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Wang K, Xiang D, Xia K, Sun B, Khurshid H, Esh AMH, Zhang H. Characterization of Repetitive DNA in Saccharum officinarum and Saccharum spontaneum by Genome Sequencing and Cytological Assays. FRONTIERS IN PLANT SCIENCE 2022; 13:814620. [PMID: 35273624 PMCID: PMC8902033 DOI: 10.3389/fpls.2022.814620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
In most plant species, DNA repeated elements such as satellites and retrotransposons are composing the majority of their genomes. Saccharum officinarum (2n = 8x = 80) and S. spontaneum (2n = 40-128) are the two fundamental donors of modern sugarcane cultivars. These two species are polyploids with large genome sizes and are enriched in repetitive elements. In this work, we adopted a de novo strategy to isolate highly repetitive and abundant sequences in S. officinarum LA Purple and S. spontaneum SES208. The findings obtained from alignment to the genome assemblies revealed that the vast majority of the repeats (97.9% in LA Purple and 96.5% in SES208) were dispersed in the respective genomes. Fluorescence in situ hybridization assays were performed on 27 representative repeats to investigate their distributions and abundances. The results showed that the copies of some highly repeated sequences, including rDNA and centromeric or telomeric repeats, were underestimated in current genome assemblies. The analysis of the raw read mapping strategy showed more copy numbers for all studied repeats, suggesting that copy number underestimation is common for highly repeated sequences in current genome assemblies of LA Purple and SES208. In addition, the data showed that the centromeric retrotransposons in all SES208 centromeres were absent in certain S. spontaneum clones with different ploidies. This rapid turnover of centromeric DNA in sugarcane provides new clues regarding the pattern of centromeric retrotransposon formation and accumulation.
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Affiliation(s)
- Kai Wang
- School of Life Sciences, Nantong University, Nantong, China
| | - Dong Xiang
- Guangxi Key Laboratory of Sugarcane Biology & Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Kai Xia
- Guangxi Key Laboratory of Sugarcane Biology & Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Bo Sun
- Guangxi Key Laboratory of Sugarcane Biology & Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Haris Khurshid
- Oilseeds Research Program, National Agricultural Research Centre, Islamabad, Pakistan
| | - Ayman M. H. Esh
- Sugar Crops Research Institute, Agriculture Research Center, Giza, Egypt
| | - Hui Zhang
- School of Life Sciences, Nantong University, Nantong, China
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A comprehensive molecular cytogenetic analysis of the genome architecture in modern sugarcane cultivars. Chromosome Res 2022; 30:29-41. [PMID: 34988746 DOI: 10.1007/s10577-021-09680-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/15/2021] [Accepted: 11/28/2021] [Indexed: 01/09/2023]
Abstract
Modern sugarcane cultivars are derived from the hybridization of Saccharum officinarum (2n = 80) and S. spontaneum (2n = 40-128), leading to a variety of complex genomes with highly polyploid and varied chromosome structures. These complex genomes have hindered deciphering the genome structure and marker-assisted selection in sugarcane breeding. Ten cultivars were analyzed by fluorescence in situ hybridization adopting chromosome painting and S. spontaneum-specific probes. The results showed six types of chromosomes in the studied cultivars, including S. spontaneum or S. officinarum chromosomes, interspecific recombinations from homoeologous or nonhomoeologous chromosomes, and translocations of S. spontaneum or S. officinarum chromosomes. The results showed unexpectedly high proportions of interspecific recombinations in these cultivars (11.9-40.9%), which renew our knowledge that less than 13% of chromosomes result from interspecific exchanges. Also, the results showed a high frequency of translocations (an average of 2.15 translocations per chromosome) between S. officinarum chromosomes. The diverse types of chromosomes in cultivars imply that hybrid gametes of S. spontaneum and S. officinarum may form unusual chromosome pairs, including homoeologous or nonhomoeologous chromosomes either between or within S. spontaneum and S. officinarum. Moreover, we consistently observed 11 or 12 copies for the four studied chromosomes, i.e., chromosomes 1, 2, 7, and 8, suggesting steady transmission during the breeding program. By comparison, we found a relatively fewer copies of S. spontaneum chromosome 1 than those of S. spontaneum chromosomes 2, 7, and 8. These results provide deep insights into the structure of cultivars and may facilitate chromosome-assisted selection in sugarcane breeding.
