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Nature genetics v.50 no.6, 2018년, pp.803 - 813   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Resequencing a core collection of upland cotton identifies genomic variation and loci influencing fiber quality and yield

Ma, Zhiying    (North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, China. mzhy@hebau.edu.cn   ); He, Shoupu    (State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, China   ); Wang, Xingfen    (North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, China. cotton@hebau.edu.cn   ); Sun, Junling    (State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, China   ); Zhang, Yan    (North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, China   ); Zhang, Guiyin    (North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, China   ); Wu, Liqiang    (North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, China   ); Li, Zhikun    (North China Key Laboratory for Crop Germplasm Resources o  ); Liu, Zhihao   Sun, Gaofei   Yan, Yuanyuan   Jia, Yinhua   Yang, Jun   Pan, Zhaoe   Gu, Qishen   Li, Xueyuan   Sun, Zhengwen   Dai, Panhong   Liu, Zhengwen   Gong, Wenfang   Wu, Jinhua   Wang, Mi   Liu, Hengwei   Feng, Keyun   Ke, Huifeng   Wang, Junduo   Lan, Hongyu   Wang, Guoning   Peng, Jun   Wang, Nan   Wang, Liru   Pang, Baoyin   Peng, Zhen   Li, Ruiqiang   Tian, Shilin   Du, Xiongming  
  • 초록  

    Upland cotton is the most important natural-fiber crop. The genomic variation of diverse germplasms and alleles underpinning fiber quality and yield should be extensively explored. Here, we resequenced a core collection comprising 419 accessions with 6.55-fold coverage depth and identified approximately 3.66 million SNPs for evaluating the genomic variation. We performed phenotyping across 12 environments and conducted genome-wide association study of 13 fiber-related traits. 7,383 unique SNPs were significantly associated with these traits and were located within or near 4,820 genes; more associated loci were detected for fiber quality than fiber yield, and more fiber genes were detected in the D than the A subgenome. Several previously undescribed causal genes for days to flowering, fiber length, and fiber strength were identified. Phenotypic selection for these traits increased the frequency of elite alleles during domestication and breeding. These results provide targets for molecular selection and genetic manipulation in cotton improvement.


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