Niche shifts and range expansions along cordilleras drove diversification in a high-elevation endemic plant genus in the tropical Andes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F16%3A00464280" target="_blank" >RIV/67985939:_____/16:00464280 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/16:10330954

Result on the web

<a href="http://dx.doi.org/10.1111/mec.13788" target="_blank" >http://dx.doi.org/10.1111/mec.13788</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/mec.13788" target="_blank" >10.1111/mec.13788</a>

Result language

angličtina

Original language name

Niche shifts and range expansions along cordilleras drove diversification in a high-elevation endemic plant genus in the tropical Andes

Original language description

The tropical Andes represent one of the world's biodiversity hot spots, but the evolutionary drivers generating their striking species diversity still remain poorly understood. In the treeless high-elevation Andean environments, Pleistocene glacial oscillations and niche differentiation are frequently hypothesized diversification mechanisms; however, sufficiently densely sampled population genetic data supporting this are still lacking. Here, we reconstruct the evolutionary history of Loricaria (Asteraceae), a plant genus endemic to the Andean treeless alpine zone, based on comprehensive population-level sampling of 289 individuals from 67 populations across the entire distribution ranges of its northern Andean species. Partly incongruent AFLP and plastid DNA markers reveal that the distinct genetic structure was shaped by a complex interplay of biogeography (spread along and across the cordilleras), history (Pleistocene glacial oscillations) and local ecological conditions. While plastid variation documents an early split or colonization of the northern Andes by at least two lineages, one of which further diversified, a major split in the AFLP data correlate with altitudinal ecological differentiation. This suggests that niche shifts may be important drivers of Andean diversification not only in forest-alpine transitions, but also within the treeless alpine zone itself. The patterns of genetic differentiation at the intraspecific level reject the hypothesized separation in spatially isolated cordilleras and instead suggest extensive gene flow among populations from distinct mountain chains. Our study highlights that leveraging highly variable markers against extensive population-level sampling is a promising approach to address mechanisms of rapid species diversifications.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EF - Botany

OECD FORD branch

—

Project

<a href="/en/project/GA206%2F07%2F0273" target="_blank" >GA206/07/0273: Phylogeny of the genus Lasiocephalus (Asteraceae) - colonisation history of equatorial páramos</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Molecular Ecology

ISSN

0962-1083

e-ISSN

—

Volume of the periodical

25

Issue of the periodical within the volume

18

Country of publishing house

GB - UNITED KINGDOM

Number of pages

18

Pages from-to

4593-4610

UT code for WoS article

000383344400014

EID of the result in the Scopus database

2-s2.0-84987784630