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Meng Z, Wang Q, Khurshid H, Raza G, Han J, Wang B, Wang K. Chromosome Painting Provides Insights Into the Genome Structure and Evolution of Sugarcane. FRONTIERS IN PLANT SCIENCE 2021; 12:731664. [PMID: 34512706 PMCID: PMC8429501 DOI: 10.3389/fpls.2021.731664] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
The genus Saccharum is composed of species with high polyploidy and highly varied chromosome numbers, laying a challenge for uncovering its genomic structure and evolution. We developed a chromosome 2 painting (CP2) probe by designing oligonucleotides covering chromosome 2 of Saccharum spontaneum (2n = 8x = 64). Fluorescence in situ hybridization (FISH) using this CP2 probe revealed six types of ploidies from twenty S. spontaneum clones, including 6x, 8x, 10x, 11x, 12x, and 13x clones. The finding of S. spontaneum clones with uneven of ploid suggested that certain S. spontaneum clones come from hybridization. It renews our knowledge that S. spontaneum is derived from autopolyploidization. Combined with a S. spontaneum-specific probe, chromosome 2-derived chromosome or fragments from either S. spontaneum or Saccharum officinarum can be identified in sugarcane modern cultivars. We revealed unexpected high level of interspecific recombination from introgressive S. spontaneum chromosomes (>50.0%) in cultivars ROC22 and ZZ1, indicating frequent chromosome exchange in cultivars. Intriguingly, we observed interspecific recombination recurring among either homoeologous or non-homoeologous chromosomes in sugarcane cultivars. These results demonstrated that chromosome painting FISH is a powerful tool in the genome dissection of sugarcane and provide new insights into the genome structure and evolution of the complex genus Saccharum.
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Affiliation(s)
- Zhuang Meng
- School of Life Sciences, Nantong University, Nantong, China
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops (MOE), Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qinnan Wang
- Institute of Bioengineering, Guangdong Academy of Sciences, Guangzhou, China
| | - Haris Khurshid
- Oilseeds Research Program, National Agricultural Research Centre, Islamabad, Pakistan
| | - Ghulam Raza
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
| | - Jinlei Han
- School of Life Sciences, Nantong University, Nantong, China
| | - Baohua Wang
- School of Life Sciences, Nantong University, Nantong, China
| | - Kai Wang
- School of Life Sciences, Nantong University, Nantong, China
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops (MOE), Fujian Agriculture and Forestry University, Fuzhou, China
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Kadluczka D, Grzebelus E. Using carrot centromeric repeats to study karyotype relationships in the genus Daucus (Apiaceae). BMC Genomics 2021; 22:508. [PMID: 34225677 PMCID: PMC8259371 DOI: 10.1186/s12864-021-07853-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/24/2021] [Indexed: 01/01/2023] Open
Abstract
Background In the course of evolution, chromosomes undergo evolutionary changes; thus, karyotypes may differ considerably among groups of organisms, even within closely related taxa. The genus Daucus seems to be a promising model for exploring the dynamics of karyotype evolution. It comprises some 40 wild species and the cultivated carrot, a crop of great economic significance. However, Daucus species are very diverse morphologically and genetically, and despite extensive research, the taxonomic and phylogenetic relationships between them have still not been fully resolved. Although several molecular cytogenetic studies have been conducted to investigate the chromosomal structure and karyotype evolution of carrot and other Daucus species, detailed karyomorphological research has been limited to carrot and only a few wild species. Therefore, to better understand the karyotype relationships within Daucus, we (1) explored the chromosomal distribution of carrot centromeric repeats (CentDc) in 34 accessions of Daucus and related species by means of fluorescence in situ hybridization (FISH) and (2) performed detailed karyomorphological analysis in 16 of them. Results We determined the genomic organization of CentDc in 26 accessions of Daucus (belonging to both Daucus I and II subclades) and one accession of closely related species. The CentDc repeats were present in the centromeric regions of all chromosomes of 20 accessions (representing 11 taxa). In the other Daucus taxa, the number of chromosome pairs with CentDc signals varied depending on the species, yet their centromeric localization was conserved. In addition, precise chromosome measurements performed in 16 accessions showed the inter- and intraspecific karyological relationships among them. Conclusions The presence of the CentDc repeats in the genomes of taxa belonging to both Daucus subclades and one outgroup species indicated the ancestral status of the repeat. The results of our study provide useful information for further evolutionary, cytotaxonomic, and phylogenetic research on the genus Daucus and may contribute to a better understanding of the dynamic evolution of centromeric satellites in plants. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-07853-2.
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Affiliation(s)
- Dariusz Kadluczka
- Department of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, al. 29 Listopada 54, 31-425, Krakow, Poland.
| | - Ewa Grzebelus
- Department of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, al. 29 Listopada 54, 31-425, Krakow, Poland.
