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Sun M, Yao C, Shu Q, He Y, Chen G, Yang G, Xu S, Liu Y, Xue Z, Wu J. Telomere-to-telomere pear ( Pyrus pyrifolia) reference genome reveals segmental and whole genome duplication driving genome evolution. HORTICULTURE RESEARCH 2023; 10:uhad201. [PMID: 38023478 PMCID: PMC10681005 DOI: 10.1093/hr/uhad201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 10/01/2023] [Indexed: 12/01/2023]
Abstract
Previously released pear genomes contain a plethora of gaps and unanchored genetic regions. Here, we report a telomere-to-telomere (T2T) gap-free genome for the red-skinned pear, 'Yunhong No. 1' (YH1; Pyrus pyrifolia), which is mainly cultivated in Yunnan Province (southwest China), the pear's primary region of origin. The YH1 genome is 501.20 Mb long with a contig N50 length of 29.26 Mb. All 17 chromosomes were assembled to the T2T level with 34 characterized telomeres. The 17 centromeres were predicted and mainly consist of centromeric-specific monomers (CEN198) and long terminal repeat (LTR) Gypsy elements (≥74.73%). By filling all unclosed gaps, the integrity of YH1 is markedly improved over previous P. pyrifolia genomes ('Cuiguan' and 'Nijisseiki'). A total of 1531 segmental duplication (SD) driven duplicated genes were identified and enriched in stress response pathways. Intrachromosomal SDs drove the expansion of disease resistance genes, suggesting the potential of SDs in adaptive pear evolution. A large proportion of duplicated gene pairs exhibit dosage effects or sub-/neo-functionalization, which may affect agronomic traits like stone cell content, sugar content, and fruit skin russet. Furthermore, as core regulators of anthocyanin biosynthesis, we found that MYB10 and MYB114 underwent various gene duplication events. Multiple copies of MYB10 and MYB114 displayed obvious dosage effects, indicating role differentiation in the formation of red-skinned pear fruit. In summary, the T2T gap-free pear genome provides invaluable resources for genome evolution and functional genomics.
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Affiliation(s)
- Manyi Sun
- College of Horticulture, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, Jiangsu 210014, China
| | - Chenjie Yao
- College of Horticulture, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, Jiangsu 210014, China
| | - Qun Shu
- Institute of Horticulture, Yunnan Academy of Agricultural Sciences, Kunming 650205, China
| | - Yingyun He
- Institute of Horticulture, Yunnan Academy of Agricultural Sciences, Kunming 650205, China
| | - Guosong Chen
- College of Horticulture, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, Jiangsu 210014, China
| | - Guangyan Yang
- College of Horticulture, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, Jiangsu 210014, China
| | - Shaozhuo Xu
- College of Horticulture, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, Jiangsu 210014, China
| | - Yueyuan Liu
- College of Horticulture, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, Jiangsu 210014, China
| | - Zhaolong Xue
- College of Horticulture, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, Jiangsu 210014, China
| | - Jun Wu
- College of Horticulture, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, Jiangsu 210014, China
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Yang X, Yu H, Sun W, Ding L, Li J, Cheema J, Ramirez-Gonzalez R, Zhao X, Martín AC, Lu F, Liu B, Uauy C, Ding Y, Zhang H. Wheat in vivo RNA structure landscape reveals a prevalent role of RNA structure in modulating translational subgenome expression asymmetry. Genome Biol 2021; 22:326. [PMID: 34847934 PMCID: PMC8638558 DOI: 10.1186/s13059-021-02549-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 11/19/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Polyploidy, especially allopolyploidy, which entails merging divergent genomes via hybridization and whole-genome duplication (WGD), is a major route to speciation in plants. The duplication among the parental genomes (subgenomes) often leads to one subgenome becoming dominant over the other(s), resulting in subgenome asymmetry in gene content and expression. Polyploid wheats are allopolyploids with most genes present in two (tetraploid) or three (hexaploid) functional copies, which commonly show subgenome expression asymmetry. It is unknown whether a similar subgenome asymmetry exists during translation. We aim to address this key biological question and explore the major contributing factors to subgenome translation asymmetry. RESULTS Here, we obtain the first tetraploid wheat translatome and reveal that subgenome expression asymmetry exists at the translational level. We further perform in vivo RNA structure profiling to obtain the wheat RNA structure landscape and find that mRNA structure has a strong impact on translation, independent of GC content. We discover a previously uncharacterized contribution of RNA structure in subgenome translation asymmetry. We identify 3564 single-nucleotide variations (SNVs) across the transcriptomes between the two tetraploid wheat subgenomes, which induce large RNA structure disparities. These SNVs are highly conserved within durum wheat cultivars but are divergent in both domesticated and wild emmer wheat. CONCLUSIONS We successfully determine both the translatome and in vivo RNA structurome in tetraploid wheat. We reveal that RNA structure serves as an important modulator of translational subgenome expression asymmetry in polyploids. Our work provides a new perspective for molecular breeding of major polyploid crops.
