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Genome reduction in a hemiclonal frog Rana esculenta from radioactively contaminated areasстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 апреля 2017 г.
- Авторы: Vinogradov A.E., Chubinishvili A.T.
- Журнал: Genetics
- Том: 151
- Номер: 3
- Год издания: 1999
- Издательство: Genetics Society of America
- Местоположение издательства: United States
- Первая страница: 1123
- Последняя страница: 1125
- Аннотация: A decrease in genome size was found in the hemiclonal hybridogenetic frog Rana esculenta (R. ridibunda x R. lessonae) from areas of radioactive contamination that resulted from the Chernobyl fallout. This genome reduction was of up to 4% and correlated with the background level of gamma-radiation (linear regression corresponded on average to -0.4% per doubling of radiation level). No change in genome size was observed in the coexisting parental species R. lessonae. There was no correlation between genome size and body mass in R. esculenta froglets, which have metamorphosed in the year of the study. The hemiclonal forms may become a suitable object for study on biological significance of individual DNA sequences (and of genome size as a whole) because mutant animals with deletions in a specified genome can arise after a low radiation dose. The proneness to genetic damage makes such forms also a prospective bioindicator of radioactive (and possibly other mutagenic) pollution with the effects of genetic damage conveniently and rapidly monitored by DNA flow cytometry.
- Добавил в систему: Виноградов Александр Евгеньевич