Understanding the wide geographic range of a clonal perennial grass: plasticity versus local adaptation
Liu, YJ; Zhang, LR; Xu, XL; Niu, HS
2016
Source PublicationAOB PLANTS
ISSN2041-2851
Volume8Pages:-
AbstractBoth phenotypic plasticity and local adaptation may allow widely distributed plant species to either acclimate or adapt to environmental heterogeneity. Given the typically low genetic variation of clonal plants across their habitats, phenotypic plasticity may be the primary adaptive strategy allowing them to thrive across a wide range of habitats. In this study, the mechanism supporting the widespread distribution of the clonal plant Leymus chinensis was determined, i.e. phenotypic plasticity or local specialization in water use efficiency (WUE; reflected by foliar delta C-13). To test whether plasticity is required for the species to thrive in different habitats, samples were collected across its distribution in the Mongolian steppe, and a controlled watering experiment was conducted with two populations at two different sites. Five populations were also transplanted from different sites into a control environment, and the foliar delta C-13 was compared between the control and original habitats, to test for local specialization in WUE. Results demonstrated decreased foliar delta C-13 with increasing precipitation during controlled watering experiments, with divergent responses between the two populations assessed. Change in foliar delta C-13 (-3.69 parts per thousand) due to water addition was comparable to fluctuations of foliar delta C-13 observed in situ (-4.83 parts per thousand). Foliar delta C-13 differed by -0.91 parts per thousand between two transplanted populations; however, this difference was not apparent between the two populations when growing in their original habitats. Findings provide evidence that local adaptation affects foliar delta C-13 much less than phenotypic plasticity. Thus, plasticity in WUE is more important than local adaptation in allowing the clonal plant L. chinensis to occupy a wide range of habitats in the Mongolian steppe.
SubtypeJournal
Keyworddelta C-13 ecotype genetic differentiation Leymus chinensis phenotypic plasticity species distribution water use efficiency
Subject AreaPlant Sciences ; Environmental Sciences & Ecology
WOS Subject ExtendedPlant Sciences ; Ecology
WOS KeywordCARBON-ISOTOPE DISCRIMINATION ; LEYMUS-CHINENSIS POACEAE ; CHINA TRANSECT NECT ; PHENOTYPIC PLASTICITY ; FOLIAR DELTA-C-13 ; GENETIC-VARIATION ; INNER-MONGOLIA ; USE EFFICIENCY ; PLANTS ; POPULATIONS
Indexed BySCI
Language英语
WOS IDWOS:000369031300003
PublisherOXFORD UNIV PRESS
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44319
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Liu, YJ,Zhang, LR,Xu, XL,et al. Understanding the wide geographic range of a clonal perennial grass: plasticity versus local adaptation[J]. AOB PLANTS,2016,8:-.
APA Liu, YJ,Zhang, LR,Xu, XL,&Niu, HS.(2016).Understanding the wide geographic range of a clonal perennial grass: plasticity versus local adaptation.AOB PLANTS,8,-.
MLA Liu, YJ,et al."Understanding the wide geographic range of a clonal perennial grass: plasticity versus local adaptation".AOB PLANTS 8(2016):-.
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