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Особенности завершивших метаморфоз травяных лягушек южных и северных популяцийстатья
- Авторы: Корнилова М.Б., Сербинова И.А., Ляпков С.М.
- Сборник: Вопросы герпетологии. Материалы Третьего съезда Герпетологического общества им. А. М. Никольского
- Год издания: 2008
- Место издания: Издательство Зоологического института РАН Санкт-петербург
- Первая страница: 185
- Последняя страница: 190
- Аннотация: Geographical differences and structure of phenotypic variation in larval life-history traits were studied in Rana temporaria. The full- and half-sib groups were obtained by artifi cial crosses of matured frogs collected in three spatially separated populations in Minsk, Moscow and Kirov regions. The higher mean body length (SM), higher mean growth rate until metamorphosis (GR) and the lower mean duration of larval period (LP) were revealed in metamorphs raised under equal laboratory conditions as compared with ones from natural ponds in each of two populations (Moscow and Kirov regions). The revealed counter-gradient variation did not correspond to extremely low heritability in GR in all three populations and to low heritability in SM and LP in southern population. The genetic and phenotypic correlations of each pair of traits were similar (both in magnitude and sign) in all three populations. The body length of males and females and the egg size affected differently on each trait and do not provide advantage in all three traits simultaneously.
- Добавил в систему: Ляпков Сергей Марленович