文献类型： 外文期刊
作者： Bai, Yixiong 1 ; Zhao, Xiaohong 2 ; Yao, Xiaohua 2 ; Yao, Youhua 2 ; An, Likun 2 ; Li, Xin 2 ; Wang, Yong 1 ; Gao, Xin 1 ; Jia, Yatao 1 ; Guan, Lulu 1 ; Li, Man 1 ; Wu, Kunlun 2 ; Wang, Zhonghua 1 ;
作者机构： 1.Northwest A&F Univ, Coll Agron, State Key Lab Crop Stress Biol Arid Areas, Yangling, Shaanxi, Peoples R China
2.Qinghai Univ, Qinghai Acad Agr & Forestry Sci, Qinghai Key Lab Hulless Barley Genet & Breeding, Xining, Qinghai, Peoples R China
3.Chongqing Inst Med Plant Cultivat, Good Agr Practices Res Ctr Tradit, Chongqing, Peoples R China
期刊名称：PLOS ONE （ 影响因子：3.752； 五年影响因子：4.069 ）
ISSN： 1932-6203
年卷期： 2021 年 16 卷 12 期
页码：
收录情况： SCI
摘要： Hulless barley (Hordeum vulgare L. var. nudum), also called naked barley, is a unique variety of cultivated barley. The genome-wide specific length amplified fragment sequencing (SLAF-seq) method is a rapid deep sequencing technology that is used for the selection and identification of genetic loci or markers. In this study, we collected 300 hulless barley accessions and used the SLAF-seq method to identify candidate genes involved in plant height (PH) and tiller number (TN). We obtained a total of 1407 M paired-end reads, and 228,227 SLAF tags were developed. After filtering using an integrity threshold of >0.8 and a minor allele frequency of >0.05, 14,504,892 single-nucleotide polymorphisms (SNP) loci were screened out. The remaining SNPs were used for the construction of a neighbour-joining phylogenetic tree, and the three subcluster members showed no obvious differentiation among regional varieties. We used a genome wide association study approach to identify 1006 and 113 SNPs associated with TN and PH, respectively. Based on best linear unbiased predictors (BLUP), 41 and 29 SNPs associated with TN and PH, respectively. Thus, several of genes, including Hd3a and CKX5, may be useful candidates for the future genetic breeding of hulless barley. Taken together, our results provide insight into the molecular mechanisms controlling barley architecture, which is important for breeding and yield.
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