Address for correspondence

Dr. Koval Segey.F.,
Institute of Cytology & Genetics
Siberian Branch of the Russian Academy of Sciences,
Lavrent’eva ave. 10,
Novosibirsk, 630090, Russia
E-mail:kovalvs@bionet.nsc.ru,
tel.:(3832)33-34-62, Fax:(3832)33-12-78