Clusters of Repetitive DNA Sequences in Chromosomes of Voles of the Subgenus Microtus (Microtus, Arvicolidae)

N. V. Rubtsova; T. V. Karamysheva; N. B. Rubtsov

doi:10.1134/S1022795419090126

Clusters of Repetitive DNA Sequences in Chromosomes of Voles of the Subgenus Microtus (Microtus, Arvicolidae)

N. V. Rubtsova, T. V. Karamysheva, N. B. Rubtsov

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Abstract

The study is focused on the analysis of the mechanisms underlying the formation and distribution of repeat clusters in mammalian chromosomes, as exemplified by a group of closely related species of voles of the subgenus Microtus (Microtus, Arvicolini). The distribution of repetitive sequences that are the parts of de novo formed heterochromatic regions of Microtus arvalis in two chromosomal forms of this species and three closely related species, M. rossiaemeridionalis, M. kirgisorum, and M. transcaspicus, was analyzed in detail. Possible relationships between the introduction of repetitive sequences, their transpositions, amplification, and the formation of reproductive isolation, which can lead to speciation, are discussed.

Original language	English
Pages (from-to)	1093-1102
Number of pages	10
Journal	Russian Journal of Genetics
Volume	55
Issue number	9
DOIs	https://doi.org/10.1134/S1022795419090126
Publication status	Published - 1 Sep 2019

Keywords

FISH
genome and karyotype evolution
microdissection of metaphase chromosomes
repetitive sequences
speciation
voles of the subgenus Microtus

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10.1134/S1022795419090126

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abstract = "The study is focused on the analysis of the mechanisms underlying the formation and distribution of repeat clusters in mammalian chromosomes, as exemplified by a group of closely related species of voles of the subgenus Microtus (Microtus, Arvicolini). The distribution of repetitive sequences that are the parts of de novo formed heterochromatic regions of Microtus arvalis in two chromosomal forms of this species and three closely related species, M. rossiaemeridionalis, M. kirgisorum, and M. transcaspicus, was analyzed in detail. Possible relationships between the introduction of repetitive sequences, their transpositions, amplification, and the formation of reproductive isolation, which can lead to speciation, are discussed.",

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AB - The study is focused on the analysis of the mechanisms underlying the formation and distribution of repeat clusters in mammalian chromosomes, as exemplified by a group of closely related species of voles of the subgenus Microtus (Microtus, Arvicolini). The distribution of repetitive sequences that are the parts of de novo formed heterochromatic regions of Microtus arvalis in two chromosomal forms of this species and three closely related species, M. rossiaemeridionalis, M. kirgisorum, and M. transcaspicus, was analyzed in detail. Possible relationships between the introduction of repetitive sequences, their transpositions, amplification, and the formation of reproductive isolation, which can lead to speciation, are discussed.

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KW - microdissection of metaphase chromosomes

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Clusters of Repetitive DNA Sequences in Chromosomes of Voles of the Subgenus Microtus (Microtus, Arvicolidae)

Abstract

Keywords

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