2024
How to cross the desert if you are small and need mountains? Out-of-Ethiopia dispersal in Afromontane shrews
DIANAT, Malahatosadat, Adam KONEČNÝ, Leonid A. LAVRENCHENKO, Julian C. Kerbis PETERHANS, Terrence C. DEMOS et. al.Základní údaje
Originální název
How to cross the desert if you are small and need mountains? Out-of-Ethiopia dispersal in Afromontane shrews
Autoři
DIANAT, Malahatosadat (364 Írán, garant, domácí), Adam KONEČNÝ (203 Česká republika, domácí), Leonid A. LAVRENCHENKO, Julian C. Kerbis PETERHANS, Terrence C. DEMOS, Violaine NICOLAS, David ORTIZ MARTÍNEZ (724 Španělsko, domácí) a Josef BRYJA (203 Česká republika, domácí)
Vydání
Journal of Biogeography, Hoboken, Wiley, 2024, 0305-0270
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.900 v roce 2022
Organizační jednotka
Přírodovědecká fakulta
UT WoS
001086609300001
Klíčová slova anglicky
biogeography; Crocidura; distribution; diversity; East Africa; phylogenomics
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 30. 1. 2024 10:26, Mgr. Marie Šípková, DiS.
Anotace
V originále
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. Location:Mountains and highlands of East Africa. Taxon:Shrews of the genus Crocidura (Eastern Afromontane phylogenetic clade). Methods: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. Results: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. Main 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.
Návaznosti
LM2018140, projekt VaV |
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