Архив электронных ресурсов
[Зарегистрироваться]
 

eKhNUIR >
Біологічний факультет >
Наукові видання Біологічний факультет >
Батрахологія >

Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на этот ресурс: http://dspace.univer.kharkov.ua/handle/123456789/11815

Название: Gamete production patterns and mating systems in water frogs of the hybridogenetic Pelophylax esculentus complex in northeastern Ukraine
Авторы: Biriuk, O. V.
Shabanov, D. A.
Korshunov, A. V.
Borkin, L. J.
Lada, G. A.
Pasynkova, R. A.
Rosanov, J. M.
Litvinchuk, S. N.
Ключевые слова: Polyploidy
gametogenesis
hybrid amphispermy
DNA flow cytometry
genome size
Дата публикации: 2016
Издатель: Journal of Zoological Systematics and Evolutionary Research
Библиографическое описание: Journal of Zoological Systematics and Evolutionary Research. –2016 –Vol. 54, №2 – doi:10.1111/jzs.12132
Реферат: Hybridization and polyploidy play an important role in animal speciation. European water frogs of the Pelophylax esculentus complex demonstrate unusual genetic phenomena associated with hybridization, clonality and polyploidy which presumably indicate an initial stage of reticulate speciation. The Seversky Donets River drainage in north-eastern Ukraine is inhabited by both sexes of the diploid and triploid hybrid P. esculentus and only one parental species Pelophylax ridibundus. Based on the presence of various types of hybrids, all populations studied can be divided into three geographical groups: I) P. ridibundus—P. esculentus without triploids; II) P. ridibundus—P. esculentus without diploid hybrids; and III) P. ridibundus—P. esculentus with a mixture of diploids and triploids. A study of gametogenesis revealed that diploid P. esculentus in populations of the first type usually produced haploid gametes of P. ridibundus and a mixture of haploid gametes that carried one or another parental genome (hybrid amphispermy). In populations of the second type, hybrids are derived from crosses of P. ridibundus males with triploid hybrid females producing haploid eggs with a genome of P. lessonae. Therefore, we suggest that clonal genome duplication in these eggs might be the result of suppression of second polar body formation or extra precleavage endoreduplication. In populations of the third type, some diploid females can produce diploid gametes. Fertilization of these eggs with haploid sperm can result in triploid hybrids. Other hybrids here produce haploid gametes with one or another parental genome or their mixture giving rise to new diploid hybrids.
URI: http://dspace.univer.kharkov.ua/handle/123456789/11815
Располагается в коллекциях:Батрахологія

Файлы этого ресурса:

Файл Описание РазмерФормат
Biriuk_ea_2016_Gamete production patterns and mating systems in water frogs.pdf541,04 kBAdobe PDFЭскиз
Просмотреть/Открыть
Просмотр статистики

Все ресурсы в архиве защищены авторским правом, все права сохранены.

 

Valid XHTML 1.0! Яндекс цитирования DSpace Software Copyright   ©   2002-2008   MIT   and   Hewlett-Packard - Обратная связь