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Huang Y, Ding W, Zhang M, Han J, Jing Y, Yao W, Hasterok R, Wang Z, Wang K. The formation and evolution of centromeric satellite repeats in Saccharum species. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 106:616-629. [PMID: 33547688 DOI: 10.1111/tpj.15186] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 01/25/2021] [Accepted: 01/29/2021] [Indexed: 05/04/2023]
Abstract
Centromeres in eukaryotes are composed of tandem DNAs and retrotransposons. However, centromeric repeats exhibit considerable diversity, even among closely related species, and their origin and evolution are largely unknown. We conducted a genome-wide characterization of the centromeric sequences in sugarcane (Saccharum officinarum). Four centromeric tandem repeat sequences, So1, So103, So137 and So119, were isolated. So1 has a monomeric length of 137 bp, typical of a centromeric satellite, and has evolved four variants. However, these So1 variants had distinct centromere distributions and some were unique to an individual centromere. The distributions of the So1 variants were unexpectedly consistent among the Saccharum species that had different basic chromosome numbers or ploidy levels, thus suggesting evolutionary stability for approximately 7 million years in sugarcane. So103, So137 and So119 had unusually longer monomeric lengths that ranged from 327 to 1371 bp and lacked translational phasing on the CENH3 nucleosomes. Moreover, So103, So137 and So119 seemed to be highly similar to retrotransposons, which suggests that they originated from these mobile elements. Notably, all three repeats were flanked by direct repeats, and formed extrachromosomal circular DNAs (eccDNAs). The presence of circular molecules for these retrotransposon-derived centromeric satellites suggests an eccDNA-mediated centromeric satellite formation pathway in sugarcane.
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Affiliation(s)
- Yongji Huang
- Guangxi Key Laboratory of Sugarcane Biology & Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops (MOE), College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Wenjie Ding
- Guangxi Key Laboratory of Sugarcane Biology & Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops (MOE), College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Muqing Zhang
- Guangxi Key Laboratory of Sugarcane Biology & Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops (MOE), College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- State Key Laboratory for Conservation and Utilization of Subtropical Agro- Bioresources, Guangxi Key Lab for Sugarcane Biology, Guangxi University, Nanning, 530004, China
| | - Jinlei Han
- Guangxi Key Laboratory of Sugarcane Biology & Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops (MOE), College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yanfen Jing
- Ruili Breeding Station, Sugarcane Institute, Yunnan Academy of Agricultural Sciences, Ruili, 678600, China
| | - Wei Yao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro- Bioresources, Guangxi Key Lab for Sugarcane Biology, Guangxi University, Nanning, 530004, China
| | - Robert Hasterok
- Plant Cytogenetics and Molecular Biology Group, Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, 40-032, Poland
| | - Zonghua Wang
- Guangxi Key Laboratory of Sugarcane Biology & Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops (MOE), College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Kai Wang
- Guangxi Key Laboratory of Sugarcane Biology & Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops (MOE), College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
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Kuo YT, Ishii T, Fuchs J, Hsieh WH, Houben A, Lin YR. The Evolutionary Dynamics of Repetitive DNA and Its Impact on the Genome Diversification in the Genus Sorghum. FRONTIERS IN PLANT SCIENCE 2021; 12:729734. [PMID: 34475879 PMCID: PMC8407070 DOI: 10.3389/fpls.2021.729734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 07/23/2021] [Indexed: 05/11/2023]
Abstract
Polyploidization is an evolutionary event leading to structural changes of the genome(s), particularly allopolyploidization, which combines different genomes of distinct species. The tetraploid species, Sorghum halepense, is assumed an allopolyploid species formed by hybridization between diploid S. bicolor and S. propinquum. The repeat profiles of S. bicolor, S. halepense, and their relatives were compared to elucidate the repeats' role in shaping their genomes. The repeat frequencies and profiles of the three diploid accessions (S. bicolor, S. bicolor ssp. verticilliflorum, and S. bicolor var. technicum) and two tetraploid accessions (S. halepense) are similar. However, the polymorphic distribution of the subtelomeric satellites preferentially enriched in the tetraploid S. halepense indicates drastic genome rearrangements after the allopolyploidization event. Verified by CENH3 chromatin immunoprecipitation (ChIP)-sequencing and fluorescence in situ hybridization (FISH) analysis the centromeres of S. bicolor are mainly composed of the abundant satellite SorSat137 (CEN38) and diverse CRMs, Athila of Ty3_gypsy and Ty1_copia-SIRE long terminal repeat (LTR) retroelements. A similar centromere composition was found in S. halepense. The potential contribution of S. bicolor in the formation of tetraploid S. halepense is discussed.
