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The draft genome of a diploid cotton Gossypium raimondii

Open access
Wang, Kunbo, Wang, Zhiwen, Li, Fuguang, Ye, Wuwei, Wang, Junyi, Song, Guoli, Yue, Zhen, Cong, Lin, Shang, Haihong, Zhu, Shilin, Zou, Changsong, Li, Qin, Yuan, Youlu, Lu, Cairui, Wei, Hengling, Gou, Caiyun, Zheng, Zequn, Yin, Ye, Zhang, Xueyan, Liu, Kun, Wang, Bo, Song, Chi, Shi, Nan, Kohel, Russell J, Percy, Richard G, Yu, John Z, Zhu, Yu-Xian, Wang, Jun, Yu, Shuxun·2012·Nature Genetics

Abstract

Yuxian Zhu and colleagues report the draft genome of a diploid cotton Gossypium raimondii. This species is a wild South American cotton, whose progenitor is thought to have been the contributor of the D subgenome of the allotetraploid commercial species Gossypium hirsutum and Gossypium barbadense, which account for ~95% of the worldwide cotton crop. We have sequenced and assembled a draft genome of G. raimondii, whose progenitor is the putative contributor of the D subgenome to the economically important fiber-producing cotton species Gossypium hirsutum and Gossypium barbadense. Over 73% of the assembled sequences were anchored on 13 G. raimondii chromosomes. The genome contains 40,976 protein-coding genes, with 92.2% of these further confirmed by transcriptome data. Evidence of the hexaploidization event shared by the eudicots as well as of a cotton-specific whole-genome duplication approximately 13–20 million years ago was observed. We identified 2,355 syntenic blocks in the G. raimondii genome, and we found that approximately 40% of the paralogous genes were present in more than 1 block, which suggests that this genome has undergone substantial chromosome rearrangement during its evolution. Cotton, and probably Theobroma cacao, are the only sequenced plant species that possess an authentic CDN1 gene family for gossypol biosynthesis, as revealed by phylogenetic analysis.

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Metadata

Authors
Wang, K., Wang, Z., Li, F., Ye, W., Wang, J., Song, G., Yue, Z., Cong, L., Shang, H., Zhu, S., Zou, C., Li, Q., Yuan, Y., Lu, C., Wei, H., Gou, C., Zheng, Z., Yin, Y., Zhang, X., Liu, K., Wang, B., Song, C., Shi, N., Kohel, R. J., Percy, R. G., Yu, J. Z., Zhu, Y.-X., Wang, J., & Yu, S.
Venue
Nature Genetics
Published
2012-08-26
Volume
44
Issue
10
Pages
1098-1103
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2167737093
Cited by
1,009
References
38
FWCI
77.88
Type
journal article
Language
en
Open access
hybrid

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