[Chromosome mutations in marshland and dry valley populations of Abies sibirica Ledeb].
Results of chromosome mutation investigation in Abies sibirica populations growing in fen and dry valley in Western Siberia are presented. The frequency of chromosome aberrations and mitotic irregularities is higher in dry valley population of the fir, than in its fen population. However, the spectrum of abnormalities registered in metaphase and ana-telophase cells of the fir from fen is broader, compared to that from dry valley. These features may be due to the fir genome reorganization in different environmental conditions, and indicate the plant reaction to stress factors.
Sedelnikova
T S
TS
V. N. Sukachev Institute of Forest, Siberian Branch of RAS, Krasnoyarsk.
Pimenov
A V
AV
D028202:Abies / Q000235:genetics*; D032461:Chromosomes, Plant; D004463:Ecology; D009154:Mutation; D012800:Siberia