Cytoplasmic DNA variation does not support a recent contribution of Pinus sylvestris L. from the Caucasus to the main range

Cytoplasmic DNA variation does not support a recent contribution of Pinus sylvestris L. from the Caucasus to the main range

The history of the interaction between the boreal floras of northern Eurasia and those from the mountain areas located at intermediate latitudes remains insufficiently studied. Twenty-four population samples of 4 to 34 trees were analyzed with eight mitochondrial DNA (mtDNA) markers and four chlorop...

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Bibliographic Details
Published in:Tree genetics & genomes Vol. 16; no. 4
Main Authors: Semerikov, Nikolay V., Petrova, Irina V., Sannikov, Stanislav N., Semerikova, Svetlana A., Tashev, Alexander N., Lascoux, Martin, Semerikov, Vladimir L.
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-08-2020
Springer Nature B.V
Subjects:
Biomedical and Life Sciences
Biotechnology
Caucasus
Chloroplast DNA
Chloroplasts
Cytoplasmic DNA
Deoxyribonucleic acid
DNA
Environment models
Evergreen trees
Forestry
Genetic relationship
Haplotypes
Hybridization
Life Sciences
Mitochondrial DNA
Mountain regions
Mountains
Original Article
Peninsulas
Phylogeography
Pine
Pine trees
Pinus sylvestris
Plant Breeding/Biotechnology
Plant Genetics and Genomics
Population genetics
Population studies
Populations
Refugia
Tree Biology
Trees
Eastern Europe
Black Sea
Caucasus
Refugia
Cytoplasmic DNA
Phylogeography
Caucasus
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Summary:The history of the interaction between the boreal floras of northern Eurasia and those from the mountain areas located at intermediate latitudes remains insufficiently studied. Twenty-four population samples of 4 to 34 trees were analyzed with eight mitochondrial DNA (mtDNA) markers and four chloroplast DNA (cpDNA) microsatellite loci to study the history of Scots pine in the Black Sea region, and infer migration routes and genetic relationships with populations of the northern part of the range. These new data were combined with data previously obtained from Eastern Europe and North Asia. Scots pine past geographic range was also reconstructed using environmental niche modeling. Both mtDNA and cpDNA revealed a common origin of populations in the eastern Black Sea region (EBS), i.e., Crimea, Caucasus, and Asia Minor, and deep divergence from the main range of Scots pine, reminiscent of the isolation of enclaves in Iberian and Apennine Peninsulas. Mitochondrial DNA haplotypes (mitotypes) endemic to Western Caucasus are genetically intermediate between mitotypes from Eastern Europe and other mitotypes from the EBS region, indicating a recombinant origin likely due to migration to the Caucasus from the north and hybridization with local trees. Environmental niche modeling shows the possibility of such migration events during the last glacial maximum.
ISSN:1614-2942
1614-2950
1614-2950
DOI:10.1007/s11295-020-01458-8