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Affiliation(s)
- Xiaofei Yang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun, 130024, China
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Haopeng Yu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun, 130024, China
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Wenqing Sun
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Ling Ding
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Ji Li
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Jitender Cheema
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | | | - Xuebo Zhao
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Azahara C Martín
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Fei Lu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Bao Liu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Cristobal Uauy
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Yiliang Ding
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK.
| | - Huakun Zhang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun, 130024, China.
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8
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Chalhoub B, Denoeud F, Liu S, Parkin IAP, Tang H, Wang X, Chiquet J, Belcram H, Tong C, Samans B, Corréa M, Da Silva C, Just J, Falentin C, Koh CS, Le Clainche I, Bernard M, Bento P, Noel B, Labadie K, Alberti A, Charles M, Arnaud D, Guo H, Daviaud C, Alamery S, Jabbari K, Zhao M, Edger PP, Chelaifa H, Tack D, Lassalle G, Mestiri I, Schnel N, Le Paslier MC, Fan G, Renault V, Bayer PE, Golicz AA, Manoli S, Lee TH, Thi VHD, Chalabi S, Hu Q, Fan C, Tollenaere R, Lu Y, Battail C, Shen J, Sidebottom CHD, Wang X, Canaguier A, Chauveau A, Bérard A, Deniot G, Guan M, Liu Z, Sun F, Lim YP, Lyons E, Town CD, Bancroft I, Wang X, Meng J, Ma J, Pires JC, King GJ, Brunel D, Delourme R, Renard M, Aury JM, Adams KL, Batley J, Snowdon RJ, Tost J, Edwards D, Zhou Y, Hua W, Sharpe AG, Paterson AH, Guan C, Wincker P. Plant genetics. Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome. Science 2014; 345:950-3. [PMID: 25146293 DOI: 10.1126/science.1253435] [Citation(s) in RCA: 1390] [Impact Index Per Article: 139.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Oilseed rape (Brassica napus L.) was formed ~7500 years ago by hybridization between B. rapa and B. oleracea, followed by chromosome doubling, a process known as allopolyploidy. Together with more ancient polyploidizations, this conferred an aggregate 72× genome multiplication since the origin of angiosperms and high gene content. We examined the B. napus genome and the consequences of its recent duplication. The constituent An and Cn subgenomes are engaged in subtle structural, functional, and epigenetic cross-talk, with abundant homeologous exchanges. Incipient gene loss and expression divergence have begun. Selection in B. napus oilseed types has accelerated the loss of glucosinolate genes, while preserving expansion of oil biosynthesis genes. These processes provide insights into allopolyploid evolution and its relationship with crop domestication and improvement.