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Affiliation(s)
- Yi-Tzu Kuo
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
- Department of Agronomy, National Taiwan University, Taipei, Taiwan
| | - Takayoshi Ishii
- Arid Land Research Center, Tottori University, Tottori, Japan
| | - Jörg Fuchs
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Wei-Hsun Hsieh
- Department of Agronomy, National Taiwan University, Taipei, Taiwan
| | - Andreas Houben
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
- *Correspondence: Andreas Houben,
| | - Yann-Rong Lin
- Department of Agronomy, National Taiwan University, Taipei, Taiwan
- World Vegetable Center, Tainan, Taiwan
- Yann-Rong Lin,
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11
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Xia QM, Miao LK, Xie KD, Yin ZP, Wu XM, Chen CL, Grosser JW, Guo WW. Localization and characterization of Citrus centromeres by combining half-tetrad analysis and CenH3-associated sequence profiling. PLANT CELL REPORTS 2020; 39:1609-1622. [PMID: 32897396 DOI: 10.1007/s00299-020-02587-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 08/26/2020] [Indexed: 06/11/2023]
Abstract
The physical locations of citrus centromere are revealed by combining genetic and immunological assays for the first time and nine citrus centromere-specific markers for cytogenetics are mined. Centromere localization is challenging, because highly redundant repetitive sequences in centromeric regions make sequence assembly difficult. Although several citrus genomes have been released, the centromeric regions and their characteristics remain to be elucidated. Here, we mapped citrus centromeres through half-tetrad analysis (HTA) that included the genotyping of 54 tetraploid hybrids derived from 2n megagametophytes of Nadorcott tangor with 212 single nucleotide polymorphism (SNP) markers. The sizes of centromeric regions, which estimated based on the heterozygosity restitution rate pattern along the chromosomes, ranged from 1.12 to 18.19 Mb. We also profiled the binding sequences with the centromere-specific histone variant CenH3 by chromatin immunoprecipitation sequencing (ChIP-seq). Based on the positions of the top ten CenH3-enriched contigs, the sizes of centromeric regions were estimated to range from 0.01 to 7.60 Mb and were either adjacent to or included in the centromeric regions identified by HTA. We used DNA probes from two repeats selected from the centromeric regions and seven CenH3-binding centromeric repeats to verify centromeric locations by fluorescence in situ hybridization (FISH). Centromere localization in citrus will contribute to the mining of centromeric/pericentromeric markers, thus to facilitate the rapid identification of mechanisms underlying 2n gamete formation and serve the polyploidy breeding.
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Affiliation(s)
- Qiang-Ming Xia
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Lu-Ke Miao
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Kai-Dong Xie
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Zhao-Ping Yin
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiao-Meng Wu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chun-Li Chen
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jude W Grosser
- Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred, FL, 33850, USA
| | - Wen-Wu Guo
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
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12
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Tunjić Cvitanić M, Vojvoda Zeljko T, Pasantes JJ, García-Souto D, Gržan T, Despot-Slade E, Plohl M, Šatović E. Sequence Composition Underlying Centromeric and Heterochromatic Genome Compartments of the Pacific Oyster Crassostrea gigas. Genes (Basel) 2020; 11:genes11060695. [PMID: 32599860 PMCID: PMC7348941 DOI: 10.3390/genes11060695] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/10/2020] [Accepted: 06/22/2020] [Indexed: 02/07/2023] Open
Abstract
Segments of the genome enriched in repetitive sequences still present a challenge and are omitted in genome assemblies. For that reason, the exact composition of DNA sequences underlying the heterochromatic regions and the active centromeres are still unexplored for many organisms. The centromere is a crucial region of eukaryotic chromosomes responsible for the accurate segregation of genetic material. The typical landmark of centromere chromatin is the rapidly-evolving variant of the histone H3, CenH3, while DNA sequences packed in constitutive heterochromatin are associated with H3K9me3-modified histones. In the Pacific oyster Crassostrea gigas we identified its centromere histone variant, Cg-CenH3, that shows stage-specific distribution in gonadal cells. In order to investigate the DNA composition of genomic regions associated with the two specific chromatin types, we employed chromatin immunoprecipitation followed by high-throughput next-generation sequencing of the Cg-CenH3- and H3K9me3-associated sequences. CenH3-associated sequences were assigned to six groups of repetitive elements, while H3K9me3-associated-ones were assigned only to three. Those associated with CenH3 indicate the lack of uniformity in the chromosomal distribution of sequences building the centromeres, being also in the same time dispersed throughout the genome. The heterochromatin of C. gigas exhibited general paucity and limited chromosomal localization as predicted, with H3K9me3-associated sequences being predominantly constituted of DNA transposons.
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Affiliation(s)
- Monika Tunjić Cvitanić
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (M.T.C.); (T.V.Z.); (T.G.); (E.D.-S.)
| | - Tanja Vojvoda Zeljko
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (M.T.C.); (T.V.Z.); (T.G.); (E.D.-S.)
| | - Juan J. Pasantes
- Departamento de Bioquímica, Xenética e Inmunoloxía, Centro de Investigación Mariña (CIM), Universidade de Vigo, 36310 Vigo, Spain; (J.J.P.); (D.G.-S.)
| | - Daniel García-Souto
- Departamento de Bioquímica, Xenética e Inmunoloxía, Centro de Investigación Mariña (CIM), Universidade de Vigo, 36310 Vigo, Spain; (J.J.P.); (D.G.-S.)
- Department of Zoology, Genetics and Physical Anthropology, Universidade de Santiago de Compostela, Praza do Obradoiro, 0, 15705 Santiago de Compostela, Spain
- Cancer, Ageing and Somatic Mutation, Wellcome Sanger Institute, Hinxton, Cambridgeshire CB10 1SA, UK
| | - Tena Gržan
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (M.T.C.); (T.V.Z.); (T.G.); (E.D.-S.)
| | - Evelin Despot-Slade
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (M.T.C.); (T.V.Z.); (T.G.); (E.D.-S.)
| | - Miroslav Plohl
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (M.T.C.); (T.V.Z.); (T.G.); (E.D.-S.)
