Цель работы – изучение популяционных систем среднеевропейских зеленых лягушек (Pelophylax esculentus complex) и их динамики в пределах Русской равнины. Многолетние (от 14 до 39 лет) полевые исследования позволили выявить ряде мест изменения типов систем. Отмечен переход от LE-типа к REL-типу, а также E-типа RE-типу. Основная причина высокая способность расселению озерной лягушки, Pelophylax rid...

Riassunto. le specie alloctone invasive sono una delle principali minacce alla biodiversità. in questa rassegna vengono analizzati i principali taxa di anfibi e rettili attualmente invasivi in italia: Xenopus laevis; Lithobates catesbeianus; Pelophylax kurtmuelleri / P. ridibundus; Trachemys scripta. Per ogni taxon, si evidenzia la distribuzione nativa ed invasiva, le cause dell’introduzione, e...

mtDNA of the hybridogenetic hybrid frog Rana esculenta from Switzerland, Austria, and Poland was compared to mtDNA of the parental species R. ridibunda and R. lessonae using electrophoretic analysis of restriction enzyme fragments. Two mtDNA phenotypes, with 3.4% sequence divergence, are present in R. lessonae: type C is found in Poland, and type D is found in Switzerland. Rana ridibunda from P...

Immune genes of the major histocompatibility complex (MHC) are among the most polymorphic genes in the vertebrate genome. Due to their polymorphic nature, they are often used to assess the adaptive genetic variability of natural populations. This study describes the first molecular characterization of 13 partial MHC class IIB sequences from three European ranid frogs.  The utility of previously...

Anurans have been introduced in many parts of the world and often become invasive over large geographic areas. Although predation is involved declines invaded amphibian populations, there a lack quantitative assessments evaluating potential risk posed to native species. This particularly true for Pelophylax water frogs, which western Europe, but no studies date examined their on other amphibian...

To investigate the occurrence of the amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd) in France, we examined 575 amphibians collected between 1875 and 2008 for the presence of the infection in the epidermis. We confirmed Bd in seven of the 15 stations investigated in the Aquitaine and Poitou-Charentes regions. Histological examination revealed the presence of the infectious agent as...

On the basis of molecular genetic analysis intron-1 nuclear serum albumin gene (SAI-1) were identified 177 individuals Pelophylax esculentus complex 9 localities Belgorod. Two types population systems R and RE identified. Pure populations L-type, E-type LE-type as well P. lessonae not

In many organisms, the specification of cell fate and the formation of embryonic axes depend on a proper distribution of maternal mRNAs during oogenesis. Asymmetrically localized determinants are required both for embryonic axes and germline determination in anuran amphibians. As a model system of these processes, we have used a species complex of the genus Pelophylax (Rana), characterized by a...

Informed conservation management requires exact knowledge on the species diversity of taxon group in focus within a geographic area, specifically occurrence endemics. In Turkey, there are three water frog taxa genus Pelophylax; one is widespread P. bedriagae, other two geographically restricted to either Thrace (P. ridibundus) or Anatolian Lake district caralitanus). The status Beyşehir caralit...