Divergence in Life History Traits between Two Populations of a Seed-Dimorphic Halophyte in Response to Soil Salinity

doi:10.3732/apps.1700084

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	Divergence in Life History Traits between Two Populations of a Seed-Dimorphic Halophyte in Response to Soil Salinity
	Yang, Fan 3; Baskin, Jerry M.; Baskin, Carol C.; Yang, Xuejun ; Cao, Dechang ; Huang, Zhenying
刊名	FRONTIERS IN PLANT SCIENCE
	2017
卷号	8
关键词	halophyte plant life history traits population divergence reproductive allocation seed germination seed heteromorphism seed morph ratio
ISSN号	1664-462X
DOI	10.3732/apps.1700084
文献子类	Article
英文摘要	Production of heteromorphic seeds is common in halophytes growing in arid environments with strong spatial and temporal heterogeneity. However, evidence for geographic variation (reflecting local adaptation) is almost nonexistent. Our primary aims were to compare the life history traits of two desert populations of this halophytic summer annual Suaeda corniculata subsp. mongolica and to investigate the phenotypic response of its plant and heteromorphic seeds to different levels of salt stress. Dimorphic seeds (F-1) of the halophyte S. corniculata collected from two distant populations (F-0) that differ in soil salinity were grown in a common environment under different levels of salinity to minimize the carryover effects from the field environment and tested for variation in plant (F-1) and seed (F-2) traits. Compared to F-1 plants grown in low soil salinity, those grown in high salinity (> 0.2 mol.L-1) were smaller and produced fewer seeds but had a higher reproductive allocation and a higher non-dormant brown seed: dormant black seed ratio. High salinity during plant growth decreased germination percentage of F2 black seeds but had no effect on F2 brown seeds. Between population differences in life history traits in the common environment corresponded with those in the natural populations. Phenotypic differences between the two populations were retained in F1 plants and in F-2 seeds in the common environment, which suggests that the traits are genetically based. Our results indicate that soil salinity plays an ecologically important role in population regeneration of S. corniculata by influencing heteromorphic seed production in the natural habitat.
学科主题	Plant Sciences
出版地	LAUSANNE
WOS关键词	ADAPTIVE TRANSGENERATIONAL PLASTICITY ; SALT TOLERANCE ; HETEROTHECA-LATIFOLIA ; HETEROSPERMA-PINNATUM ; SUAEDA-ARALOCASPICA ; ACHENE DIMORPHISM ; GERMINATION ; PLANT ; ECOLOGY ; STRESS
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000418882700003
资助机构	Key Basic Research and Development Plan of P. R. China [2016YFC050080502] ; National Natural Science Foundation of P. R. ChinaNational Natural Science Foundation of China (NSFC) [31370705, 31570416, 31600331]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/22326]
专题	植被与环境变化国家重点实验室
作者单位	1.Baskin, Jerry M.; Baskin, Carol C.] Univ Kentucky, Dept Biol, Lexington, KY USA 2.Baskin, Carol C.] Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY USA 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 4.Chengde Med Univ, Inst Sericulture, Chengde, Peoples R China
推荐引用方式 GB/T 7714	Yang, Fan,Baskin, Jerry M.,Baskin, Carol C.,et al. Divergence in Life History Traits between Two Populations of a Seed-Dimorphic Halophyte in Response to Soil Salinity[J]. FRONTIERS IN PLANT SCIENCE,2017,8.
APA	Yang, Fan,Baskin, Jerry M.,Baskin, Carol C.,Yang, Xuejun,Cao, Dechang,&Huang, Zhenying.(2017).Divergence in Life History Traits between Two Populations of a Seed-Dimorphic Halophyte in Response to Soil Salinity.FRONTIERS IN PLANT SCIENCE,8.
MLA	Yang, Fan,et al."Divergence in Life History Traits between Two Populations of a Seed-Dimorphic Halophyte in Response to Soil Salinity".FRONTIERS IN PLANT SCIENCE 8(2017).