- Correspondence: (M.P.); (E.Š.)
| | - Eva Šatović
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia; (M.T.C.); (T.V.Z.); (T.G.); (E.D.-S.)
- Correspondence: (M.P.); (E.Š.)
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Setiawan AB, Teo CH, Kikuchi S, Sassa H, Kato K, Koba T. Centromeres of Cucumis melo L. comprise Cmcent and two novel repeats, CmSat162 and CmSat189. PLoS One 2020; 15:e0227578. [PMID: 31945109 PMCID: PMC6964814 DOI: 10.1371/journal.pone.0227578] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/20/2019] [Indexed: 12/29/2022] Open
Abstract
Centromeres are prerequisite for accurate segregation and are landmarks of primary constrictions of metaphase chromosomes in eukaryotes. In melon, high-copy-number satellite DNAs (SatDNAs) were found at various chromosomal locations such as centromeric, pericentromeric, and subtelomeric regions. In the present study, utilizing the published draft genome sequence of melon, two new SatDNAs (CmSat162 and CmSat189) of melon were identified and their chromosomal distributions were confirmed using fluorescence in situ hybridization. DNA probes prepared from these SatDNAs were successfully hybridized to melon somatic and meiotic chromosomes. CmSat162 was located on 12 pairs of melon chromosomes and co-localized with the centromeric repeat, Cmcent, at the centromeric regions. In contrast, CmSat189 was found to be located not only on centromeric regions but also on specific regions of the chromosomes, allowing the characterization of individual chromosomes of melon. It was also shown that these SatDNAs were transcribed in melon. These results suggest that CmSat162 and CmSat189 might have some functions at the centromeric regions.
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Affiliation(s)
- Agus Budi Setiawan
- Laboratory of Genetics and Plant Breeding, Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| | - Chee How Teo
- Center for Research in Biotechnology for Agriculture, University of Malaya, Kuala Lumpur, Malaysia
| | - Shinji Kikuchi
- Laboratory of Genetics and Plant Breeding, Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| | - Hidenori Sassa
- Laboratory of Genetics and Plant Breeding, Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
| | - Kenji Kato
- Graduate School of Environmental and Life Science, Okayama University, Kita-ku, Okayama, Japan
| | - Takato Koba
- Laboratory of Genetics and Plant Breeding, Graduate School of Horticulture, Chiba University, Matsudo, Chiba, Japan
- * E-mail:
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14
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Species-specific abundant retrotransposons elucidate the genomic composition of modern sugarcane cultivars. Chromosoma 2019; 129:45-55. [PMID: 31848693 DOI: 10.1007/s00412-019-00729-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 11/29/2019] [Accepted: 12/04/2019] [Indexed: 10/25/2022]
Abstract
Modern sugarcane cultivars are highly polyploid and derived from the hybridization of Saccharum officinarum and S. spontaneum, thus leading to singularly complex genomes. The complex genome has hindered the study of genomic structures. Here, we adopted a computational strategy to isolate highly repetitive and abundant sequences in either S. officinarum or S. spontaneum and isolated four S. spontaneum-enriched retrotransposons. Fluorescence in situ hybridization (FISH) assays with these repetitive DNA sequences generated whole-genome painting signals for S. spontaneum but not for S. officinarum. We demonstrated that these repetitive sequence-based probes distinguish the parental S. spontaneum genome in hybrids derived from crosses between it and S. officinarum. A cytological analysis of 14 modern sugarcane cultivars revealed that the percentages of chromosomes with introgressive S. spontaneum fragments ranged from 11.9 to 40.9% and substantially exceeded those determined for previously investigated cultivars (5-13%). The comparatively higher percentages of introgressive S. spontaneum fragments detected in the aforementioned cultivars indicate frequent recombination between parental genomes. Here, we present the application of our strategy to isolate species-specific cytological markers. This information may help to elucidate complex plant genomic structures and trace their evolutionary histories.
