Detailed Information on Publication Record
2015
Multilocus phylogeography of a widespread savanna-woodland-adapted rodent reveals the influence of Pleistocene geomorphology and climate change inAfrica's Zambezi region
MCDONOUGH, M.M., R. SUMBERA, V. MAZOCH, A.W. FERGUSON, C.D. PHILLIPS et. al.Basic information
Original name
Multilocus phylogeography of a widespread savanna-woodland-adapted rodent reveals the influence of Pleistocene geomorphology and climate change inAfrica's Zambezi region
Authors
MCDONOUGH, M.M. (840 United States of America), R. SUMBERA (203 Czech Republic), V. MAZOCH (203 Czech Republic), A.W. FERGUSON (840 United States of America), C.D. PHILLIPS (840 United States of America) and Josef BRYJA (203 Czech Republic, guarantor, belonging to the institution)
Edition
Molecular Ecology, Blackwell Publishing Ltd. 2015, 0962-1083
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 5.947
RIV identification code
RIV/00216224:14310/15:00093616
Organization unit
Faculty of Science
UT WoS
000363273100013
Keywords in English
climate variability; Gerbilliscus; historical biogeography; megadroughts; mito-nuclear discordance; palaeodistributional modelling; southern Africa
Tags
International impact, Reviewed
Změněno: 5/3/2018 14:34, Mgr. Lucie Jarošová, DiS.
Abstract
V originále
Understanding historical influences of climate and physiographic barriers in shaping patterns of biodiversity remains limited for many regions of the world. For mammals of continental Africa, phylogeographic studies, particularly for West African lineages, implicate both geographic barriers and climate oscillations in shaping small mammal diversity. In contrast, studies for southern African species have revealed conflicting phylogenetic patterns for how mammalian lineages respond to both climate change and geologic events such as river formation, especially during the Pleistocene. However, these studies were often biased by limited geographic sampling or exclusively focused on large-bodied taxa. We exploited the broad southern African distribution of a savanna-woodland-adapted African rodent, Gerbilliscus leucogaster (bushveld gerbil) and generated mitochondrial, autosomal and sex chromosome data to quantify regional signatures of climatic and vicariant biogeographic phenomena. Results indicate the most recent common ancestor for all G.leucogaster lineages occurred during the early Pleistocene. We documented six divergent mitochondrial lineages that diverged similar to 0.270-0.100mya, each of which was geographically isolated during periods characterized by alterations to the course of the Zambezi River and its tributaries as well as regional megadroughts'. Results demonstrate the presence of a widespread lineage exhibiting demographic expansion similar to 0.065-0.035mya, a time that coincides with savanna-woodland expansion across southern Africa. A multilocus autosomal perspective revealed the influence of the Kafue River as a current barrier to gene flow and regions of secondary contact among divergent mitochondrial lineages. Our results demonstrate the importance of both climatic fluctuations and physiographic vicariance in shaping the distribution of southern African biodiversity.