Oleg A. Ermakov

Penza State University

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СВ

С. В. Титов

Penza State University

Anton O. Svinin

University of Tyumen

Alexander Yu. Ivanov

Penza State University

Spartak N. Litvinchuk

Institute of Cytology

Evgeniy Simonov

Institute of Systematics and Ecology of Animals

ВЛ

В. Л. Сурин

National Research Center for Hematology Russian Academy of Medical Sciences

Renat I. Zamaletdinov

Kazan Federal University

I. V. Bashinskiy

Severtsov Institute of Ecology and Evolution

Oleg V. Brandler

Koltzov Institute of Developmental Biology

Alexander B. Ruchin

National Research Mordovia State University

Cooperative Institutions

Russian Academy of Sciences

Lomonosov Moscow State University

Penza State University

Severtsov Institute of Ecology and Evolution

Zoological Institute

Koltzov Institute of Developmental Biology

Engelhardt Institute of Molecular Biology

Samara Federal Research Scientific Center

National Research Mordovia State University

Southern Scientific Center

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Diversity of trematodes from the amphibian anomaly P hotspot: Role of planorbid snails

PLoS ONE (2023)

Anton O. Svinin Igor V. Chikhlyaev I. V. Bashinskiy В. В. Осипов Leonid A. Neymark

Trematode infection of the second intermediate hosts can lead to changes in their fitness and, as a result, a change in the invasion rate of animal communities. It is especially pronounced during the invasion of parasite species that reduce activity due to the manipulation of hosts through the changes of their morphology and physiology. One of these cases is an anomaly P syndrome hotspot found in some populations of water frogs and toads in Europe caused by the trematode Strigea robusta metacercariae. The occurrence of pathogen and their participation in ecosystems are intrigues questions in the anomaly P phenomenon, as well as the role of planorbid snails that serve as the first intermediate hosts for many trematode species. Herein, we focused on trematodes spectra from planorbid snails and amphibians from the anomaly P hosts with the aim to undetected interactions between the pathways of parasites. Emerging cercariae of 6802 planorbid snails of dominant species ( Planorbarius corneus , Planorbis planorbis , and Anisus spp.) were detected by both morphological and molecular methods in seven waterbodies in Privolzhskaya Lesostep Nature Reserve (Russia). A total of 95 sequences of 18 species were received, and 48 sequences were unique and did not present in any genetic databases. The 18 species of trematodes from snails and 14 species of trematodes from amphibian hosts ( Pelophylax ridibundus ; Ranidae; Anura) were detected. Three species ( Echinostoma nasincovae , Tylodelphys circibuteonis and Australapatemon burti ) was new for the trematode fauna of the Middle Volga River region and Russia as a whole. Eleven species of parasitic flatworms have amphibians in their life cycles and nine species used amphibians as metacercariae hosts: Echinostoma nasincovae , E . miyagawai , Echinoparyphium recurvatum , Tylodelphys circibuteonis , Neodiplostomum spathula , Paralepoderma cloacicola , Macrodera longicollis , Strigea robusta , and Strigea strigis . The occurrence of trematode species from planorbid mollusks and frogs were compared.

Digenea

Freshwater mollusc

Flatworm

10.1371/journal.pone.0281740

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Citations (5)

New Occurrences of Anomalous Specimens of Anuran Amphibians in Northwest Upper Poochye

KnE Life Sciences (2018)

V.A. Korzikov А. И. Файзулин Oleg A. Ermakov С. К. Алексеев Victor V. Aleksanov

10.18502/kls.v4i3.2107

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Citations (3)

Occurrence of the amphibians in the Volga and Don River basins (Russia): research in 1996-2020

Global Biodiversity Information Facility (2020)

Alexander B. Ruchin V.A. Korzikov Elvira Sharapova Renat I. Zamaletdinov Oleg A. Ermakov

The dataset contains information on amphibian occurrence in the Volga river basin and adjacent territories, located most part on the Russian plain of European Russia. Dataset is based on its own studies that were conducted in the years 1996-2020.

Volga region

10.15468/7atyds

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Citations (76)

Распространение и происхождение двух форм озерной лягушки Pelophylax ridibundus complex (Anura, Ranidae) на Камчатке по данным анализа митохондриальной и ядерной ДНК

Зоологический журнал (2017)

С.М. Ляпков Oleg A. Ermakov С. В. Титов

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A Mollusk <i>Planorbarius corneus</i> is an Intermediate Host of the Infectious Agent of Rostand’s «Anomaly P» in Green Frogs

Russian Journal of Herpetology (2019)

Anton O. Svinin I. V. Bashinskiy Spartak N. Litvinchuk Leonid A. Neymark Alexander Yu. Ivanov

Here we present the first new data about the mysterious «anomaly P» of green frogs (genus Pelophylax) in about 50 years. We established that the gastropod Planorbarius corneus could be an intermediate host (or vector) of the infectious agent of the anomaly P. Symmetrical cases of polydactyly, the anomaly «cross» and heavy cases of the anomaly P, which were previously found in natural populations in the European part of Russia and recently obtained in laboratory, can be caused by this infectious agent. As the most probable cause, we assume a species of trematodes, for which the first intermediate host is P. corneus, from which they infest tadpoles of green frogs.