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15
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Zhao J, Hao W, Tang C, Yao H, Li B, Zheng Q, Li Z, Zhang X. Plasticity in Triticeae centromere DNA sequences: a wheat × tall wheatgrass (decaploid) model. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 100:314-327. [PMID: 31259444 DOI: 10.1111/tpj.14444] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 06/05/2019] [Accepted: 06/11/2019] [Indexed: 06/09/2023]
Abstract
Centromeres mediate chromosome attachment to microtubules and maintain the integrity of chromosomes for proper segregation of the sister chromatids during cell division. Advances in the assembly of Triticeae genome sequences combined with the capacity to recover hybrid species derived from very distantly related species provides potential experimental systems for linking retrotransposon amplification and repositioning of centromeres via non-mendelian inheritance in partial amphiploid breeds. The decaploid tall wheatgrass (Thinopyrum ponticum) is one of the most successfully used perennial species in wheat breeding for generating translocation lines with valuable agronomic traits. We found that wheat centromere retrotransposons CRW and Quinta widely occur within the tall wheatgrass genome. In addition, one of the genome donors to Th. ponticum, Pseudoroegneria stipifolia (StSt), has been shown to have Abigail and a satellite repeat, CentSt. We also found two other centromeric retrotransposons, Abia and CL135 in Th. ponticum by ChIP-seq. Examination of partial amphiploid lines that were generated in the 1970s demonstrated extensive modification in centromere sequences using CentSt, Abigail and Abia as probes. We also detected that St-genome chromosomes were more enriched with Abigail and CentSt, whereas E-genome chromosomes were enriched with CRW and Quinta in tall wheatgrass and its closer relatives. It can be concluded that bursts of transposition of retrotransposons and repositioning of centromeres via non-mendelian segregation are common in partial amphiploids derived from interspecific hybrids. Practically speaking, our study reveals that the existence of homologous centromere functional sequences in both a donor and its receptor can substantially contribute to the successful transfer of alien genes into crop species. OPEN RESEARCH BADGES: This article has earned an Open Data Badge for making publicly available the digitally-shareable data necessary to reproduce the reported results. The data is available at https://www.ncbi.nlm.nih.gov/sra/SRR9089557; https://www.ncbi.nlm.nih.gov/sra/SRR9089558; https://www.ncbi.nlm.nih.gov/sra/SRR9089559; https://www.ncbi.nlm.nih.gov/sra/SRR9089560; https://www.ncbi.nlm.nih.gov/sra/SRR9089561; https://www.ncbi.nlm.nih.gov/sra/SRR9089562; https://www.ncbi.nlm.nih.gov/sra/SRR9089563; https://www.ncbi.nlm.nih.gov/sra/SRR9089564; https://www.ncbi.nlm.nih.gov/nuccore/MK999394; https://www.ncbi.nlm.nih.gov/nuccore/MK999395; https://www.ncbi.nlm.nih.gov/nuccore/MK999396.
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Affiliation(s)
- Jing Zhao
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Centre, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Weiwei Hao
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Caiguo Tang
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Han Yao
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Baochun Li
- Gansu Agricultural University, Lanzhou, 730070, Gansu, China
| | - Qi Zheng
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Development of Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhensheng Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Development of Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xueyong Zhang
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Gansu Agricultural University, Lanzhou, 730070, Gansu, China
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16
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Jiang J. Fluorescence in situ hybridization in plants: recent developments and future applications. Chromosome Res 2019; 27:153-165. [PMID: 30852707 DOI: 10.1007/s00425-00018-03033-00424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/27/2019] [Accepted: 03/01/2019] [Indexed: 05/20/2023]
Abstract
Fluorescence in situ hybridization (FISH) was developed more than 30 years ago and has been the most paradigm-changing technique in cytogenetic research. FISH has been used to answer questions related to structure, mutation, and evolution of not only individual chromosomes but also entire genomes. FISH has served as an important tool for chromosome identification in many plant species. This review intends to summarize and discuss key technical development and applications of FISH in plants since 2006. The most significant recent advance of FISH is the development and application of probes based on synthetic oligonucleotides (oligos). Oligos specific to a repetitive DNA sequence, to a specific chromosomal region, or to an entire chromosome can be computationally identified, synthesized in parallel, and fluorescently labeled. Oligo probes designed from conserved DNA sequences from one species can be used among genetically related species, allowing comparative cytogenetic mapping of these species. The advances with synthetic oligo probes will significantly expand the applications of FISH especially in non-model plant species. Recent achievements and future applications of FISH and oligo-FISH are discussed.
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Affiliation(s)
- Jiming Jiang
- Department of Plant Biology, Department of Horticulture, Michigan State University, East Lansing, MI, 48824, USA.
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17
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Pamponét VCC, Souza MM, Silva GS, Micheli F, de Melo CAF, de Oliveira SG, Costa EA, Corrêa RX. Low coverage sequencing for repetitive DNA analysis in Passiflora edulis Sims: citogenomic characterization of transposable elements and satellite DNA. BMC Genomics 2019; 20:262. [PMID: 30940088 PMCID: PMC6444444 DOI: 10.1186/s12864-019-5576-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 02/28/2019] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The cytogenomic study of repetitive regions is fundamental for the understanding of morphofunctional mechanisms and genome evolution. Passiflora edulis a species of relevant agronomic value, this work had its genome sequenced by next generation sequencing and bioinformatics analysis performed by RepeatExplorer pipeline. The clusters allowed the identification and characterization of repetitive elements (predominant contributors to most plant genomes). The aim of this study was to identify, characterize and map the repetitive DNA of P. edulis, providing important cytogenomic markers, especially sequences associated with the centromere. RESULTS Three clusters of satellite DNAs (69, 118 and 207) and seven clusters of Long Terminal Repeat (LTR) retrotransposons of the superfamilies Ty1/Copy and Ty3/Gypsy and families Angela, Athila, Chromovirus and Maximus-Sire (6, 11, 36, 43, 86, 94 and 135) were characterized and analyzed. The chromosome mapping of satellite DNAs showed two hybridization sites co-located in the 5S rDNA region (PeSat_1), subterminal hybridizations (PeSat_3) and hybridization in four sites, co-located in the 45S rDNA region (PeSat_2). Most of the retroelements hybridizations showed signals scattered in the chromosomes, diverging in abundance, and only the cluster 6 presented pericentromeric regions marking. No satellite DNAs and retroelement associated with centromere was observed. CONCLUSION P. edulis has a highly repetitive genome, with the predominance of Ty3/Gypsy LTR retrotransposon. The satellite DNAs and LTR retrotransposon characterized are promising markers for investigation of the evolutionary patterns and genetic distinction of species and hybrids of Passiflora.
