Genetic basis of traits related to stomatal conductance in wheat cultivars in response to drought stress

doi:10.1007/s11099-015-0114-5

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	Genetic basis of traits related to stomatal conductance in wheat cultivars in response to drought stress
	Wang, S. G.1; Jia, S. S.1; Sun, D. Z.1; Wang, H. Y.1; Dong, F. F.1; Ma, H. X.1; Jing, R. L.2; Ma, G.3
刊名	PHOTOSYNTHETICA
	2015
卷号	53 期号:2 页码:299-305
关键词	drought stress photosynthetic rate quantitative trait loci stomatal conductance transpiration rate wheat
ISSN号	0300-3604
DOI	10.1007/s11099-015-0114-5
通讯作者	Wang, S. G.
英文摘要	The genetic basis of stomatal conductance (g (s)), net photosynthetic rate (P (N)), and transpiration rate (E) was explored by using a wheat doubled haploid population from a cross of Hanxuan10 and Lumai 14. The above three traits were evaluated in wheat flag leaves at 10, 20, 30 days after anthesis under drought stress (DS) and well-watered (WW), and quantitative trait loci (QTL) were analyzed. Expression of the traits during the grain filling stage showed downward trends under both conditions, but expression of three phenotypes were stronger under WW than those under DS. Extremely significant positive correlations were established among the traits at all growth stages under both conditions. A total of 18 additive QTLs for those traits were identified on 10 chromosomes. Among them, two batches of nine additive QTLs were associated with the target traits under DS and WW, respectively. Two additive QTLs for g (s) and E, two for g (s) and P (N), six for g (s), P (N), and E clustered at the same or near the region (colocation) of chromosomes 4A, 2B, and 7B, respectively. This provided genetic basis for close phenotype correlations among g (s), P (N), and E. Furthermore, QTLs for g (s), P (N), and E near Xgwm577 and Xgwm611 located on 7B chromosome were linked to previously reported QTLs regulating a SPAD value and the chlorophyll a/b ratio under dark-induced condition. This finding indicated that these QTLs on 7B chromosome might be involved in the process of wheat leaf senescence.
学科主题	Plant Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000354955000017
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4702]
专题	作物科学研究所
作者单位	1.Shanxi Agr Univ, Coll Agron, Taigu 030801, Shanxi, Peoples R China 2.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China 3.Shanxi Acad Agr Sci, Wheat Res Inst, Linfen 041000, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, S. G.,Jia, S. S.,Sun, D. Z.,et al. Genetic basis of traits related to stomatal conductance in wheat cultivars in response to drought stress[J]. PHOTOSYNTHETICA,2015,53(2):299-305.
APA	Wang, S. G..,Jia, S. S..,Sun, D. Z..,Wang, H. Y..,Dong, F. F..,...&Ma, G..(2015).Genetic basis of traits related to stomatal conductance in wheat cultivars in response to drought stress.PHOTOSYNTHETICA,53(2),299-305.
MLA	Wang, S. G.,et al."Genetic basis of traits related to stomatal conductance in wheat cultivars in response to drought stress".PHOTOSYNTHETICA 53.2(2015):299-305.