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

Two draft sequences of Gossypium hirsutum, the most widely cultivated cotton species, provide insights into genome structure, genome rearrangement, gene evolution and cotton fiber biology. 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…

• NS
  National Science Foundation
• CI
  Cotton Incorporated

  Awards: 14-371, 07-161
• NN
  National Natural Science Foundation of China

  Awards: 31290213, 3133058, ISO1025947
• PA
  Priority Academic Program Development of Jiangsu Higher Education Institutions
• MS
  Major State Basic Research Development Program of China

  Award: 973 Program
• NK
  National Key Research and Development Program of China

  Award: 2011CB109300