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MESH Headings
- Chromosome Mapping
- Chromosomes, Plant
- DNA, Plant/genetics
- DNA, Plant/metabolism
- DNA, Satellite/classification
- DNA, Satellite/genetics
- High-Throughput Nucleotide Sequencing
- In Situ Hybridization, Fluorescence
- Passiflora/genetics
- Phylogeny
- RNA, Ribosomal/genetics
- RNA, Ribosomal, 5S/genetics
- Retroelements/genetics
- Sequence Analysis, DNA
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Affiliation(s)
- Vanessa Carvalho Cayres Pamponét
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), km 16, Salobrinho, Ilhéus, Bahia CEP 45662-900 Brazil
| | - Margarete Magalhães Souza
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), km 16, Salobrinho, Ilhéus, Bahia CEP 45662-900 Brazil
| | - Gonçalo Santos Silva
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), km 16, Salobrinho, Ilhéus, Bahia CEP 45662-900 Brazil
| | - Fabienne Micheli
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), km 16, Salobrinho, Ilhéus, Bahia CEP 45662-900 Brazil
- CIRAD, UMR AGAP, F-34398 Montpellier, France
| | - Cláusio Antônio Ferreira de Melo
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), km 16, Salobrinho, Ilhéus, Bahia CEP 45662-900 Brazil
| | - Sarah Gomes de Oliveira
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo (USP), Rua do Matão, 14 – Butantã, São Paulo, SP CEP 05508-090 Brazil
| | - Eduardo Almeida Costa
- Núcleo de Biologia Computacional e Gestão de Informações Biotecnológicas (NBCGIB), Universidade Estadual de Santa Cruz (UESC), km 16, Salobrinho, Ilhéus, Bahia CEP 45662-900 Brazil
| | - Ronan Xavier Corrêa
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (UESC), km 16, Salobrinho, Ilhéus, Bahia CEP 45662-900 Brazil
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18
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Jiang J. Fluorescence in situ hybridization in plants: recent developments and future applications. Chromosome Res 2019; 27:153-165. [PMID: 30852707 DOI: 10.1007/s10577-019-09607-z] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/27/2019] [Accepted: 03/01/2019] [Indexed: 01/20/2023]
Abstract
Fluorescence in situ hybridization (FISH) was developed more than 30 years ago and has been the most paradigm-changing technique in cytogenetic research. FISH has been used to answer questions related to structure, mutation, and evolution of not only individual chromosomes but also entire genomes. FISH has served as an important tool for chromosome identification in many plant species. This review intends to summarize and discuss key technical development and applications of FISH in plants since 2006. The most significant recent advance of FISH is the development and application of probes based on synthetic oligonucleotides (oligos). Oligos specific to a repetitive DNA sequence, to a specific chromosomal region, or to an entire chromosome can be computationally identified, synthesized in parallel, and fluorescently labeled. Oligo probes designed from conserved DNA sequences from one species can be used among genetically related species, allowing comparative cytogenetic mapping of these species. The advances with synthetic oligo probes will significantly expand the applications of FISH especially in non-model plant species. Recent achievements and future applications of FISH and oligo-FISH are discussed.
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Affiliation(s)
- Jiming Jiang
- Department of Plant Biology, Department of Horticulture, Michigan State University, East Lansing, MI, 48824, USA.
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19
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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.
