Genome sequence of the cultivated cotton gossypium arboreum

文献类型： 外文期刊

第一作者： Fuguang Li;;Guangyi Fan;;Kunbo Wang;;Fengming Sun;;Youlu Yuan;;Guoli Song;;Qin Li;;Zhiying Ma

作者： Fuguang Li;Guangyi Fan;Kunbo Wang;Fengming Sun;Youlu Yuan;Guoli Song;Qin Li;Zhiying Ma;Cairui Lu;Changsong Zou;Wenbin Chen;Xinming Liang;Haihong Shang;Weiqing Liu;Chengcheng Shi;Guanghui Xiao;Caiyun Gou;Wuwei Ye;Xun Xu;Xueyan Zhang;Hengling Wei;Zhifang Li;Guiyin Zhang;Junyi Wang;Kun Liu;Russell J Kohel;Richard G Percy;John Z Yu;Yu-Xian Zhu;Jun Wang;Shuxun Yu

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期刊名称：NATURE GENETICS （ 影响因子：38.33； 五年影响因子：36.431 ）

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收录情况： SCI

摘要： The complex allotetraploid nature of the cotton genome (AADD; 2n = 52) makes genetic, genomic and functional analyses extremely challenging. Here we sequenced and assembled the Gossypium arboreum (AA; 2n = 26) genome, a putative contributor of the A subgenome. A total of 193.6 Gb of clean sequence covering the genome by 112.6-fold was obtained by paired-end sequencing. We further anchored and oriented 90.4% of the assembly on 13 pseudochromosomes and found that 68.5% of the genome is occupied by repetitive DNA sequences. We predicted 41,330 protein-coding genes in G. arboreum. Two whole-genome duplications were shared by G. arboreum and Gossypium raimondii before speciation. Insertions of long terminal repeats in the past 5 million years are responsible for the twofold difference in the sizes of these genomes. Comparative transcriptome studies showed the key role of the nucleotide binding site (NBS)-encoding gene family in resistance to Verticillium dahliae and the involvement of ethylene in the development of cotton fiber cells.

分类号： R394

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