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Genetic polymorphism of plus-tree clones and their seed progeny in the scotch pine clone plantation

Korshikov I.I., Demkovich A.Ye.

 


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Genetic variation at 12 allozyme loci (10 of them being polymorphic ones) has been studied in the archive-clone plantation of 23 Pinus sylvestris plus-trees and their seed progeny in the south-east of Ukraine. More than a half of clones had 4–8 heterozygous loci, whereas their seed progeny was marked by a lower variation than maternal trees. Seed progeny was obtained at a high outcrossing rate (tm = 95 %). The clone progeny was characterized by a high percentage of abnormal allele segregation in megagametophytes. There was also a high frequency of significant deviation in distribution of seed embryo genotypes from the theoretically expected one according to the Hardy-Weinberg law.

Tsitologiya i Genetika 2010, vol. 44, no. 1, pp. 36-45

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Korshikov I.I., Demkovich A.Ye. Genetic polymorphism of plus-tree clones and their seed progeny in the scotch pine clone plantation, Tsitol Genet., 2010, vol. 44, no. 1, pp. 36-45.




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