C-banding and Ag-NOR distribution patterns in Euphrates jerboa, Allactaga euphratica (Mammalia: Rodentia), from Turkey

0383674 - ÚBO 2013 RIV FR eng J - Článek v odborném periodiku
Arslan, A. - Yorulmaz, T. - Toyran, K. - Albayrak, I. - Zima, Jan
C-banding and Ag-NOR distribution patterns in Euphrates jerboa, Allactaga euphratica (Mammalia: Rodentia), from Turkey.
Mammalia. Roč. 76, č. 4 (2012), s. 435-439. ISSN 0025-1461. E-ISSN 1864-1547
Institucionální podpora: RVO:68081766
Klíčová slova: AgNOR staining * C-banding * cytogenetics * jerboas
Kód oboru RIV: EG - Zoologie
Impakt faktor: 0.809, rok: 2012

A chromosomal study of Allactaga euphratica from the Ş anl ı urfa Province in Southeast Anatolia, Turkey, was performed. The diploid number of 48 chromosomes was found in all four specimens examined. The C-bandpositive regions were distributed in centromeric areas of all the autosomal pairs and the X chromosome. Extensive C-positive heterochromatin intercalary blocks were observed in the largest pair of autosomes. The small Y chromosome was stained uniformly and C-negatively. The active nucleolus organizer regions (NORs) were localized in two pairs of small bi-armed autosomes. The C-heterochromatin distribution and localization of the secondary constrictions bearing NORs apparently differ between karyotypes of the related jerboa species A. euphratica and Allactaga williamsi . This cytogenetic difference may be implied as a suitable marker in further studies of the relationships in contact zones and possible hybridization between these two taxa.
Trvalý link: http://hdl.handle.net/11104/0213541