Vladimir N Babenko1,2, Roman O Babenko3,4, Yuriy N Orlov3,4,5. 1. Institute of Cytology and Genetics, Lavrentyeva 10, Novosibirsk, 630090, Russia. bob@bionet.nsc.ru. 2. Novosibirsk State University, Pirogova Str 2, Novosibirsk, 630090, Russia. bob@bionet.nsc.ru. 3. Institute of Cytology and Genetics, Lavrentyeva 10, Novosibirsk, 630090, Russia. 4. Novosibirsk State University, Pirogova Str 2, Novosibirsk, 630090, Russia. 5. I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Trubetskaya 8-2, Moscow, 119991, Russia.