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- Title
Mapping of Sihc1, which controls hull color, using a high-density genetic map based on restriction site-associated DNA sequencing in foxtail millet [ Setaria italica (L.) P. Beauv.].
- Authors
Wang, Jun; Yang, Huiqing; Du, Guohua; Wang, Zhilan; Zou, Hongfeng; Du, Xiaofeng; Li, Yunfei; Peng, Jianxiang; Guo, Erhu; Yong, Jianpeng; Han, Fang; Cai, Wei; Xia, Qiuju; Yuan, Guobao; Yuan, Feng; Ni, Xuemei; Zhang, Linyi; Peng, Shuzhong
- Abstract
Hull color (HC) in foxtail millet appears to be a major indicator of nutritional quality. To attempt to identify and characterize the gene or quantitative trait locus (QTL) related to HC and to provide a basis for quality and yield breeding of foxtail millet, a restriction site-associated DNA sequencing (RAD-seq) analysis was employed to reveal genome-wide single nucleotide polymorphisms (SNPs) and to genotype the F progeny from a cross between two cultivars: Heizhigu with green HC and Changnong 35 with yellow HC. A high-density linkage map spanning 1542.87 cM was constructed using 1694 bin markers, consisting of 46,256 SNP markers, and a QTL locus controlling HC was identified and temporarily named as Sihc1 ( Setaria italica hull color). Results showed that Sihc1 was located in the interval between markers M33926512 and M34281352 on the end of chromosome 6, and explained 80.26% of the phenotypic variation with a logarithm of odds ratio of 93.46. The additive and dominant effects of Sihc1 were 1.0025 and −0.9991, respectively. Sihc1 was narrowed to a 354.84 kb physical region, inclusive of 30 open reading frames, and further analysis suggested that Seita.6G226500, Seita.6G226800, Seita.6G228300, and Seita.6G228600 might be the key candidates of Sihc1.
- Subjects
FOXTAIL millet; PLANT genes; PLANT genetics; PLANT genomes; SINGLE nucleotide polymorphisms
- Publication
Molecular Breeding, 2017, Vol 37, Issue 10, p1
- ISSN
1380-3743
- Publication type
Article
- DOI
10.1007/s11032-017-0727-4