作者
Andrew H Paterson, Jonathan F Wendel, Heidrun Gundlach, Hui Guo, Jerry Jenkins, Dianchuan Jin, Danny Llewellyn, Kurtis C Showmaker, Shengqiang Shu, Joshua Udall, Mi-jeong Yoo, Robert Byers, Wei Chen, Adi Doron-Faigenboim, Mary V Duke, Lei Gong, Jane Grimwood, Corrinne Grover, Kara Grupp, Guanjing Hu, Tae-ho Lee, Jingping Li, Lifeng Lin, Tao Liu, Barry S Marler, Justin T Page, Alison W Roberts, Elisson Romanel, William S Sanders, Emmanuel Szadkowski, Xu Tan, Haibao Tang, Chunming Xu, Jinpeng Wang, Zining Wang, Dong Zhang, Lan Zhang, Hamid Ashrafi, Frank Bedon, John E Bowers, Curt L Brubaker, Peng W Chee, Sayan Das, Alan R Gingle, Candace H Haigler, David Harker, Lucia V Hoffmann, Ran Hovav, Donald C Jones, Cornelia Lemke, Shahid Mansoor, Mehboob ur Rahman, Lisa N Rainville, Aditi Rambani, Umesh K Reddy, Jun-kang Rong, Yehoshua Saranga, Brian E Scheffler, Jodi A Scheffler, David M Stelly, Barbara A Triplett, Allen Van Deynze, Maite FS Vaslin, Vijay N Waghmare, Sally A Walford, Robert J Wright, Essam A Zaki, Tianzhen Zhang, Elizabeth S Dennis, Klaus FX Mayer, Daniel G Peterson, Daniel S Rokhsar, Xiyin Wang, Jeremy Schmutz
发表日期
2012/12/20
期刊
Nature
卷号
492
期号
7429
页码范围
423-427
出版商
Nature Publishing Group UK
简介
Polyploidy often confers emergent properties, such as the higher fibre productivity and quality of tetraploid cottons than diploid cottons bred for the same environments. Here we show that an abrupt five- to sixfold ploidy increase approximately 60 million years (Myr) ago, and allopolyploidy reuniting divergent Gossypium genomes approximately 1–2 Myr ago, conferred about 30–36-fold duplication of ancestral angiosperm (flowering plant) genes in elite cottons (Gossypium hirsutum and Gossypium barbadense), genetic complexity equalled only by Brassica among sequenced angiosperms. Nascent fibre evolution, before allopolyploidy, is elucidated by comparison of spinnable-fibred Gossypium herbaceum A and non-spinnable Gossypium longicalyx F genomes to one another and the outgroup D genome of non-spinnable Gossypium raimondii. The sequence of a G. hirsutum AtDt (in which ‘t’ indicates tetraploid …
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