10.5061/DRYAD.8T2G6
Huang, Chun-Lin
National Museum of Natural Science
Chang, Chung-Te
National Taiwan University
Huang, Bing-Hong
National Taiwan Normal University
Chung, Jeng-Der
Taiwan Forestry Research Institute
Chen, Jui-Hung
National Taiwan Normal University
Chiang, Yu-Chung
Hwang, Shih-Ying
National Taiwan Normal University
Data from: Genetic relationships and ecological divergence in Salix
species and populations in Taiwan
Dryad
dataset
2016
Salix babylonica
Salix fulvopubescens var. tagawana
Salix cathayana
Salix warburgii
Salix taiwanalpina var. morrisonicola
Salix fargesii
Salix fulvopubescens
Salix chingiana
Salix taiwanalpina
Salix heterochroma
Salix phaidima
adaptive genetic variation
Population and species divergence
Salix kusanoi
2016-03-20T00:00:00Z
2016-03-20T00:00:00Z
en
https://doi.org/10.1007/s11295-015-0862-1
481825 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Linking ecology with evolutionary biology is important to understand how
environments drive population and species divergence. Phenotypically
diverse Salix species, such as lowland riparian willow trees and middle-
to high-elevation multistemmed shrubs and alpine dwarf shrubs, provide
opportunities for studying genetic divergence driven by ecological
factors. We used amplified fragment length polymorphism (AFLP) to quantify
the genetic variation of 185 individuals from nine populations of four
Salix species in Taiwan. Our phylogenetic analyses distinguished two
riparian species and the separation of riparian species from multistemmed
and dwarf shrub species. Variance partitioning for the total data found
that environment explained a substantially larger proportion of genetic
variation than geography. However, no genetic variation was explained by
geography alone when only compared within and between species. Spatially
structured regional environmental effects explained more variation than
pure environments in most comparisons within and between species,
suggesting that unmeasured environmental variables and/or past demographic
histories played important roles in shaping population and species
divergence. Based on forward selection analysis, annual mean temperature,
aspect, and fraction of absorbed photosynthetically active radiation were
the most influential ecological factors in shaping genetic variation
within and between species. Nevertheless, different combinations of
environmental variables correlated significantly with genetic variation
within and between species. We identified eight AFLP loci that potentially
evolved under selection intraspecifically using different outlier
detection methods. These loci correlated with more than one environmental
variable, suggesting local adaptation along environmental gradients at the
population level.
SalixaflpAmplified fragment length polymorphism (AFLP) genotyping data of
185 samples from nine populations of four Taiwanese Salix species and
eight samples from six Chinese Salix species .
China
Taiwan
Taiwan and Chna