LAVRENCHENKO, L.A., R.S. NADJAFOVA, A. BEKELE, T.A. MIRONOVA and Josef BRYJA. Phylogenetic position of a monotypic Ethiopian endemic rodent genus Megadendromus (Rodentia, Nesomyidae). Mammalia. Berlin: WALTER DE GRUYTER GMBH, vol. 81, No 1, p. 71-82. ISSN 0025-1461. doi:10.1515/mammalia-2015-0148. 2017.
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Basic information
Original name Phylogenetic position of a monotypic Ethiopian endemic rodent genus Megadendromus (Rodentia, Nesomyidae)
Authors LAVRENCHENKO, L.A. (643 Russian Federation), R.S. NADJAFOVA (643 Russian Federation), A. BEKELE (231 Ethiopia), T.A. MIRONOVA (643 Russian Federation) and Josef BRYJA (203 Czech Republic, guarantor, belonging to the institution).
Edition Mammalia, Berlin, WALTER DE GRUYTER GMBH, 2017, 0025-1461.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10600 1.6 Biological sciences
Country of publisher Germany
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 0.714
RIV identification code RIV/00216224:14310/17:00096236
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1515/mammalia-2015-0148
UT WoS 000391846100008
Keywords in English Dendromurinae; Ethiopia; karyotype; Megadendromus; phylogeny
Tags NZ, rivok
Changed by Changed by: Ing. Nicole Zrilić, učo 240776. Changed: 10/4/2018 16:09.
Abstract
The taxonomic and phylogenetic position of the Nikolaus's African climbing mouse (Megadendromus nikolausi), formerly known only from four specimens, remained for a long time ambiguous. Here, we report, for the first time, the phylogenetic analysis of this species using mitochondrial (cytochrome b) and nuclear (interphotoreceptor binding protein) gene sequences obtained from a new specimen recently caught in the Bale Mountains in south-eastern Ethiopia. Our analyses strongly suggest that the Nikolaus's climbing mouse does not belong to a distinct monotypic genus, but to the genus Dendromus. The first karyotype description of this enigmatic Ethiopian endemic is presented. The diploid set comprises 18 pairs of bi-armed chromosomes, 2N = 36, one of the lowest diploid numbers reported for the genus Dendromus (2N = 30-52). Moreover, the phylogenetic analysis reveals that another very distinctive Ethiopian endemic, Dendromus lovati, sometimes placed in a subgenus Chortomys, occupies an internal position within Dendromus s.s. The results suggest that the Ethiopian Plateau is an important center of high diversity and adaptive radiation for the genus Dendromus. The conservation status of M. nikolausi is assessed.
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