期刊
NATURE BIOTECHNOLOGY
卷 33, 期 5, 页码 531-U252出版社
NATURE PORTFOLIO
DOI: 10.1038/nbt.3207
关键词
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资金
- Major State Basic Research Development Program of China (973 Program) [2011CB109300]
- National Natural Science Foundation of China [3133058, 31290213]
- NSF [ISO1025947]
- Fundamental Research Funds by the Central Universities [KYZ201201]
- Cotton Incorporated [07-161, 14-371]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- 111 program
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [1025947, 1444552] Funding Source: National Science Foundation
- ARS [813529, ARS-0425248] Funding Source: Federal RePORTER
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.
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