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Information × Registration Number 0303U007240, 0102U004909 , R & D reports Title Research on genetic diversity and genetic tolerance factors of population systems of the Ukraine's principal forest species aimed at their conservation in ecologically adverse regions and their improvement through selection popup.stage_title Встановлення внутрішньо- і міжпопуляційної компоненти спадкової мінливості корінних видів хвойних України в залежності від особливостей еколого-географічних умов Head Korshikov Ivan Ivanovich, Доктор біологічних наук Registration Date 16-05-2003 Organization The Donetsk Botanical gardens of the National Ukrainian Academy of Sciences popup.description2 Population-and-genetic variation in Pinus sylvestris L. within its range in Ukraine have been analyzed. 72,3 % of its genes were found to be in a polymorphic state, with 3,81 alleles per one allozymous locus, and the observed heterozygosity was 22,9 %. Relic P. sylvestris populations from the Ukrainian Carpathians are characterized by a lower genetic diversity, compared to the populations from another parts of its area. The lowest level of heterozygosity is characteristic of the P.sylvestris marginal population from the southern part of its range in Ukraine. Genetic differences of the cites of the different altitude on the Crimea Mountains macroslopes within the limits of P. pallasiana D.Don continuum have been determined, and that of P.mugo Turra in the Ukrainian Carpathians. The primary analysis of phylogenetic links of the seven native for Ukraine Pinus L.species has been performed. Nei's genetic distances (Dn) ranged from 0.017 to 0.100 for the subsection Sylvestris with the exception for P.pityusa Stev. For the latter species Dn varied within the limits of 0.397 to 0.532. The maximum differences of Dn (0.060 to 0.475) were detected between P. cembra, belonging to Cembrae subsection, and the species of subsection Sylvestris. The lower genetic diversity was exhibited by P.sylvestris populations, degrading due to the damaging effect of the chemical enterprises emissions, compared to the undamaged populations. No pronounced correlation between the heterozygosity of the mother plants and injures in seedlings, obtained from these plants seeds, caused by sulphurous gas. Product Description popup.authors popup.nrat_date 2020-04-02 Close