journal article May 30, 2013

Geological and ecological factors drive cryptic speciation of yews in a biodiversity hotspot

New Phytologist Vol. 199 No. 4 pp. 1093-1108 · Wiley
View at Publisher Save 10.1111/nph.12336
Abstract
Summary


The interplay of orographic uplift and climatic changes in the Himalaya‐Hengduan Mountains region (HHM) have had a key role in speciation and population demography. To gain further insight into these processes, we investigated their effects on Taxus wallichiana by combining molecular phylogeography and species distribution modeling.

Molecular data were obtained from 43 populations of T. wallichiana. Nineteen climatic variables were analyzed alongside genetic discontinuities. Species distribution modeling was carried out to predict potential past distribution ranges.

Two distinct lineages were identified, which diverged c. 4.2 (2.0–6.5) million years ago (Ma), a timescale that corresponds well with the recent uplift of the Qinghai‐Tibet Plateau and subsequent climatic changes of the region. Correlations with climatic variables also suggest that ecological factors may have further reinforced the separation of the two lineages. Both lineages experienced population expansion during the last glaciation.

The high genetic divergence, long‐term isolation and ecological differentiation suggest a scenario of cryptic speciation in T. wallichiana associated with geological and climatic changes in the HHM. Our findings also challenge the notion of general population ‘contraction’ during the last glaciation in the HHM.
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References
102
[6]
The effect of Quaternary climatic changes on plant distribution and evolution

Hans Peter Comes, Joachim W Kadereit

Trends in Plant Science 10.1016/s1360-1385(98)01327-2
[15]
Detecting the number of clusters of individuals using the software structure: a simulation study

G. EVANNO, S. REGNAUT, J. Goudet

Molecular Ecology 10.1111/j.1365-294x.2005.02553.x
[16]
Arlequin suite ver 3.5: a new series of programs to perform population genetics analyses under Linux and Windows

Laurent Excoffier, HEIDI E. L. LISCHER

Molecular Ecology Resources 10.1111/j.1755-0998.2010.02847.x
[17]
Detecting the number of clusters of individuals using the software structure: a simulation study

G. EVANNO, S. REGNAUT, J. Goudet

Molecular Ecology 10.1111/j.1365-294x.2005.02553.x
[19]
Florin R "On Jurassic taxads and conifers from north‐western Europe and eastern Greenland" Acta Horti Bergiani (1958)
[20]
Fu LG (1999)
[24]
J Goudet 2001
[31]
Genetic consequences of climatic oscillations in the Quaternary

G. M. Hewitt

Philosophical Transactions of the Royal Society B:... 10.1098/rstb.2003.1388
[32]
Very high resolution interpolated climate surfaces for global land areas

ROBERT J. HIJMANS, Susan E. Cameron, Juan L. Parra et al.

International Journal of Climatology 10.1002/joc.1276
[33]
Hijmans RJ "Computer tools for spatial analysis of plant genetic resources data: 1. DIVA‐GIS" Plant Genetic Resources Newsletter (2001)
[37]
Jiang X "Paleoclimatic and environmental changes over the last 30 000 years in Heqing Basin, Yunnan Province" Journal of Lake Sciences (1998)
[41]
Clustal W and Clustal X version 2.0

M.A. Larkin, G. Blackshields, N.P. Brown et al.

Bioinformatics 10.1093/bioinformatics/btm404
[45]
Li WH (2010)
[46]
DnaSP v5: a software for comprehensive analysis of DNA polymorphism data

P. Librado, J. Rozas

Bioinformatics 10.1093/bioinformatics/btp187
[47]
Liu J "Comparative analysis of three different methods of total DNA extraction used in Taxus" Guihaia (2011)

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Details
Published
May 30, 2013
Vol/Issue
199(4)
Pages
1093-1108
License
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Funding
National Natural Science Foundation of China Award: 30700042
Cite This Article
Jie Liu, Michael Möller, Jim Provan, et al. (2013). Geological and ecological factors drive cryptic speciation of yews in a biodiversity hotspot. New Phytologist, 199(4), 1093-1108. https://doi.org/10.1111/nph.12336