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Affiliation(s)
- Boulos Chalhoub
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France.
| | - France Denoeud
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France. Université d'Evry Val d'Essone, UMR 8030, CP5706, Evry, France. Centre National de Recherche Scientifique (CNRS), UMR 8030, CP5706, Evry, France
| | - Shengyi Liu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of People's Republic of China, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Isobel A P Parkin
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N 0X2, Canada.
| | - Haibao Tang
- J. Craig Venter Institute, Rockville, MD 20850, USA. Center for Genomics and Biotechnology, Fujian Agriculture and Forestry, University, Fuzhou 350002, Fujian Province, China
| | - Xiyin Wang
- Plant Genome Mapping Laboratory, University of Georgia, Athens, GA 30602, USA. Center of Genomics and Computational Biology, School of Life Sciences, Hebei United University, Tangshan, Hebei 063000, China
| | - Julien Chiquet
- Laboratoire de Mathématiques et Modélisation d'Evry-UMR 8071 CNRS/Université d'Evry val d'Essonne-USC INRA, Evry, France
| | - Harry Belcram
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Chaobo Tong
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of People's Republic of China, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Birgit Samans
- Department of Plant Breeding, Research Center for Biosystems, Land Use and Nutrition, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany
| | - Margot Corréa
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France
| | - Corinne Da Silva
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France
| | - Jérémy Just
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Cyril Falentin
- INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP) UMR1349, BP35327, 35653 Le Rheu Cedex, France
| | - Chu Shin Koh
- National Research Council Canada, 110 Gymnasium Place, Saskatoon, SK S7N 0W9, Canada
| | - Isabelle Le Clainche
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Maria Bernard
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France
| | - Pascal Bento
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France
| | - Benjamin Noel
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France
| | - Karine Labadie
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France
| | - Adriana Alberti
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France
| | - Mathieu Charles
- INRA, Etude du Polymorphisme des Génomes Végétaux, US1279, Centre National de Génotypage, CEA-IG, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Dominique Arnaud
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Hui Guo
- Plant Genome Mapping Laboratory, University of Georgia, Athens, GA 30602, USA
| | - Christian Daviaud
- Laboratory for Epigenetics and Environment, Centre National de Génotypage, CEA-IG, 2 rue Gaston Crémieux, 91000 Evry, France
| | - Salman Alamery
- Australian Centre for Plant Functional Genomics, School of Agriculture and Food Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
| | - Kamel Jabbari
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France. Cologne Center for Genomics, University of Cologne, Weyertal 115b, 50931 Köln, Germany
| | - Meixia Zhao
- Department of Agronomy, Purdue University, WSLR Building B018, West Lafayette, IN 47907, USA
| | - Patrick P Edger
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
| | - Houda Chelaifa
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France
| | - David Tack
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
| | - Gilles Lassalle
- INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP) UMR1349, BP35327, 35653 Le Rheu Cedex, France
| | - Imen Mestiri
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Nicolas Schnel
- INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP) UMR1349, BP35327, 35653 Le Rheu Cedex, France
| | - Marie-Christine Le Paslier
- INRA, Etude du Polymorphisme des Génomes Végétaux, US1279, Centre National de Génotypage, CEA-IG, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Guangyi Fan
- Beijing Genome Institute-Shenzhen, Shenzhen 518083, China
| | - Victor Renault
- Fondation Jean Dausset-Centre d'Étude du Polymorphisme Humain, 27 rue Juliette Dodu, 75010 Paris, France
| | - Philippe E Bayer
- Australian Centre for Plant Functional Genomics, School of Agriculture and Food Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
| | - Agnieszka A Golicz
- Australian Centre for Plant Functional Genomics, School of Agriculture and Food Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
| | - Sahana Manoli
- Australian Centre for Plant Functional Genomics, School of Agriculture and Food Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
| | - Tae-Ho Lee
- Plant Genome Mapping Laboratory, University of Georgia, Athens, GA 30602, USA
