Specific Karyological Features of Siberian Stone Pine (Pinus sibirica Du Tour) in Western Siberian Bogs

The results of a karyological study on Siberian stone pines growing in the bog demonstrated differences from the populations of this species studied earlier with respect to sizes of chromosomes and location of secondary constrictions. The number of nucleolar organizer regions in the chromosomes of S...

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Bibliographic Details
Published in:Russian journal of ecology 2002-09, Vol.33 (5), p.303-308
Main Authors: Sedelnikova, T S, Muratova, E N
Format: Article
Language:English
Subjects:
Bogs
Chromosome aberrations
Chromosomes
Evergreen trees
Karyotypes
Pine trees
Stone
Online Access:Get full text
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Summary:The results of a karyological study on Siberian stone pines growing in the bog demonstrated differences from the populations of this species studied earlier with respect to sizes of chromosomes and location of secondary constrictions. The number of nucleolar organizer regions in the chromosomes of Siberian stone pine trees growing in the bog was larger than in other populations. A wide spectrum of chromosome aberrations was revealed, which had not been observed in this species before. These were genome and chromosome aberrations of various types, as well as structural aberrations accompanied by changes in the number of chromosomes. It is assumed that the aberrations in the karyotype of Siberian stone pine resulted from stressful conditions.[PUBLICATION ABSTRACT]
ISSN:1067-4136
1608-3334
DOI:10.1023/A:1020232524851