Genetic diversity and association mapping of forage quality in diverse bermudagrass accessions

doi:10.1007/s10681-017-2024-z

CORC > 武汉植物园 > 中国科学院武汉植物园

	Genetic diversity and association mapping of forage quality in diverse bermudagrass accessions
	Gitau, Margaret Mukami 1,2; Fan, Jibiao 1; Xie, Yan 1; Fu, Jinmin 1,3
刊名	EUPHYTICA
	2017-10-01
卷号	213 期号:10 页码:15
关键词	Population structure Kinship Phenotypic traits Variation Linkage disequilibrium Marker-trait-association
ISSN号	0014-2336
DOI	10.1007/s10681-017-2024-z
英文摘要	Bermudagrass is a warm season grass widely cultivated for turf and fodder. Nonetheless, the grass has poor forage quality because animals that consume it fail to assimilate its organic matter efficiently. Thus, identification of the marker-trait association between simple sequence repeat (SSR) markers and forage-quality-related traits in diverse bermudagrass accessions would enable efficient selection of high forage quality bermudagrass cultivars. Association mapping of 8 forage-related-quality traits with 1474 markers was conducted in 60 diverse bermudagrass accessions from five geographical regions in China. Significant variations in eight phenotypic and physiological traits were observed among the 60 accessions. A total of 1474 alleles were amplified by 104 SSR primers. The average gene diversity and polymorphic information content for the study sample were 0.2097 and 0.1748 respectively. The clustering analysis suggested that geographic origin influenced genetic distances between accessions. A total of 76 markers significantly associated with traits at P < 0.01; 73 with a single trait and 3 with two traits each. Nevertheless, only 41 significant marker-trait associations (MTAs) were observed after Bonferroni test was separately conducted for each trait. Forty-one microsatellites had significant associations with 8 forage-quality-related traits. These markers provide a feasible means of genetically improving forage quality in bermudagrass after further authentication.
资助项目	Young Scientists Fund of the National Natural Science Foundation of China[31502009] ; National Natural Science Foundation of China[31672482]
WOS研究方向	Agriculture ; Plant Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000411058300008
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1304]
专题	中国科学院武汉植物园
通讯作者	Xie, Yan; Fu, Jinmin
作者单位	1.Chinese Acad Sci, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Grad Sch, Beijing 10049, Peoples R China 3.Ludong Univ, Sch Resources & Environm Engn, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Gitau, Margaret Mukami,Fan, Jibiao,Xie, Yan,et al. Genetic diversity and association mapping of forage quality in diverse bermudagrass accessions[J]. EUPHYTICA,2017,213(10):15.
APA	Gitau, Margaret Mukami,Fan, Jibiao,Xie, Yan,&Fu, Jinmin.(2017).Genetic diversity and association mapping of forage quality in diverse bermudagrass accessions.EUPHYTICA,213(10),15.
MLA	Gitau, Margaret Mukami,et al."Genetic diversity and association mapping of forage quality in diverse bermudagrass accessions".EUPHYTICA 213.10(2017):15.