- Insect-Plant Interactions and Control
- Study of Mite Species
- RNA Research and Splicing
- Plant and animal studies
- Forest Insect Ecology and Management
- Lepidoptera: Biology and Taxonomy
- Plant Parasitism and Resistance
- RNA modifications and cancer
- Nuclear Structure and Function
- Hymenoptera taxonomy and phylogeny
- Parasite Biology and Host Interactions
- Insect symbiosis and bacterial influences
- Animal Ecology and Behavior Studies
- Genetic diversity and population structure
- Ubiquitin and proteasome pathways
- Microtubule and mitosis dynamics
- Cancer-related gene regulation
- Retinoids in leukemia and cellular processes
- Protist diversity and phylogeny
- Neuroinflammation and Neurodegeneration Mechanisms
- Protein Degradation and Inhibitors
- Insect and Arachnid Ecology and Behavior
- interferon and immune responses
- Coccidia and coccidiosis research
- Algal biology and biofuel production
St Petersburg University
2019-2025
University of Delaware
2000
Based on molecular phylogenetic analysis of all relevant taxa, we propose to consider the species previously classified as members Pseudophilotes, Palaeophilotes, Rubrapterus, and Inderskia belonging a single genus, valid name which is Palaeophilotes. This genus can be divided into two subgenera: Rubrapterus with P. bavius fatma, Palaeophilotes sensu stricto. The latter subgenus includes four lineages nine species: (1) abencerragus lineage (single abencerragus), (2) barbagiae barbagiae), (3)...
Abstract Gymnophallidae is one of the digenean families featuring bivalves as first intermediate hosts. However, exact bivalve host species remain unknown for most members this family. Gymnophallids have been targets in our continuous efforts to reveal diversity digeneans higher north. Here, we focus on Gymnophallus minor , which found eiders from various locations Arctic and sub-Arctic. Sexual adults (maritae) G. can be easily identified because they a distinctive character: roughly equal...
In this work, we put forward a hypothesis about the decisive role of multivalent nonspecific interactions in early stages PML body formation. Our analysis isoform sequences showed that some isoforms, primarily PML-II, are prone to phase separation due their polyampholytic properties and disordered structure C-terminal domains. The similarity charge domains PML-II PML-VI isoforms made it possible for first time detect migration from bodies periphery cell nucleus, similar isoforms. We found...
In this work, we performed a comparative study of the formation PML bodies by full-length isoforms and their C-terminal domains in presence absence endogenous PML. Based on analysis distribution intrinsic disorder predisposition amino acid sequences isoforms, regions starting from residue 395 (i.e., encoded exons 4–6) were assigned as these proteins. We demonstrate that each full-sized nuclear is capable forming liquid-droplet compartments other isoforms. These droplets possess dynamic...
Paramecium (Ciliophora) systematics is well studied, and about twenty morphological species have been described. The may include several genetic species. However, molecular phylogenetic analyses revealed that the diversity within could be even higher has raised a problem of cryptic whose statuses remain uncertain. In present study, we provide characterization two novel While lynni n. sp., although morphologically similar to P. multimicronucleatum, phylogenetically separated from all other...
Renicolids are parasites of aquatic birds. Their species identification based on morphological characters is problematic. Here, we revised the composition Renicola spp. parasitising anatids in nearshore areas northern seas using integrated and molecular data. We redescribed somateria verified diagnosis R. mediovitellata. established that first intermediate host (FIH) mollusc Buccinum undatum, while FIHs mediovitellata Nucella molluscs. described intramolluscan stages both species. formed a...
The analysis of genomic DNA polymorphism is one widely used approaches for studying the genetic structure natural populations. It has been successfully applied to various plants. However, many species have not yet studied, which primarily due methodological difficulties in isolating well-purified and non-degraded DNA. These are fact that plants possess numerous bioorganic compounds (polysaccharides, polyphenols, lipids, etc.) contaminate significantly reduce its quality. Such include marsh...
Natural hybridization is rather widespread and common in animals can have important evolutionary consequences. In terms of taxonomy, exploring introgression crucial defining species boundaries testing taxonomic hypotheses. the present paper, we report on natural hybrid specimens between Ahlbergia frivaldszkyi (Lederer, 1853) Callophrys rubi (Linnaeus, 1758). To test hypothesis their origin, employed molecular mitochondrial (COI gene) nuclear (wingless, RPS5, Ca-ATPase genes) markers commonly...
The genus Colias Fabricius, 1807 includes numerous taxa and forms with uncertain status taxonomic position. Among such are mongola Alphéraky, 1897 tamerlana Staudinger, 1897, interpreted in the literature either as conspecific forms, subspecies of different but morphologically somewhat similar species, or distinct species-level taxa. Based on mitochondrial nuclear DNA markers, we reconstruct a phylogeographic pattern question. We recover include our analysis barcodes century-old type...
Eriophyoid mites of the genus Trisetacus Keifer are widespread parasites conifers. A new oligophagous species, T. indelis n. sp., was discovered severely damaging seeds North American junipers (Juniperus osteosperma, J. occidentalis, and californica) in western USA. It has two codon deletions mitochondrial gene Cox1 rarely detected Eriophyoidea includes distinct morphological dimorphism females. phylogenetic analysis based on amino acid alignment translated sequences using a large set...
We report on one new species, Aceria asphodelinis n. sp., from inflorescences of Asphodeline taurica (Pall. ex Bieb.) Kunth (Xanthorrhoeaceae), combination, Paraphytoptus chondrillae (Canestrini 1891) comb. (transferred Aceria), deformed Chondrilla juncea L. (Compositae), and six records eriophyine mites (Eriophyoidea, Eriophyidae, Eriophyinae) in southeast Crimea: peucedani flowers Seseli tortuosum (Apiaceae), salviae (Nalepa Salvia tesquicola Klokov & Pobed. (Lamiaceae), erinea...
Subterranean rodents represent an interesting model system for molecular ecologists. Their lifestyle is associated with fragmented environments, limited dispersal ability, and low fecundity. These characteristics all are expected to increase inter- intrapopulation differentiation reduce intra-population genetic diversity, yet the published empirical data revealed lack of generality this pattern. This emphasizes importance accumulating more on individual species understand what factors shape...
Natural aging and age-related diseases involve the acceleration of replicative aging, or senescence. Multiple proteins are known to participate in these processes, including promyelocytic leukemia (PML) protein, which serves as a core component nuclear-membrane-less organelles PML nuclear bodies (PML-NBs). In this work, morphological changes PML-NBs alterations protein localization at transition primary fibroblasts senescent state were studied by immunofluorescence. The obtained from both...
New records and supplementary morphological descriptions of two rarely encountered Trisetacus species from Pinaceae, T. abietis Postner 1968 cedri (Nalepa 1920), are reported. was found in Abkhazia under the needle epidermis Abies nordmanniana (Steven) Spach, a conifer endemic to mountainous Asian coast Black Sea. buds introduced Cedrus deodara (Roxb. ex D. Don) G. Don South Africa. It is only member known spp. For first time we provide sequences genes (COI D1–D2 28S) (MN022221, MN025333)...
At the molecular level, aging is often accompanied by dysfunction of stress-induced membrane-less organelles (MLOs) and changes in their material state. In this work, we analyzed proteins included proteome stress granules (SGs) P-bodies for tendency to transform state these MLOs. Particular attention was paid whose gene expression during replicative aging. It shown that studied MLOs practically does not differ characteristics consists completely or partially intrinsically disordered...
The genus Colias Fabricius, 1807 includes numerous taxa and forms with uncertain status taxonomic position. Among such are mongola Alphéraky, 1897 tamerlana Staudinger, 1897, interpreted in the literature either as conspecific forms, subspecies of different but morphologically somewhat similar species or distinct species-level taxa. Based on mitochondrial nuclear DNA markers, we reconstructed a phylogeographic pattern question. We recover include our analysis barcodes century-old type...
Typically, females of eriophyoid mites the large conifer-associated genus Trisetacus Keifer 1952 have long spermathecal tubes, which are at least twice as spermathecae. In this paper, we report on four species collected in USA from Cupressaceae that possess atypical short tubes and demonstrate a distinct reduction trend leg chaetotaxy when setae lʹ and/or bv II may be absent, ftʹ very short. They are: 1) virginianus n. sp. 2) T. thujae (Garman 1883, = thujivagrans Smith 1977a syn. nov.)...
We report on one new cecidophyine species, Cecidophyes fibigiae n. sp. from Fibigia clypeata (L.) Medik. (Brassicaceae) and three combinations seven records of phyllocoptine mites in Crimea: Abacarus hystrix (Nalepa 1896) Elytrigia elongata (Host) Nevski (Poaceae), Aculodes cf holcusi Skoracka 2004 Aegilops biuncialis Vis. Aculops coronillae (Canestrini & Massalongo, 1893) comb. Securigera varia Lassen (Fabaceae), longifilis 1891) Onobrychis miniata (Kit.) DC. Aculus Galium humifusum...