How to cross the desert if you are small and need mountains? Out-of-Ethiopia dispersal in Afromontane shrews

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F24%3A00578458" target="_blank" >RIV/68081766:_____/24:00578458 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/24:00135353

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/10.1111/jbi.14748" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/jbi.14748</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jbi.14748" target="_blank" >10.1111/jbi.14748</a>

Result language

angličtina

Original language name

How to cross the desert if you are small and need mountains? Out-of-Ethiopia dispersal in Afromontane shrews

Original language description

Aim: The Eastern Afromontane Biodiversity Hotspot (EABH) offers an ideal location to investigate the evolutionary mechanisms producing a high level of endemic biodiversity. We tested the hypothesis that the cradle of Eastern Afromontane diversity is in the largest sub-region of the EABH montane archipelago, that is the Ethiopian Highlands. Further, we expected that climate oscillations followed by elevational shifts in montane habitats facilitated the dispersal of small mammal populations across unsuitable arid lowlands. nLocation: Mountains and highlands of East Africa. nTaxon: Shrews of the genus Crocidura (Eastern Afromontane phylogenetic clade). nMethods: We collected comprehensive genetic data from 511 (mitochondrial gene for cytochrome b) and 147 (double digest Restriction-Associated DNA sequencing) samples of Crocidura shrews across the EABH. We estimated phylogenetic relationships with Bayesian and Maximum Likelihood approaches. Population genetic analyses were performed in STRUCTURE to evaluate the internal structure of species outside Ethiopia. Ancestral area and dispersal routes were analysed by the BioGeoBears package. nResults: Six major phylogenomic clades were delimited based on concatenated nuclear loci. The mitochondrial phylogeny roughly matches nuclear phylogenies, but with poorer resolution. Five of the six revealed clades are restricted to the Ethiopian Highlands, which is unambiguously the cradle of the diversity of this group of mammals (also confirmed by the biogeographic analysis). All non-Ethiopian and a single Ethiopian species fall into the sixth clade with poorly resolved internal relationships. Detailed population genetic analysis of SNP data revealed a pronounced structure with multiple gene pools in this clade, however, this structure only partly corresponds with the current taxonomy. nMain Conclusions: Eastern Afromontane Crocidura shrews originated in the Ethiopian Highlands. They radiated there, and through a single southward dispersal event across the Turkana depression, they colonised the rest of the EABH in response to diverse geomorphology and climatic changes during the Plio-Pleistocene.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10619 - Biodiversity conservation

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Journal of Biogeography

ISSN

0305-0270

e-ISSN

1365-2699

Volume of the periodical

51

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

16

Pages from-to

230-245

UT code for WoS article

001086609300001

EID of the result in the Scopus database

2-s2.0-85174256475