Sequencing of allotetraploid cotton (Gossypium hirsutum L. acc. TM-1) provides a resource for fiber improvement. Academic Article uri icon

abstract

  • Upland cotton is a model for polyploid crop domestication and transgenic improvement. Here we sequenced the allotetraploid Gossypium hirsutum L. acc. TM-1 genome by integrating whole-genome shotgun reads, bacterial artificial chromosome (BAC)-end sequences and genotype-by-sequencing genetic maps. We assembled and annotated 32,032 A-subgenome genes and 34,402 D-subgenome genes. Structural rearrangements, gene loss, disrupted genes and sequence divergence were more common in the A subgenome than in the D subgenome, suggesting asymmetric evolution. However, no genome-wide expression dominance was found between the subgenomes. Genomic signatures of selection and domestication are associated with positively selected genes (PSGs) for fiber improvement in the A subgenome and for stress tolerance in the D subgenome. This draft genome sequence provides a resource for engineering superior cotton lines.

published proceedings

  • Nat Biotechnol

altmetric score

  • 41.6

author list (cited authors)

  • Zhang, T., Hu, Y., Jiang, W., Fang, L., Guan, X., Chen, J., ... Chen, Z. J.

citation count

  • 1094

complete list of authors

  • Zhang, Tianzhen||Hu, Yan||Jiang, Wenkai||Fang, Lei||Guan, Xueying||Chen, Jiedan||Zhang, Jinbo||Saski, Christopher A||Scheffler, Brian E||Stelly, David M||Hulse-Kemp, Amanda M||Wan, Qun||Liu, Bingliang||Liu, Chunxiao||Wang, Sen||Pan, Mengqiao||Wang, Yangkun||Wang, Dawei||Ye, Wenxue||Chang, Lijing||Zhang, Wenpan||Song, Qingxin||Kirkbride, Ryan C||Chen, Xiaoya||Dennis, Elizabeth||Llewellyn, Danny J||Peterson, Daniel G||Thaxton, Peggy||Jones, Don C||Wang, Qiong||Xu, Xiaoyang||Zhang, Hua||Wu, Huaitong||Zhou, Lei||Mei, Gaofu||Chen, Shuqi||Tian, Yue||Xiang, Dan||Li, Xinghe||Ding, Jian||Zuo, Qiyang||Tao, Linna||Liu, Yunchao||Li, Ji||Lin, Yu||Hui, Yuanyuan||Cao, Zhisheng||Cai, Caiping||Zhu, Xiefei||Jiang, Zhi||Zhou, Baoliang||Guo, Wangzhen||Li, Ruiqiang||Chen, Z Jeffrey

publication date

  • May 2015