High genetic similarity between Polish and North European Scots pine (Pinus sylvestris L.) populations at nuclear gene loci

Wachowiak, Witold; Wojkiewicz, Blazej; Cavers, Stephen; Lewandowski, Andrzej. 2014 High genetic similarity between Polish and North European Scots pine (Pinus sylvestris L.) populations at nuclear gene loci. Tree Genetics & Genomes, 10 (4). 1015-1025.

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Nucleotide polymorphisms in a set of 32 nuclear genes were studied in 19 mountain, peatbog and lowland populations of Scots pine representing known phenotypic races and populations of presumably relict character for the species in Poland. At 29 genes, the pattern of genetic variation was compared to 11 reference populations from Northern, Western and Southern Europe. Similar levels of nucleotide polymorphism and excess of low-frequency mutations were observed in Polish populations (π tot = 0.0055, D = −0.308) and as compared to the reference samples (π tot = 0.0054, D = −0.170). Bayesian assignment and conventional frequency-based statistics indicate that Polish populations share the same genetic background at the analysed nuclear gene markers. However, the populations showed a much closer genetic relationship with North European samples than other regional groups of populations. Across the very uniform genetic background of the populations, we identified several genes with outlier patterns of haplotype, polymorphism frequency variation and departures from compound neutrality tests. Our data indicate that the Central and North European parts of the Scots pine distribution seem particularly suitable for association genetic studies to link phenotypic and genetic variation at a large geographical scale.

Item Type: Publication - Article
Digital Object Identifier (DOI):
CEH Sections/Science Areas: Watt
ISSN: 1614-2942
Additional Keywords: nucleotide polymorphism, population structure, natural selection, recolonization
NORA Subject Terms: Ecology and Environment
Biology and Microbiology
Date made live: 13 May 2014 15:18 +0 (UTC)

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