Anomaly (physics)

10.30906/1026-2296-2019-26-6-349-353

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Citations (3)

A New Species of <i>Acanthosaura</i> Gray, 1831 (Squamata: Agamidae) from Central Highlands, Vietnam

Russian Journal of Herpetology (2020)

Natalia B. Ananjeva Oleg A. Ermakov Sang Ngoc Nguyen Tao Thien Nguyen Robert W. Murphy

Herein, we describe a new agamid species of the genus Acanthosaura from Central Highlands of Vietnam: Gia Lai Province, Kon Chu Rang NR, and Kon Tum Province: Kon Plông and Ngoc Linh Mountain based on morphological and molecular data. Acanthosaura prasina sp. nov. is distinguished from all congeners by a combination of the following morphological characters. Acanthosaura prasina sp. nov. differs from A. capra, A. murphyi, and A. nataliae by the presence of a short spine on each side of the neck and a smaller body size. From the known species of «lepidogaster» complex and A. coronata it differs in the arrangement of dorsal crests with a distinct double row of vertebral scales, from A. brachypoda in a smaller body size, longer tail and limbs, fewer supra- and infralabials and coloration patterns with a white area on lips and shoulders; from A. lepidogaster by lacking a dark marking on the nape and the absence of a distinct diastema; from A. phongdienensis by lacking a dark marking on the nape. We provide a cyt b-based estimation of diversity of the genus Acanthosaura. A. prasina sp. nov. differs from A. phongdiensis, A. coronata, A. lepidogaster, A. armata, A. crucigera, A. nataliae, A. phuketensis, and Acanthosaura sp. SK in p-distances of 15.4, 24.5, 14.7, 14.6, 16.3, 14.6, 15.4, and 24.4%, respectively. The new species currently known from three localities from Central Highlands was recorded from 800 to 1700 m a.s.l. in the evergreen polydominant forests in the mountainous regions of Gia Lai and Kon Tum provinces. This is the 16th species of Acanthosaura and the ninth species of the genus from Vietnam.

Agamidae

Evergreen forest

10.30906/1026-2296-2020-27-4-217-230

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Citations (2)

Riverine barriers and geographic variation in little ground squirrel Spermophilus pygmaeus (Sciuridae, Rodentia) based on mitochondrial cytochrome b gene sequences

Russian Journal of Theriology (2023)

Oleg A. Ermakov Oleg V. Brandler Alexander Yu. Ivanov А.Д. Иванова A.A. Kesyan

Little ground squirrel (Spermophilus pygmaeus) typically inhabit semi-deserts and dry steppes of the European plains and Kazakhstan.Range-wide latitudinal distribution along with major river separation zones makes this species a proper model for testing the riverine barrier hypothesis.For the first time, we have evaluated genetic variation in little ground squirrel populations throughout its range based on the analysis of cytochrome b gene sequences.A high level of genetic diversity (4.9%) among "western" and "eastern" populations of the little ground squirrel has evidenced the Volga River to be an effective biogeographic barrier.A barrier role of the Ural River is expressed to a lesser extent, and the Don River has neither effect on the restriction to gene flow and phylogeographic structure.The genetic diversity data has confirmed the hypothesis on S. pygmaeus speciation in the long-term Ciscaucasia refugium, and the appearance of the mountain ground squirrel (S. p. musicus) in the Middle Pleistocene.

Ground squirrel

Variation (astronomy)

10.15298/rusjtheriol.22.1.03

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Citations (3)

The mitochondrial phylogeography of the Crimean endemic lizard Darevskia lindholmi (Sauria, Lacertidae): Hidden diversity in an isolated mountain system

Vertebrate Zoology (2021)

Oleg V. Kukushkin Oleg A. Ermakov Iulian Gherghel S. A. Lukonina Anton O. Svinin

Abstract The Lindholm rock lizard, Darevskia lindholmi , is the only member of the genus Darevskia whose range is restricted solely to Europe, representing a local endemism found only in the Crimean Mountains. In our study, we investigated the cytochrome b gene (mtDNA) of 101 D. lindholmi sequences from 65 Crimean localities, representing its entire range. We found that D. lindholmi is highly genetically structured, and its range is divided into populations belonging to three mitochondrial lineages. The Lindholm rock lizard populations inhabiting the middle part of the Crimean Mountains (further referred to as the Central lineage) are sharply differentiated from the other two lineages (the Common and the Southwestern lineages), which are present in most of the species range. The genetic distance between the Central lineage and the other two taken together is 4.6%, according to our results, suggesting that the divergence occurred during the Early Pleistocene. The narrowly distributed Southwestern lineage and the widespread Common lineage, on the other hand, are differentiated by 1%. Field observations on the representatives of the main evolutionary groups show that their ecology is also different: the Central lineage is a mesophilic and cold-resistant form, while the other two closely related lineages are more xerophilic and thermophilic. Results of the potential ranges modeling and ecological niche analysis confirm that the genetic lineages occupy different niches of the Crimea. Furthermore, the area of inhabitation of the Central lineage splits the western and eastern parts of the Common lineage range, while the Southwestern lineage is restricted along the coast of the southwestern coast of the peninsula. The long-term co-existence of deeply divergent sister mitochondrial lineages in a relatively small (circa 7,000 km 2 ) isolated mountain system serves as a mesocosm for understanding the speciation process. Our data suggest that the Central lineage warrants further taxonomic investigation.

Lacertidae

Lineage (genetic)

Endemism

10.3897/vz.71.e62729

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Citations (3)

Taxonomic separation of the red-cheeked ground squirrel from South-East Kazakhstan

Julius-Kühn-Archiv (2018)

Elena V. Volodina Vera A. Matrosova А.С. Иванова Ilya A. Volodin Dmitry Y. Alexandrov

Ground squirrel

Separation (statistics)

Source