Montane refugia isolation and plateau population expansion: Phylogeography of Sino-Himalayan endemic Spenceria ramalana (Rosaceae)
Yue, Liang-Liang1,2,3; Sun, Hang1
Corresponding AuthorSun,H (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Biodivers & Biogeog,Kunming 650204,Peoples R China. ; hsun@mail.kib.ac.cn
2014-05-01
Source PublicationJOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN1674-4918
Volume52Issue:3Pages:326-340
Abstract

Climate oscillations and landscape heterogeneity make the historical population processes of organisms of the Qinghai-Tibet Plateau quite complex. We used chloroplast DNA sequences and amplified fragment length polymorphism (AFLPs) to study the phylogeography and genetic variation of the Qinghai-Tibet Plateau endemic Spenceria ramalana Trimen. The parsimony network contains two star-like evolutionary units, nested into two nested clades, coinciding with geographic population groups indicated by SAMOVA software. The central group shows genetic homogeneity, indicating a bottleneck or founder effect of population dynamics. Margin groups contribute more haplotype diversity (C-T), indicating potential refugia. Several expansion events during several interglacial periods were detected. The latest expansion of the eastern population contributed to the modern population structure of the central area. Four AFLP clusters were detected. Higher C-T, a relict pattern of haplotype distribution and DW values of marginal populations, confirmed the location of potential montane refugia. Relict distribution pattern, nested clade phylogeographic analysis conclusions, and restricted gene flow detected by AFLPs indicated an isolation pattern of the populations of montane areas. Heterogeneity of landscape of the western and southern montane areas could be the main barrier for gene flow. Moisture conditions and ecotype transformation might help to build the phylogeographic pattern of this species. Neither chloroplast DNA markers nor AFLP was able to differentiate the two varieties of this species.

KeywordEcotype Transformation Phylogeography Population Expansion Qinghai-tibet Plateau Refugia Spenceria Ramalana
Subject AreaPlant Sciences
DOI10.1111/jse.12038
Indexed BySCI
Language英语
WOS IDWOS:000335400300009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/18136
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Yunnan Entry Exit Inspect & Quarantine Bur, State Key Laborotary Species Identificat, Kunming 650228, Peoples R China
Recommended Citation
GB/T 7714
Yue, Liang-Liang,Sun, Hang. Montane refugia isolation and plateau population expansion: Phylogeography of Sino-Himalayan endemic Spenceria ramalana (Rosaceae)[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2014,52(3):326-340.
APA Yue, Liang-Liang,&Sun, Hang.(2014).Montane refugia isolation and plateau population expansion: Phylogeography of Sino-Himalayan endemic Spenceria ramalana (Rosaceae).JOURNAL OF SYSTEMATICS AND EVOLUTION,52(3),326-340.
MLA Yue, Liang-Liang,et al."Montane refugia isolation and plateau population expansion: Phylogeography of Sino-Himalayan endemic Spenceria ramalana (Rosaceae)".JOURNAL OF SYSTEMATICS AND EVOLUTION 52.3(2014):326-340.
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