About
30
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Introduction
Current institution
Current position
- Postdoctoral researcher
Additional affiliations
October 2018 - February 2024
Publications
Publications (30)
Pelophylax esculentus (genotype LR), an interspecific hybrid of P. ridibundus (genotype RR) and P. lessonae (genotype LL), is one of the most studied examples of hemiclonal hybridogenic vertebrates. In most populations, hybrids produce clonal gametes of one parental species and backcross with the other parental species, forming a new generation of...
European water frogs from the Pelophylax esculentus complex include two sexual species, P. ridibundus and P. lessonae, and their hybrids, which usually clonally transmit one of the parental species' genomes. This unique reproductive strategy allows hybrids to reproduce with one or both parental species, creating diverse population systems. Unlike m...
The chytrid Batrachochytrium dendrobatidis
(Bd) is a widespread fungus causing amphibian
declines across the globe. Although data on Bd occurrence
in Eastern Europe are scarce, a recent species
distribution model (SDM) for Bd reported that western
and north-western parts of Ukraine are highly suitable
to the pathogen. We verified the SDM-predicted...
Meiosis is a conservative process in all sexual organisms which ensures fertility and is central for producing genetic diversity by recombination and random segregation of parental chromosomes. Yet unexplored mechanisms may disrupt it and cause loss of sex followed by the emergence of clonal modes of reproduction. Interspecific hybridization is the...
Vocalization in anurans is mainly studied in the context of male-specific advertisement calls, while release calls – characteristic of both sexes – usually attract less attention. Here we compare release calls of both sexes of hybrid Pelophylax esculentus (considering triploid hybrids) and its parental species P. ridibundus in Ukrainian population...
Developmental anomalies and malformations in amphibians serve as a marker of extreme or unstable environmental conditions and can affect the reproduction and viability of amphibians. In the Czech Republic, anomalies were reported for amphibians from the Elbe and the Danube rivers basins, but not from the Oder River. Here, we report anomalies in thr...
Pelophylax esculentus (геном позначається як LR) є міжвидовим гібридом ставкової жаби Pelophylax lessonae (геном LL) і озерної жаби Pelophylax ridibundus (геном RR). Розмноження гібридів в типовому випадку відбувається за рахунок клональної передачі одного з батьківських геномів. Гібриди зазвичай співіснують з одним або обома батьківськими видами в...
Pelophylax esculentus complex hemiclonal systems are a unique evolutionary object due to intricate mechanisms of their sustainability at genomic, gamete, and developmental levels. Chornobyl Exclusion Zone (Ukraine) presents a no less unique object of nature evolution under the unprecedented radiation impact and human pressure decrease. By
measuring...
We propose a modified and updated protocol to obtain mitotic chromosomes from the regenerated tissue of Pelophylax tadpole tail tips. Chromosomal preparations from regenerated tissue results in high-quality and clean slides suitable for further staining and study. Tadpoles remain alive, undergo minimum suffering, and can be grown to adulthood for f...
Pelophylax esculentus is an interspecies hybrid of marsh frog P. ridibundus and pool frog P. lessonae. The hybrids are usually presented by diploid and triploid forms, and coexist and crossbreed with one or both parental species in the hemiclonal population systems (HPS). Siverskyi Donets river basin is known for its diversity of HPS and was descri...
Interspecies hybrid frogs Pelophylax esculentus and one of its parental species Pelophylax ridibundus inhabit the Siversky Donets center of diversity of water frogs in Eastern Ukraine. These frogs can crossbreed and form progeny in population systems which are called hemiclonal (HPS). Such systems have their own exceptional features which make them...
Pelophylax esculentus is an interspecies hybrid of marsh frog P. ridibundus and pool frog P. lessonae. The hybrids are usually presented by diploid and triploid forms, and coexist and crossbreed with one or both parental species in the hemiclonal population systems (HPS). Siverskyi Donets river basin is known for its diversity of HPS and was descri...
We studied composition of Pelophylax esculentus complex representatives from Iskiv pond (81 adult frogs, 7 tadpoles). We estimated ratio of triploid P. esculentus (using erythrocyte cytometry and karyological analysis) and sex proportion (by outer and inner morphological features). Adults were presented only by hybrids and only 2 of them were femal...
We propose hypothesis that defines hemiclonal inheritance as a rare natural evolutional way to overcome interspecies hybrid sterility (as well as clonality and polyploidy). The main consequences of hemiclonal inheritance are clonal evolution of genomes and homological interspecies recombination. On the example of hybridogenic Pelophylax esculentus...
Ab initio prediction of mouse arginyl-tRNA-protein transferase 1 (R-transferase, EC 2.3.2.8) and protein LIAT1 structures was performed by I-Tasser server. Molecular docking studies of the protein models revealed that potential heme binding sites didn’t coincide with the sites of interaction with protein partner in both R-transferase and LIAT1 prot...
The paper presents the results of investigation of cryoprotectants' effect on the viability of the seeds after freezing. The study was conducted on such agricultural crops as Zea saccharata Sturtev, Beta vulgari, Daucu carota. It was shown that the most ways of cryotreatment positively affect at seed viability.
