title: [Karyological features of the Siberan spruce Obovata ledeb. from various locations].
abstract: Results of karyological study of the Siberian spruce from different provenances are presented. A comparative idiogramm for the Siberian spruce from Krasnoyarsk Territory and the Khakass Autonomous Region was constructed. In addition to the typical chromosome number (2n = 24), the Siberian spruce has one or two B-chromosomes (2n = 24 + 1B; 2n = 24 + 2B). Hereditary transmission of B-chromosomes and their behaviour in mitosis have been studied. It is supposed that B-chromosomes of the Siberian spruce have a nucleolar-organizing ability.
authors.affiliation: V. N. Sukachev Institute of Forest, Siberian Branch RAS, Krasnoyarsk. Institute@forest.akadem.ru
authors.forename: O S
authors.initials: OS
authors.lastname: Vladimirova
mesh_terms: D032461:Chromosomes, Plant; D007621:Karyotyping; D028222:Picea / Q000235:genetics*; D012800:Siberia; D013045:Species Specificity