The genetic structure of eight Mus musculus L. populations in Primorskii krai was studied with the use of taxon-specific markers of different inheritance systems: nDNA (RAPD), mtDNA (D-loop), and chromosomes. The results obtained demonstrate that although the compared nuclear marker characteristics (nDNA and chromosomes) have the same basis they are not linke with each other and, moreover, are often mutually inconsistent. Discordance in the inheritance of the marker characteristics in most of the animals studied is a result of extensive hybridization involving two to four house mouse subspecies. To identify taxonspecific nuclear markers revealed by RAPD, some RAPD PCR products were cloned, and their localization on chromosomes was determined. It was found that some fragments similar in size consist of two different comigrating sequences that are localized on different chromosomes and belong to different subspecies. All sequenced anonymous markers are localized in protein-coding genes. The functions of genes containing the marker sequences have been established. Differences in the taxon-specific RAPD fragments are associated with changes in the structure of important functional genes, and this can be considered as a significant genetic marker.
Russian Journal of Genetics – Springer Journals
Published: Jan 20, 2011
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