Utilization of a Wheat660K SNP array-derived high-density genetic map for high-resolution mapping of a major QTL for kernel number

被引：211

作者：

Cui, Fa ^{[1
,2
,7
]}

Zhang, Na ^{[1
,6
]}

Fan, Xiao-li ^{[1
,3
]}

Zhang, Wei ^{[1
,7
]}

Zhao, Chun-hua ^{[2
]}

Yang, Li-juan ^{[4
]}

Pan, Rui-qing ^{[1
,6
]}

Chen, Mei ^{[1
,6
]}

Han, Jie ^{[1
,6
]}

Zhao, Xue-qiang ^{[7
]}

Ji, Jun ^{[1
,7
]}

Tong, Yi-ping ^{[7
]}

Zhang, Hong-xia ^{[2
]}

Jia, Ji-zeng ^{[5
]}

Zhao, Guang-yao ^{[5
]}

Li, Jun-ming ^{[1
,7
]}

机构：

[1] Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Shijiazhuang 050022, Peoples R China

[2] Ludong Unvers, Coll Agr, Genet Improvement Ctr Agr & Forest Crops, Yantai 264025, Peoples R China

[3] Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China

[4] Xinxiang Acad Agr Sci, Xinxiang 453000, Peoples R China

[5] Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China

[6] Univ Chinese Acad Sci, Beijing 10049, Peoples R China

[7] Chinese Acad Sci, State Key Lab Plant Cell & Chromosomal Engn, Beijing 100101, Peoples R China

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

基金：

中国国家自然科学基金;

关键词：

QUANTITATIVE TRAIT LOCI; YIELD-RELATED TRAITS; CONTROLLING HEADING DATE; HEXAPLOID WHEAT; GRAIN-YIELD; LINKAGE MAP; AEGILOPS-TAUSCHII; AGRONOMIC TRAITS; DRAFT GENOME; PHYSICAL MAP;

D O I：

10.1038/s41598-017-04028-6

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In crop plants, a high-density genetic linkage map is essential for both genetic and genomic researches. The complexity and the large size of wheat genome have hampered the acquisition of a high-resolution genetic map. In this study, we report a high-density genetic map based on an individual mapping population using the Affymetrix Wheat660K single-nucleotide polymorphism (SNP) array as a probe in hexaploid wheat. The resultant genetic map consisted of 119 566 loci spanning 4424.4 cM, and 119 001 of those loci were SNP markers. This genetic map showed good collinearity with the 90 K and 820 K consensus genetic maps and was also in accordance with the recently released wheat whole genome assembly. The high-density wheat genetic map will provide a major resource for future genetic and genomic research in wheat. Moreover, a comparative genomics analysis among gramineous plant genomes was conducted based on the high-density wheat genetic map, providing an overview of the structural relationships among theses gramineous plant genomes. A major stable quantitative trait locus (QTL) for kernel number per spike was characterized, providing a solid foundation for the future high-resolution mapping and map-based cloning of the targeted QTL.

引用

页数：12

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