| | - Vinh Ha Dinh Thi
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Smahane Chalabi
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Qiong Hu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of People's Republic of China, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Chuchuan Fan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Reece Tollenaere
- Australian Centre for Plant Functional Genomics, School of Agriculture and Food Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
| | - Yunhai Lu
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Christophe Battail
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France
| | - Jinxiong Shen
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | | | - Xinfa Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of People's Republic of China, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Aurélie Canaguier
- Institut National de Recherche Agronomique (INRA)/Université d'Evry Val d'Essone, Unité de Recherche en Génomique Végétale, UMR1165, Organization and Evolution of Plant Genomes, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Aurélie Chauveau
- INRA, Etude du Polymorphisme des Génomes Végétaux, US1279, Centre National de Génotypage, CEA-IG, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Aurélie Bérard
- INRA, Etude du Polymorphisme des Génomes Végétaux, US1279, Centre National de Génotypage, CEA-IG, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Gwenaëlle Deniot
- INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP) UMR1349, BP35327, 35653 Le Rheu Cedex, France
| | - Mei Guan
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
| | - Zhongsong Liu
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
| | - Fengming Sun
- Beijing Genome Institute-Shenzhen, Shenzhen 518083, China
| | - Yong Pyo Lim
- Molecular Genetics and Genomics Laboratory, Department of Horticulture, Chungnam National University, Daejeon-305764, South Korea
| | - Eric Lyons
- School of Plant Sciences, iPlant Collaborative, University of Arizona, Tucson, AZ, USA
| | | | - Ian Bancroft
- Department of Biology, University of York, Wentworth Way, Heslington, York YO10 5DD, UK
| | - Xiaowu Wang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jinling Meng
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianxin Ma
- Department of Agronomy, Purdue University, WSLR Building B018, West Lafayette, IN 47907, USA
| | - J Chris Pires
- Division of Biological Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Graham J King
- Southern Cross Plant Science, Southern Cross University, Lismore, NSW 2480, Australia
| | - Dominique Brunel
- INRA, Etude du Polymorphisme des Génomes Végétaux, US1279, Centre National de Génotypage, CEA-IG, 2 rue Gaston Crémieux, 91057 Evry, France
| | - Régine Delourme
- INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP) UMR1349, BP35327, 35653 Le Rheu Cedex, France
| | - Michel Renard
- INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP) UMR1349, BP35327, 35653 Le Rheu Cedex, France
| | - Jean-Marc Aury
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France
| | - Keith L Adams
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
| | - Jacqueline Batley
- Australian Centre for Plant Functional Genomics, School of Agriculture and Food Sciences, University of Queensland, St. Lucia, QLD 4072, Australia. School of Plant Biology, University of Western Australia, WA 6009, Australia
| | - Rod J Snowdon
- Department of Plant Breeding, Research Center for Biosystems, Land Use and Nutrition, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany
| | - Jorg Tost
- Laboratory for Epigenetics and Environment, Centre National de Génotypage, CEA-IG, 2 rue Gaston Crémieux, 91000 Evry, France
| | - David Edwards
- Australian Centre for Plant Functional Genomics, School of Agriculture and Food Sciences, University of Queensland, St. Lucia, QLD 4072, Australia. School of Plant Biology, University of Western Australia, WA 6009, Australia.
| | - Yongming Zhou
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China.
| | - Wei Hua
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture of People's Republic of China, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Andrew G Sharpe
- National Research Council Canada, 110 Gymnasium Place, Saskatoon, SK S7N 0W9, Canada.
| | - Andrew H Paterson
- Plant Genome Mapping Laboratory, University of Georgia, Athens, GA 30602, USA.
| | - Chunyun Guan
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China.
| | - Patrick Wincker
- Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG), Genoscope, BP5706, 91057 Evry, France. Université d'Evry Val d'Essone, UMR 8030, CP5706, Evry, France. Centre National de Recherche Scientifique (CNRS), UMR 8030, CP5706, Evry, France.
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