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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
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Yu F, Huang Y, Luo L, Li X, Wu J, Chen R, Zhang M, Deng Z. An improved suppression subtractive hybridization technique to develop species-specific repetitive sequences from Erianthus arundinaceus (Saccharum complex). BMC PLANT BIOLOGY 2018; 18:269. [PMID: 30400857 PMCID: PMC6220460 DOI: 10.1186/s12870-018-1471-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 10/05/2018] [Indexed: 05/17/2023]
Abstract
BACKGROUND Sugarcane has recently attracted increased attention for its potential as a source of bioethanol and methane. However, a narrow genetic base has limited germplasm enhancement of sugarcane. Erianthus arundinaceus is an important wild genetic resource that has many excellent traits for improving cultivated sugarcane via wide hybridization. Species-specific repetitive sequences are useful for identifying genome components and investigating chromosome inheritance in noblization between sugarcane and E. arundinaceus. Here, suppression subtractive hybridization (SSH) targeting E. arundinaceus-specific repetitive sequences was performed. The five critical components of the SSH reaction system, including enzyme digestion of genomic DNA (gDNA), adapters, digested gDNA concentrations, primer concentrations, and LA Taq polymerase concentrations, were improved using a stepwise optimization method to establish a SSH system suitable for obtaining E. arundinaceus-specific gDNA fragments. RESULTS Specificity of up to 85.42% was confirmed for the SSH method as measured by reverse dot blot (RDB) of an E. arundinaceus subtractive library. Furthermore, various repetitive sequences were obtained from the E. arundinaceus subtractive library via fluorescence in situ hybridization (FISH), including subtelomeric and centromeric regions. EaCEN2-166F/R and EaSUB1-127F/R primers were then designed as species-specific markers to accurately validate E. arundinaceus authenticity. CONCLUSIONS This is the first report that E. arundinaceus-specific repetitive sequences were obtained via an improved SSH method. These results suggested that this novel SSH system could facilitate screening of species-specific repetitive sequences for species identification and provide a basis for development of similar applications for other plant species.
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Affiliation(s)
- Fan Yu
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Yongji Huang
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Ling Luo
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Xueting Li
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Jiayun Wu
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
- Guangdong Key Laboratory of Sugarcane Improvement and Biorefinery, Guangdong Provincial Bioengineering Institute, Guangzhou, China
| | - Rukai Chen
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Muqing Zhang
- State Key Laboratory for protection and utilization of subtropical agro-bioresources, Guangxi University, Nanning, 530004 China
| | - Zuhu Deng
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
- State Key Laboratory for protection and utilization of subtropical agro-bioresources, Guangxi University, Nanning, 530004 China
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002 China
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21
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de Castro Nunes R, Orozco-Arias S, Crouzillat D, Mueller LA, Strickler SR, Descombes P, Fournier C, Moine D, de Kochko A, Yuyama PM, Vanzela ALL, Guyot R. Structure and Distribution of Centromeric Retrotransposons at Diploid and Allotetraploid Coffea Centromeric and Pericentromeric Regions. FRONTIERS IN PLANT SCIENCE 2018; 9:175. [PMID: 29497436 PMCID: PMC5818461 DOI: 10.3389/fpls.2018.00175] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/30/2018] [Indexed: 05/18/2023]
Abstract
Centromeric regions of plants are generally composed of large array of satellites from a specific lineage of Gypsy LTR-retrotransposons, called Centromeric Retrotransposons. Repeated sequences interact with a specific H3 histone, playing a crucial function on kinetochore formation. To study the structure and composition of centromeric regions in the genus Coffea, we annotated and classified Centromeric Retrotransposons sequences from the allotetraploid C. arabica genome and its two diploid ancestors: Coffea canephora and C. eugenioides. Ten distinct CRC (Centromeric Retrotransposons in Coffea) families were found. The sequence mapping and FISH experiments of CRC Reverse Transcriptase domains in C. canephora, C. eugenioides, and C. arabica clearly indicate a strong and specific targeting mainly onto proximal chromosome regions, which can be associated also with heterochromatin. PacBio genome sequence analyses of putative centromeric regions on C. arabica and C. canephora chromosomes showed an exceptional density of one family of CRC elements, and the complete absence of satellite arrays, contrasting with usual structure of plant centromeres. Altogether, our data suggest a specific centromere organization in Coffea, contrasting with other plant genomes.
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Affiliation(s)
- Renata de Castro Nunes
- Laboratory of Cytogenetics and Plant Diversity, Department of General Biology, Center for Biological Sciences, State University of Londrina, Londrina, Brazil
| | - Simon Orozco-Arias
- Department of Electronics and Automatization, Universidad Autónoma de Manizales, Colombia
| | | | - Lukas A. Mueller
- Boyce Thompson Institute, Cornell University, Ithaca, NY, United States
| | - Suzy R. Strickler
- Boyce Thompson Institute, Cornell University, Ithaca, NY, United States
| | | | | | - Deborah Moine
- Nestlé Institute of Health Sciences, Lausanne, Switzerland
| | - Alexandre de Kochko
- Institut de Recherche pour le Développement, UMR DIADE, EvoGec, Montpellier, France
| | - Priscila M. Yuyama
- Laboratory of Cytogenetics and Plant Diversity, Department of General Biology, Center for Biological Sciences, State University of Londrina, Londrina, Brazil
| | - André L. L. Vanzela
- Laboratory of Cytogenetics and Plant Diversity, Department of General Biology, Center for Biological Sciences, State University of Londrina, Londrina, Brazil
- *Correspondence: André L. L. Vanzela
| | - Romain Guyot
- Department of Electronics and Automatization, Universidad Autónoma de Manizales, Colombia
- Institut de Recherche pour le Développement, CIRAD, Univ. Montpellier, UMR IPME, Montpellier, France
- Romain Guyot
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22
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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: 32] [Impact Index Per Article: 5.3] [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.
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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, ;
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