The phylogeny of the African wood mice (Muridae, Hylomyscus) based on complete mitochondrial genomes and five nuclear genes reveals their evolutionary history and undescribed diversity
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
31816395
DOI
10.1016/j.ympev.2019.106703
PII: S1055-7903(19)30536-6
Knihovny.cz E-resources
- Keywords
- Biogeography, Mammals, Rodents, Speciation, Taxonomy, Tropical Africa,
- MeSH
- Biological Evolution * MeSH
- Cell Nucleus genetics MeSH
- Ecosystem MeSH
- Phylogeny MeSH
- Genetic Variation * MeSH
- Genome, Mitochondrial * MeSH
- Forests MeSH
- DNA, Mitochondrial genetics MeSH
- Murinae classification genetics MeSH
- Mice MeSH
- Sequence Analysis, DNA MeSH
- Tropical Climate MeSH
- Animals MeSH
- Check Tag
- Mice MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Geographicals
- Africa MeSH
- Names of Substances
- DNA, Mitochondrial MeSH
Wood mice of the genus Hylomyscus, are small-sized rodents widely distributed in lowland and montane rainforests in tropical Africa, where they can be locally abundant. Recent morphological and molecular studies have increased the number of recognized species from 8 to 18 during the last 15 years. We used complete mitochondrial genomes and five nuclear genes to infer the number of candidate species within this genus and depict its evolutionary history. In terms of gene sampling and geographical and taxonomic coverage, this is the most comprehensive review of the genus Hylomyscus to date. The six species groups (aeta, alleni, anselli, baeri, denniae and parvus) defined on morphological grounds are monophyletic. Species delimitation analyses highlight undescribed diversity within this genus: perhaps up to 10 taxa need description or elevation from synonymy, pending review of type specimens. Our divergence dating and biogeographical analyses show that diversification of the genus occurred after the end of the Miocene and is closely linked to the history of the African forest. The formation of the Rift Valley combined with the declining global temperatures during the Late Miocene caused the fragmentation of the forests and explains the first split between the denniae group and remaining lineages. Subsequently, periods of increased climatic instability during Plio-Pleistocene probably resulted in elevated diversification in both lowland and montane forest taxa.
Animal Ecology and Resource Management Laboratory University of Kisangani B P 2012 Kisangani Congo
College of Arts and Sciences Roosevelt University 430 S Michigan Chicago IL 60605 USA
Natural History Museum Obafemi Awolowo University HO 220005 Ile Ife Nigeria
Université de Rennes 1 CNRS UMR 6553 Ecobio Station Biologique 35380 Paimpont France
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