Screening of diverse tall fescue population for salinity tolerance based on SSR marker-physiological trait association

doi:10.1007/s10681-018-2281-5

CORC > 武汉植物园 > 中国科学院武汉植物园

	Screening of diverse tall fescue population for salinity tolerance based on SSR marker-physiological trait association
	Fu, Jinmin 1; Zhang, Yinkun 1; Shao, An 1; Fan, Shugao 1; Wang, Guangyang 2; Li, Xiaoning 2; Amombo, Erick 2
刊名	EUPHYTICA
	2018-12-01
卷号	214 期号:12 页码:14
关键词	Tall fescue Salt stress Functional traits Association mapping Population structure
ISSN号	0014-2336
DOI	10.1007/s10681-018-2281-5
英文摘要	Soil salinity is a notorious abiotic stress which constrains plant growth and limits crop productivity. Recent advances in phytogenetics especially the discovery of marker-trait association have facilitated the efficient selection of stress-tolerant crops. The objective of this study was to evaluate tall fescue (Festuca arundinacea Schreb.) accessions growing under salt stress in order to identify salt-tolerant and salt-sensitive genotypes using physiological and molecular markers. The population consisted of 114 diverse tall fescue accessions which were assessed using 99 simple sequence repeat (SSR) markers and five functional physiological traits i.e., turf quality, leaf water content, chlorophyll content, relative growth rate, and evapotranspiration rate. Salinity stress induced great variations among the functional physiological traits and there were significant correlations among them. The population structure analysis revealed two distinct populations, while association mapping between the SSRs and phenotypic traits identified significant associations. In addition, the accessions that maintained relatively higher physiological traits had a significantly lower accumulation of Na+ and Cl- in the roots compared to those whose functional traits declined. We identified six most salt-tolerant accessions due to their high values of physiological parameters and significantly low accumulation of Na+ and Cl- in the roots. Similarly, we identified six accessions we considered to be most salt-sensitive as observed by high Na+ and Cl- accumulation plus a decline in the physiological activities. Our findings are helpful to tall fescue breeders with a goal of producing tall fescue cultivars with enhanced salt tolerance.
资助项目	China National Science Foundation (NSFC)[31470363] ; China National Science Foundation (NSFC)[31772662]
WOS研究方向	Agriculture ; Plant Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000449762000002
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/6084]
专题	中国科学院武汉植物园
通讯作者	Fu, Jinmin
作者单位	1.Ludong Univ, Coastal Salin Tolerant Grass Engn & Technol Res C, Yantai, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Fu, Jinmin,Zhang, Yinkun,Shao, An,et al. Screening of diverse tall fescue population for salinity tolerance based on SSR marker-physiological trait association[J]. EUPHYTICA,2018,214(12):14.
APA	Fu, Jinmin.,Zhang, Yinkun.,Shao, An.,Fan, Shugao.,Wang, Guangyang.,...&Amombo, Erick.(2018).Screening of diverse tall fescue population for salinity tolerance based on SSR marker-physiological trait association.EUPHYTICA,214(12),14.
MLA	Fu, Jinmin,et al."Screening of diverse tall fescue population for salinity tolerance based on SSR marker-physiological trait association".EUPHYTICA 214.12(2018):14.