Advanced   Register
XTBG OpenIR  > 植物进化生态研究组  > 期刊论文

title: Ecological divergence of two closely related Roscoea species associated with late Quaternary climate change
author: Zhao, Jian-Li;  Gugger, Paul F.;  Xia, Yong-Mei;  Li, Qing-Jun
Issued Date: 2016
Abstract: AimEcological differentiation of closely related species has attracted wide attention to explore its evolutionary significance in speciation. In particular, the prevalence of ecological speciation of sister species driven by Quaternary climate changes is debated. Here, we used two parapatric sister species, Roscoea humeana and R. cautleoides, to test whether ecological speciation was associated with Quaternary climate changes in these taxa.

LocationHengduan-Mountain Region (HMR), south-west of China.

MethodsNuclear ribosomal (ITS) and chloroplast DNA (cpDNA: psbA-trnH and trnL-trnF) were sequenced from 200 individuals. Gene genealogies were reconstructed using network, Bayesian inference and maximum likelihood methods. Interspecific divergence times were estimated with an isolation with migration model. Suitable habitats for each species were estimated with ecological niche modelling using Maxent and BIOCLIM. Niche overlap and niche divergence were tested using Schoener's D and Warren's I. Principal components analysis (PCA), multivariate analysis of variance (MANOVA) and discriminant function analysis (DFA) were also used to test ecological differentiation.

ResultsGene genealogies indicated that the low-elevational species R. cautleoides was derived from the high-elevational species R. humeana. Divergence among species occurred during the middle to late Quaternary (0.01-1.48Ma). The species distribution and phylogeographical pattern were inconsistent with a geographical barrier. Niche models and statistical analyses showed significant ecological differentiation.

Main conclusionsDivergence between R. humeana and R. cautleoides was recent and coincident with Quaternary climate cycles. Ecological niche differentiation within Quaternary refugia may have promoted speciation.
Source: JOURNAL OF BIOGEOGRAPHY
Appears in Collections:植物进化生态研究组_期刊论文

Files in This Item:

File SizeFormat
Ecological divergence of two closely related Roscoea species associated with late Quaternary climate change.pdf1317KbAdobe PDFView  Download


全文许可: Creative Commons 署名-非商业性使用-相同方式共享 3.0

Recommended Citation:
Zhao, Jian-Li,Gugger, Paul F.,Xia, Yong-Mei,et al. Ecological Divergence Of Two Closely Related Roscoea Species Associated With Late Quaternary Climate Change[J]. Journal Of Biogeography,2016,43(10):1990-2001.

SCI Citaion Data:
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Zhao, Jian-Li]'s Articles
 [Gugger, Paul F.]'s Articles
 [Xia, Yong-Mei]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Zhao, Jian-Li]‘s Articles
 [Gugger, Paul F.]‘s Articles
 [Xia, Yong-Mei]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace