Phenotypic plasticity of Thellungiella salsaginea in response to saline stress

	Phenotypic plasticity of Thellungiella salsaginea in response to saline stress
	Yao, B. Q. ; Zhao, C. M. ; Deng, J. M. ; Zhou, H. K. ; Zhao, X. Q. ; Liu, J. Q. ; Deng, JM (reprint author), Lanzhou Univ, Sch Life Sci, Minist Educ, Key Lab Arid & Grassland Ecol,Div Mol Ecol, Lanzhou 730000, Peoples R China.
刊名	EVOLUTIONARY ECOLOGY RESEARCH ; Yao, BQ; Zhao, CM; Deng, JM; Zhou, HK; Zhao, XQ; Liu, JQ.Phenotypic plasticity of Thellungiella salsaginea in response to saline stress,EVOLUTIONARY ECOLOGY RESEARCH,2013,15(7):829-846
	2013-10-01
英文摘要	Background: Theoretical and empirical studies have shown that phenotypic plasticity can contribute to plant fitness by augmenting the ability of a plant to adapt to or tolerate novel conditions. Genetic analysis of Thellungiella salsaginea (alt cress, Brassicaceae) with neutral nuclear markers revealed no genetic variation within or among populations despite the wide variety of phenotypes in this species. Phenotypic variation is likely due to plasticity. Goal: To examine the characteristics of phenotypic plasticity and its intrinsic constraint (i.e. trait integration) of several phenotypic traits in response to salt stress in populations of T. salsaginea with a homogeneous, neutral genetic background. Organism: Thellungiella salsaginea is a halophyte that is widely distributed in the saline regions of northern China. Methods: Seeds were collected from seven natural populations at distantly separated locations along a saline gradient. Plants were grown from seeds in a growth chamber, and growth and physiological traits were measured under conditions of saline stress. Experiments were performed in a greenhouse at Lanzhou University, China. Results: All traits exhibited considerable plasticity in response to the various levels of salinity. Moreover, various patterns in plasticity were found among the seven populations. The degrees of trait integration were relatively low (mean difference of the correlation coefficients = 0.711). Moreover, the integration patterns varied between individual traits and treatments among populations. Thus, the ability of this species to adapt should be attributed to high plasticity and low integration, as well as to the various patterns of plasticity and integration among populations, which probably resulted from epigenetic changes among the populations.; Background: Theoretical and empirical studies have shown that phenotypic plasticity can contribute to plant fitness by augmenting the ability of a plant to adapt to or tolerate novel conditions. Genetic analysis of Thellungiella salsaginea (alt cress, Brassicaceae) with neutral nuclear markers revealed no genetic variation within or among populations despite the wide variety of phenotypes in this species. Phenotypic variation is likely due to plasticity.
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/3913]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Yao, B. Q.,Zhao, C. M.,Deng, J. M.,et al. Phenotypic plasticity of Thellungiella salsaginea in response to saline stress[J]. EVOLUTIONARY ECOLOGY RESEARCH, Yao, BQ; Zhao, CM; Deng, JM; Zhou, HK; Zhao, XQ; Liu, JQ.Phenotypic plasticity of Thellungiella salsaginea in response to saline stress,EVOLUTIONARY ECOLOGY RESEARCH,2013,15(7):829-846,2013.
APA	Yao, B. Q..,Zhao, C. M..,Deng, J. M..,Zhou, H. K..,Zhao, X. Q..,...&Deng, JM .(2013).Phenotypic plasticity of Thellungiella salsaginea in response to saline stress.EVOLUTIONARY ECOLOGY RESEARCH.
MLA	Yao, B. Q.,et al."Phenotypic plasticity of Thellungiella salsaginea in response to saline stress".EVOLUTIONARY ECOLOGY RESEARCH (2013).