Evolution of the Grey-bellied pygmy mouse group: Highly structured molecular diversity with predictable geographic ranges but morphological crypsis

0503823 - ÚŽFG 2020 RIV US eng J - Článek v odborném periodiku
Krásová, J. - Mikula, Ondřej - Mazoch, V. - Bryja, J. - Říčan, O. - Šumbera, R.
Evolution of the Grey-bellied pygmy mouse group: Highly structured molecular diversity with predictable geographic ranges but morphological crypsis.
Molecular Phylogenetics and Evolution. Roč. 130, JAN 19 (2019), s. 143-155. ISSN 1055-7903. E-ISSN 1095-9513
Institucionální podpora: RVO:67985904
Klíčová slova: African pygmy mice * molecular phylogeny * Eastern Africa * Plio-Pleistocene climatic fluctuations * forest-savana mosaic
Obor OECD: Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology
Impakt faktor: 3.496, rok: 2019
Způsob publikování: Omezený přístup
https://asep.lib.cas.cz/arl-cav/cs/csg/?repo=crepo1&key=92140907577

The grey-bellied pygmy mouse (Mus triton) from the endemic African subgenus Nannomys is a widespread rodent species inhabiting the highlands of eastern and central Africa. Although it has long been considered as a single species, recent data has suggested the existence of a species complex. In order to evaluate the geographical structure and current taxonomy of M. triton, we analysed one mitochondrial and six nuclear genes from individuals covering most of its distribution range. Our analysis revealed the existence of at least five distinct genetic lineages with only marginal overlaps among their distributional ranges. Morphological comparisons, however, showed large overlaps in external body measurements and only a weak differentiation in skull form. Therefore, we suggest maintaining M. triton as a single taxon with pronounced intraspecific genetic structure. Divergence dating analysis placed the most recent common ancestor of the extant lineages of M. triton to the early Pleistocene (about 2.0 Ma). The phylogeographic structure of the species was likely shaped by Pleistocene climatic oscillations and the highly diverse topography of eastern Africa.
Trvalý link: http://hdl.handle.net/11104/0295607