干旱区生态环境知识资源中心(Arid): GWAS identifies candidate genes affecting water absorption in foxtail millet seeds

Arid

DOI	10.1007/s10725-023-01081-2
	GWAS identifies candidate genes affecting water absorption in foxtail millet seeds
	Li, Xukai; Li, Yajun; Xi, Ruyang; Hu, Mengmeng; Han, Yuanhuai; Gao, Jianhua; Wang, Xingchun
通讯作者	Wang, XC
来源期刊	PLANT GROWTH REGULATION
ISSN	0167-6903
EISSN	1573-5087
出版年	2024
卷号	102 期号:3 页码:545-553
英文摘要	Foxtail millet (Setaria italica) is a major cereal crop cultivated in the arid and semi-arid regions of northern China. However, achieving uniform emergence poses a significant challenge in foxtail millet cultivation, despite its remarkable drought resistance. Seed imbibition is an essential germination process influenced by the water uptake capacity, directly affecting the subsequent emergence. This study investigated the water absorption capacity of 300 foxtail millet germplasm resources and identified two candidate genes (Si4g02810 and Si4g02840) associated with saturated water absorption through Genome-wide Association Study (GWAS). The gene's function is hypothesized to be associated with starch synthesis. Haplotype analysis revealed the presence of multiple haplotypes on these genes in upstream, 5 ' UTR, CDS, 3 ' UTR and downstream regions. Moreover, we analyzed the extreme varieties of seed starch content and starch granule characteristics to gain insights into water uptake. Scanning electron microscopy demonstrated that high water uptake varieties exhibited loosely structured starch granules, whereas low water uptake varieties displayed compact starch granules. Our hypothesis is that the compactness of starch granules in seeds may be associated with seed imbibition.
英文关键词	Foxtail millet Water absorption GWAS Starch
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001079882300001
WOS关键词	COMPLEX TRAITS ; RICE ; GERMINATION ; RESISTANCE ; SETARIA
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405109
推荐引用方式 GB/T 7714	Li, Xukai,Li, Yajun,Xi, Ruyang,et al. GWAS identifies candidate genes affecting water absorption in foxtail millet seeds[J],2024,102(3):545-553.
APA	Li, Xukai.,Li, Yajun.,Xi, Ruyang.,Hu, Mengmeng.,Han, Yuanhuai.,...&Wang, Xingchun.(2024).GWAS identifies candidate genes affecting water absorption in foxtail millet seeds.PLANT GROWTH REGULATION,102(3),545-553.
MLA	Li, Xukai,et al."GWAS identifies candidate genes affecting water absorption in foxtail millet seeds".PLANT GROWTH REGULATION 102.3(2024):545-553.