Systematic relationships within the Microtus arvalis (Rodentia: Cricetidae) group in Iran, inferred from cytogenetic analyses

0484401 - ÚBO 2019 RIV DE eng J - Článek v odborném periodiku
Mahmoudi, A. - Zima, Jan - Kryštufek, B. - Darvish, J. - Aliabadian, M. - Arslan, A.
Systematic relationships within the Microtus arvalis (Rodentia: Cricetidae) group in Iran, inferred from cytogenetic analyses.
Zoology in the Middle East. Roč. 64, č. 1 (2018), s. 1-8. ISSN 0939-7140. E-ISSN 2326-2680
Institucionální podpora: RVO:68081766
Klíčová slova: chromosome C-banding * karyotype * NORs * taxonomy
Obor OECD: Zoology
Impakt faktor: 0.701, rok: 2018

The distribution of C-heterochromatin and nucleolar organizer regions (NORs) was studied in three species of voles of the Microtus arvalis group in Iran: M. mystacinus, M. kermanensis, and M. transcaspicus. The C-banding pattern and NORs distribution were similar in M. mystacinus and M. kermanensis suggesting taxonomic proximity of these two species. At the same time, the karyotypes of M. mystacinus from Iran were different in C-banding pattern from the complements of conspecific 54-chromosome voles from Europe and other regions of Asia. The most distinct difference was in size of the distal C-positive block of heterochromatin on the X chromosome. In this respect M. mystacinus from Iran and M. kermanensis resembled M. transcaspicus. Small size of the distal C-positive heterochromatic block may be ancestral whereas larger size is derived. The X chromosome of M. transcaspicus can be derived from that of M. mystacinus and M. kermanensis by a large inversion or centromeric shift.
Trvalý link: http://hdl.handle.net/11104/0279563