Multilocus phylogeny of African striped grass mice (Lemniscomys): Stripe pattern only partly reflects evolutionary relationships
Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
33160039
DOI
10.1016/j.ympev.2020.107007
PII: S1055-7903(20)30279-7
Knihovny.cz E-zdroje
- Klíčová slova
- Biogeography, Grass mouse, Phylogeny, Striped pelage colouration, Sub-Saharan Africa, Zebra mouse,
- MeSH
- Bayesova věta MeSH
- časové faktory MeSH
- druhová specificita MeSH
- fylogeneze * MeSH
- genetická variace MeSH
- genetické lokusy * MeSH
- haplotypy genetika MeSH
- kalibrace MeSH
- mitochondriální DNA genetika MeSH
- mitochondrie genetika MeSH
- podnebí MeSH
- Sigmodontinae anatomie a histologie klasifikace MeSH
- zeměpis MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- subsaharská Afrika MeSH
- Názvy látek
- mitochondriální DNA MeSH
Murine rodents are one of the most evolutionary successful groups of extant mammals. They are also important for human as vectors and reservoirs of zoonoses and agricultural pests. Unfortunately, their fast and relatively recent diversification impedes our understanding of phylogenetic relationships and species limits of many murine taxa, including those with very conspicuous phenotype that has been frequently used for taxonomic purposes. One of such groups are the striped grass mice (genus Lemniscomys), distributed across sub-Saharan Africa in 11 currently recognized species. These are traditionally classified into three morphological groups according to different pelage colouration on the back: (a) L. barbarus group (three species) with several continuous pale longitudinal stripes; (b) L. striatus group (four species) with pale stripes diffused into short lines or dots; and (c) L. griselda group (four species) with a single mid-dorsal black stripe. Here we reconstructed the most comprehensive molecular phylogeny of the genus Lemniscomys to date, using the largest currently available multi-locus genetic dataset of all but two species. The results show four main lineages (=species complexes) with the distribution corresponding to the major biogeographical regions of Africa. Surprisingly, the four phylogenetic lineages are only in partial agreement with the morphological classification, suggesting that the single-stripe and/or multi-striped phenotypes evolved independently in multiple lineages. Divergence dating showed the split of Lemniscomys and Arvicanthis genera at the beginning of Pleistocene; most of subsequent speciation processes within Lemniscomys were affected by Pleistocene climate oscillations, with predominantly allopatric diversification in fragmented savanna biome. We propose taxonomic suggestions and directions for future research of this striking group of African rodents.
Institute of Vertebrate Biology of the Czech Academy of Sciences Květná 8 603 65 Brno Czech Republic
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