Allozyme variation in rattus rattus (rodentia: muridae) in turkey, with particular emphasis on the taxonomy

The Turkish black rat “Rattus rattus” shows variation in coat colour corresponding to the occurrence of three subspecies with intermediate colour stages: Rattus rattus rattus, Rattus r. alexandrinus and Rattus r. frugivorus. Turkish black rat populations were divided geographically into six sub-popu...

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Bibliographic Details
Main Authors: Yiğit N., Çolak E., Kandemir I., Çolak R., Bulut Ş., Çam P., Saygılı F.
Other Authors: Zonguldak Bülent Ecevit Üniversitesi
Format: Article in Journal/Newspaper
Language:English
Published: 2008
Subjects:
Allozyme
Middle East
Morphology
Rattus rattus
Turkey
Thrace
Online Access:https://hdl.handle.net/20.500.12628/4163
https://doi.org/10.1080/09397140.2008.10638302
Description
Summary:The Turkish black rat “Rattus rattus” shows variation in coat colour corresponding to the occurrence of three subspecies with intermediate colour stages: Rattus rattus rattus, Rattus r. alexandrinus and Rattus r. frugivorus. Turkish black rat populations were divided geographically into six sub-populations: Rr1= Northwest Anatolia, Rr2= Central Anatolia, Rr3= Eastern Mediterranean, Rr4= Western Mediterranean, Rr5= Turkish Thrace, and Rr6= Black Sea region. Genetic variation was assessed using twenty two isoenzyme systems. Seven of twenty-two loci (Pgm-1, Hk, Me-M, G3pdh, Gpdh-1, Gpi, Fum-1) were found to be polymorphic. The mean value of FST is found to be 0.073, indicating 7.3 % genetic variation among groups and suggesting the existence of a moderate differentiation between sub-populations of the Turkish black rat. Overall mean heterozygosity (Ho= direct count) for sub-populations was Ho= 0.020, ranging from 0.008 to 0.031. Nei’s measure of genetic distance showed that Rr2 and Rr6 were the most identical and sub-populations Rr1 and Rr5 had diverged the most. © 2008 Taylor & Francis Group, LLC.

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