The occurrence of dot-like micro B chromosomes in Korean field mice Apodemus peninsulae from the shore of the Teletskoye Lake (Altai Mountains)

Abstract

Citation: Borisov YM, Abramov SA, Borisova MY, Zhigarev IA (2020) The occurrence of dot-like micro B chromosomes in Korean field mice Apodemus peninsulae from the shore of the Teletskoye Lake (Altai Mountains). Comparative AbstractThe data on the changes in the cytogenetic structure of the geographic population of Korean field mouse Apodemus (Alsomys) peninsulae Thomas, 1907 at the southern shore of the Teletskoye Lake (Altai Republic) are presented. In 1980 no dot-like microchromosomes were found in 34 mice captured on the southern and northern coasts of the Teletskoye Lake. In 2011, a 1.6-fold (from 2.7 to 4.3) increase in the mean number of B chromosomes compared to the rate estimated there earlier in 1980 was discovered. In 11 of the 15 mice (73%) captured in 2011, the karyotypes contained 1-2 dot-like micro B chromosomes and 1-5 macro B chromosomes. The pollution of the territory by the remains of the rocket fuel components may be an appropriate explanation for the cause of the karyological changes observed in A. peninsulae in this region.

Karyological Study of Acanthocephalus lucii (Echinorhynchida): The Occurrence of B Chromosomes in Populations from PCB-Polluted Waters

“…Supernumerary B chromosomes have been observed in several cichlid species from areas affected by pollution or construction of dams [70][71][72], as well as in South American catfish from waters downstream of sewage treatment plants with signs of domestic and industrial pollution [73]. An interesting case is the increase in B chromosomes in the population of the Korean field mouse Apodemus peninsulae from the shores of Lake Teletskoye, which is known to be polluted by remnants of rocket fuel components [74].…”