KARYOLOGICAL STUDIES ON PICEA AJANENSIS (LINDL. ET GORD.) FISCH. ET CARR. EXAMINED FROM
DIFFERENT PROVENANCES
E. N. Muratova,1 O. S. Vladimirova,1 T. V. Karpjuk 2
1 The V. N. Sukachev Institute of Forest, Siberian Branch of the RAS, Krasnoyarsk, Russia, and
2 Department of Ecological Genetics and Biotechnology, Krasnoyarsk State Agricultural University; Russia;
1 e-mail: Institute@forest.akadem.ru
Results of karyological study of Picea ajanensis (Lindl. et Gord.) Fisch. et Carr examined from 13 provenances
are presented. In addition to the cytotypes with typical chromosome number (2n = 24), P. ajanensis displays cytotypes with
one or two B-chromosomes (2n = 24+1- 2B). Among A-chromosomes, there are 8 pairs of long metacentrics and 4 pairs of shorter
meta- or submetacentrics. Among B-chromosomes there are two types of chromosomes: metacentric (B1) and submetacentric
(B2) ones. There are many nucleolar chromosomes. Several chromosomes have secondary constrictions. Patterns of
B-chromosome distribution within P. ajanensis are have been discussed.
Back
Contents
Main
