Journal of Siberian Federal University. Biology / Population Mobility of Animal and Plant B-Chromosomes in Regions Subject to Technogenic Impact

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Issue
Journal of Siberian Federal University. Biology. 2010 3 (2)
Authors
Borisov, Yuri M.; Muratova, Elena N.
Contact information
Borisov, Yuri M. : A.N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences , 33 Leninsky Prospect, Moscow, 119071 Russia , e-mail: ; Muratova, Elena N. : V.N. Sukachev Institute of Forest of Siberian Branch of the Russian Academy of Sciences Institute of Economy, Management and Use of Natural Resources of the Siberian Federal University , Akademgorodok, Krasnoyarsk, 660036 Russia 79 Svobodny, Krasnoyarsk, 660041 Russia
Keywords
B-chromosomes; karyotype; Korean field mouse Apodemus peninsulae; Siberian spruce Picea obovata; evolution; technogenic impact
Abstract

The paper presents the studies on changes in number and morphology of B-chromosomes of field Apodemus peninsulae and spruce Picea obovata in Siberian populations subjected technogenic impact. For the first time the unique population of mouse Apodemus peninsulae which had numerous micro- B-chromosomes (12-30), was found in Krasnoyark region. The mouse population inhabits a site at the left bank of the Yenisey river in 85 km downstream of the town of Zheleznogorsk where the Mining and Chemical Combine with chemonuclear complex is situated. The population of A. peninsulae from Gorny Altai showed threefold increase in number of B-chromosomes, from 2,3 to 7,1, during 28-year (1980-2008) studied period. The region of Gornyi Altai is the area where details of rockets launched from the Baikonur cosmodrome fall down. It was shown that the frequency of B-chromosomes of the Siberian spruce Picea obovata is higher in urban plantations (Krasnoyarsk city) than in its native populations. The effect of technogenic factors on acceleration of evolutionary processes is being discussed.

Pages
146-158
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/2139

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