Insularization and polymorphism in marginal island populations of Pinus sylvestris L

Comparative allozyme analysis of 26 marginal island populations of Pinus sylvestris L. and 20 populations from the center of the species range has confirmed, at the species level, the Wright-Dubinin “island model” of automatic genetic processes and Mayr’s hypothesis about homozygotization of small i...

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Published inRussian journal of ecology Vol. 42; no. 3; pp. 186 - 191
Main Authors Sannikov, S. N., Petrova, I. V., Sannikova, N. S., Egorov, E. V., Filippova, T. V.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.05.2011
Springer Nature B.V
Subjects
Biomedical and Life Sciences
Ecology
Environment
Islands
Life Sciences
Macroecology
Pine trees
Pinus sylvestris
Polymorphism
Population genetics
homozygotization
range insularization
genetic polymorphism
marginal island population
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Summary:Comparative allozyme analysis of 26 marginal island populations of Pinus sylvestris L. and 20 populations from the center of the species range has confirmed, at the species level, the Wright-Dubinin “island model” of automatic genetic processes and Mayr’s hypothesis about homozygotization of small isolated populations at range boundaries. It has been shown that the polymorphism of isolated populations sharply decreases when their area is reduced below 15–20 km 2 and increases to the level observed in the center of the range when the population area exceeds 50–100 km 2 . A chorogenetic classification of marginal P. sylvestris populations is proposed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1067-4136
1608-3334
DOI:10.1134/S106741361103012X