2017
Multilocus phylogeny of East African gerbils (Rodentia, Gerbilliscus) illuminates the history of the Somali-Masai savanna
AGHOVÁ, Tatiana, Radim ŠUMBERA, L. PIALEK, Ondřej MIKULA, M.M. MCDONOUGH et. al.Základní údaje
Originální název
Multilocus phylogeny of East African gerbils (Rodentia, Gerbilliscus) illuminates the history of the Somali-Masai savanna
Autoři
AGHOVÁ, Tatiana (703 Slovensko, domácí), Radim ŠUMBERA (203 Česká republika), L. PIALEK (203 Česká republika), Ondřej MIKULA (203 Česká republika), M.M. MCDONOUGH (840 Spojené státy), L.A. LAVRENCHENKO (643 Rusko), Y. MEHERETU (231 Etiopie), J.S. MBAU (404 Keňa) a Josef BRYJA (203 Česká republika, garant, domácí)
Vydání
Journal of Biogeography, HOBOKEN, WILEY, 2017, 0305-0270
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.154
Kód RIV
RIV/00216224:14310/17:00097763
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000412074300012
Klíčová slova anglicky
biogeography; Gerbillinae; historical DNA; murid rodents; phylogeography; Plio-Pleistocene climate change; pyrosequencing; Rift Valley; species delimitation; tropical Africa
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 9. 4. 2018 14:53, Ing. Nicole Zrilić
Anotace
V originále
Aim The rodent genus Gerbilliscus is widespread in savannas throughout sub-Saharan Africa. The eastern clade comprises four species with distributions centred in the Somali-Masai biogeographical region of East Africa. We investigated the genetic diversity of the group with a view to illuminating the historical (Plio-Pleistocene) processes that formed contemporary biota of the understudied Somali-Masai region. Location Somali-Masai savanna, East Africa. Methods We performed multilocus genetic analyses of 240 samples from 112 localities, combining genotyping of recently collected samples (N = 145), 454-pyrosequencing of museum material (N = 34) and published sequences (N = 61). We used Bayesian and maximum likelihood approaches for phylogenetic reconstructions, and coalescent-based methods to delimit species. We also estimated divergence times and modelled recent and past distributions to reconstruct the major evolutionary influences in the Somali-Masai region during the Plio-Pleistocene. Results Genetic analyses provided evidence for six lineages, possibly corresponding to distinct species. The two main species groups (with two and four putative species, respectively) have overlapping distributions, but species within each group are distributed parapatrically. The origin of the eastern clade dates back to the Pliocene, while individual species diverged in the Pleistocene. The distribution of genetic diversity and ecological niche modelling point to the importance of the Rift Valley and the presence of unsuitable xeric habitats in the allopatric diversification of Gerbilliscus in the Somali-Masai savanna within the last 5 Myr. Conclusions This is the first detailed phylo(bio-)geographical study of animals with predominant distribution in the Somali-Masai region. It revealed currently underestimated diversity of eastern clade of Gerbilliscus and proposed a scenario of its evolution during Plio-Pleistocene. Conspicuous genetic structure of these taxa can be now used to test detailed phylogeographical hypotheses related to Plio-Pleistocene history of gerbils and, to some extent, also biota of Somali-Masai bioregion in general.