Nuclear mtDNA pseudogenes as a source of new variants of mitochondrial genes: A case study of Siberian rubythroat Luscinia calliope (muscicapidae, aves)


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Аннотация

First evidence for the presence of copies of mitochondrial cytochrome b gene of the subspecies group Luscinia calliope anadyrensis–L. c. camtschatkensis in the nuclear genome of nominative L. c. calliope was obtained, which indirectly indicates the nuclear origin of the subspecies-specific mitochondrial haplotypes in Siberian rubythroat. This fact clarifies the appearance of mitochondrial haplotypes of eastern subspecies by exchange between the homologous regions of the nuclear and mitochondrial genomes followed by fixation by the founder effect. This is the first study to propose a mechanism of DNA fragment exchange between the nucleus and mitochondria (intergenomic recombination) and to show the role of nuclear copies of mtDNA as a source of new taxon-specific mitochondrial haplotypes, which implies their involvement in the microevolutionary processes and morphogenesis.

Авторлар туралы

L. Spiridonova

Institute of Biology and Soil Sciences

Хат алмасуға жауапты Автор.
Email: spiridonova@biosoil.ru
Ресей, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022

Ya. Red’kin

Zoological Museum of Moscow State University

Email: spiridonova@biosoil.ru
Ресей, Moscow

O. Valchuk

Institute of Biology and Soil Sciences

Email: spiridonova@biosoil.ru
Ресей, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022

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