Light plasticity of germination on the eastern Tibetan Plateau: Phylogeny, trait, and environmental correlates

	Light plasticity of germination on the eastern Tibetan Plateau: Phylogeny, trait, and environmental correlates
	Zhang, CH; Zhou, HK; Du, GZ; Ma, Z
刊名	JOURNAL OF PLANT PHYSIOLOGY
	2022
卷号	272
英文摘要	Seeds often exhibit great plasticity of germination in response to environmental variability and uncertainty. The causes of this plasticity, however, remain poorly understood, and comparative phylogenic analyses of such plasticity are rare. Here, we analyzed a field germination dataset including 474 species exposed to three different levels of light availability, using comparative phylogenetic methods. We calculated the plasticity of germination in response to light availability (PGGP) based on the maximum germination proportion (GP(max)), PGT50 based on the time required to reach 50% of GP(max), PG(RGV) based on the relative germination velocity (RGV), and PG(Total )based on all three of these germination traits. We found that closely related species shared similar light plasticity of germination behavior. Different aspects of germination plasticity in response to light availability were related to specific traits or local environment. PGGP was associated with adult longevity and local water habitat, while PGT50 was related to seed mass and local water habitat, and PG(RGV) was marginally significantly related to plant height. PG(Total) was significantly associated with adult longevity and water habitat. These results suggested that different aspects of germination plasticity were located at specific niche dimension, and local habitats with sufficient soil moisture induced great plasticity germination in response to light environment. As such, they can simplify our understanding of germination, promote the exploration of the general law of germination, and further increase our understanding of species diversity maintenance, adaptation, and evolution from the perspective of germination.
内容类型	期刊论文
源URL	[http://210.75.249.4/handle/363003/61232]
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	Zhang, CH,Zhou, HK,Du, GZ,et al. Light plasticity of germination on the eastern Tibetan Plateau: Phylogeny, trait, and environmental correlates[J]. JOURNAL OF PLANT PHYSIOLOGY,2022,272.
APA	Zhang, CH,Zhou, HK,Du, GZ,&Ma, Z.(2022).Light plasticity of germination on the eastern Tibetan Plateau: Phylogeny, trait, and environmental correlates.JOURNAL OF PLANT PHYSIOLOGY,272.
MLA	Zhang, CH,et al."Light plasticity of germination on the eastern Tibetan Plateau: Phylogeny, trait, and environmental correlates".JOURNAL OF PLANT PHYSIOLOGY 272(2022).