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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Miškotyra / Forestry (A004)
Author(s): Danusevičius, Darius;Kerpauskaitė, Vilma;Kavaliauskas, Darius;Fussi, Barbara;Konnert, Monika;Baliuckas, Virgilijus
Title: The effect of tending and commercial thinning on the genetic diversity of Scots pine stands
Is part of: European journal of forest research. Heidelberg : Springer, 2016, Vol. 135, iss. 6
Extent: p. 1159-1174
Date: 2016
Keywords: Forest management;Heterozygosity;Inbreeding;Pinus sylvestris;Rare alleles;Microsatellites
Abstract: The objective of this study was to estimate the effect of pre-commercial tending and commercial thinning on the genetic diversity parameters, especially rare allele loss and diameter–heterozygosity associations, in Scots pine stands by retrospectively modelling the removal of inferior/superior trees. Modelling was based on empirical data of DNA polymorphism in (a) a 60-year-old natural stand and (b) a 20-year-old young stand planted with seeds collected in a seed orchard. Within each of these stands, approximately 400 trees were systematically sampled within 1-ha plots (800 trees in total) and genotyped at 5 neutral and 7 EST-derived nuclear microsatellite markers. There was no significant association between heterozygosity, common allele number and tree diameter in either stand. Even at a high intensity, both simulated tending and commercial thinning had minor effects on the heterozygosity and allelic diversity but caused a significant loss of rare alleles. However, there was a nonlinear relationship between the loss of rare alleles and the thinning intensity in the young stand, such that below 30 % thinning intensity, the rare alleles were lost at a markedly lower rate. In conclusion, the association between commercial value and genetic diversity is weak in Scots pine. Thinning causes loss of rare alleles; however, for specific cases, it could be possible to identify the margins for a slow rate of rare allele loss
Affiliation(s): Lietuvos agrarinių ir miškų mokslų centras Miškų institutas
Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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