Polymorphic Loci of Adaptively Significant Genes Selection for Determining Nucleotide Polymorphism of L. Populations in the Urals.

BACKGROUND

Scots Pine is one of the main forest-forming species in boreal forests; it has great economic and ecological significance. This study aimed to develop and test primers for detecting nucleotide polymorphisms in genes that are promising for detecting adaptive genetic variability in populations of in the Urals and adjacent territories.

OBJECTIVES

The objects of the study were 13 populations of Scots Pine located in the Perm Territory, Chelyabinsk Region, and the Republic of Bashkortostan.

RESULTS

Sixteen pairs of primers to loci of potentially adaptively significant genes were developed, from which three pairs of primers were selected to detect the nucleotide diversity of the studied populations. The indicator of total haplotype diversity determined in the three studied loci varied from 0.620 ( locus) to 0.737 ( locus) and, on average, amounted to 0.662. The nucleotide diversity indicators in in the study region were, on average, low ( = 0.004, = 0.013). Their highest values were found at the locus ( = 0.005; = 0.032), and the lowest were found at the locus ( = 0.003; = 0.002). This indicates that is the most conserved of the three studied loci. In the three studied loci associated with adaptation to environmental factors, 97 polymorphic positions were identified. The 13 populations of are characterized by an average level of genetic diversity ( = 0.662; = 0.004; = 0.013).

CONCLUSIONS

The polymorphic loci of adaptively significant genes of can help identify the adaptive potential of pine forests in conditions of increasing ambient temperatures.