Allozyme investigations on the genetic differentiation between closely related pines —Pinus sylvestris, P. mugo, P. uncinata, andP. uliginosa (Pinaceae)

In eight natural European populations of four closely related taxa of pines (Pinus sylvestris, P. mugo, P. uncinata, andP. uliginosa) starch-gel electrophoreses revealed altogether 58 alleles at 15 loci from nine enzyme systems. With Nei's genetic distance (D) the largest mean genetic distance...

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Bibliographic Details
Published in:Plant systematics and evolution 2000-03, Vol.221 (1-2), p.15-24
Main Authors: Lewandowski, A., Boratyński, A., Mejnartowicz, L.
Format: Article
Language:English
Subjects:
Genetic distance
Hybridization
Pine trees
Pinus mugo
Pinus sylvestris
Starch
Taxa
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Summary:In eight natural European populations of four closely related taxa of pines (Pinus sylvestris, P. mugo, P. uncinata, andP. uliginosa) starch-gel electrophoreses revealed altogether 58 alleles at 15 loci from nine enzyme systems. With Nei's genetic distance (D) the largest mean genetic distance (D = 0.171) was found betweenP. sylvestris andP. mugo, a distance corresponding to that between other closely related pine species. Mean genetic distances between the other taxa were less than half that value and characteristic for subspecies or varieties rather than for species. On the basis of our results we suggest that both,P. uliginosa andP. uncinata, could be the result of the ancient hybridization betweenP. sylvestris andP. mugo.
ISSN:0378-2697
1615-6110
2199-6881
DOI:10.1007/BF01086377