>  Institute  >  Staff  >  Alexey A. Potekhin

Alexey A. Potekhin
ResearcherID: https://publons.com/researcher/K-3633-2013
Scopus Author ID: https://www.scopus.com/authid/detail.uri?authorId=16414610200
RSCI: https://www.elibrary.ru/author_profile.asp?authorid=89150
ORCID ID: https://orcid.org/0000-0003-4162-5923
Google Scholar: ---
Academic degree: Candidate of Biological Sciences
Academic title: No title
Position: Senior Researcher
E-mail: Alexey.Potekhin@zin.ru
Contact phone: +7 (812) 428-40-00
Educational background: Faculty of Biology, Saint Petersburg State University, 1998
Dissertations: “Study of the macronucleus genome of Paramecium infusoria by pulse electrophoresis in normal and intracranial bacterial infection.” (PhD)
Research interests: Genetics and genomics of ciliates; the species problem and mechanisms of speciation in ciliates; symbioses; diversity and regulation of symbioses between ciliates and bacteria.
Pedagogical activity: Lecturing (Faculty of Biology, Saint Petersburg State University):
  • Virology (faculty course, bachelors, 3rd year);
  • Genetics of Microorganisms (department course, bachelors, 4th year);
  • Molecular Parasitology of Protists (masters, 2nd year);
  • Molecular Parasitology of Bacteria (masters, 2nd year);
  • Presenting Scientific Data and Applying for Grants (seminars, masters, 2nd year).
Scientific projects and grants:
  • GDRI “Paramecium genome dynamics and evolution” (CNRS, 2013-2017). Unit group leader.
  • European Union Horizon 2020 - H2020-MSCA-RISE-2019 “Next Generation Taxonomy: Ciliophora and their bacterial symbionts as a proof of concept” (2019-2024), co-investigator.
  • RFBR 16-04-01195a “Epidemiology for unicellulars: infections, transmission, crosstalk, and consequences for populations in symbioses between ciliates and bacteria” (2016-2018), PI.
  • RFBR 19-04-01256а “The microworlds for microorganisms: prokaryotic consortia associated with ciliates” (2019-2021,) PI.
  • RSF 16-14-10157 “Cohabitants and guests: genomic and metagenomic analysis of symbioses between ciliates and bacteria” (2016-2018), PI.
  • RSF 20-14-00220 “One per all and all for one: regulation of interactions between the partners in symbiotic systems formed by ciliates and bacteria” (2020-2022), PI.
Selected Publications:
  • Catania F., Wurmser F., Potekhin A.A., Przyboś E., Lynch M. Genetic diversity in the Paramecium aurelia species complex. 2009. Mol. Biol. Evol., v. 26(2), p. 421-431. https://doi.org/10.1093/molbev/msn266
  • Nekrasova I., Przyboś E., Rautian M., Potekhin A. Electrophoretic karyotype polymorphism of sibling species of the Paramecium aurelia complex. 2010. J. Eukaryotic Microbiol., v. 57. № 6, p. 494-507. https://doi.org/10.1111/j.1550-7408.2010.00507.x
  • Greczek-Stachura M., Potekhin A., Przyboś E., Rautian M., Skoblo I., Tarcz S. Identification of Paramecium bursaria syngens through molecular markers - comparative analysis of three loci in the nuclear and mitochondrial DNA. 2012. Protist, v. 163, № 4, p. 671-685. https://doi.org/10.1016/j.protis.2011.10.009
  • Tarcz S., Potekhin A., Rautian M., Przyboś E. Variation in ribosomal and mitochondrial DNA sequences demonstrates the existence of intraspecific groups in Paramecium multimicronucleatum (Ciliophora, Oligohymenophorea). 2012. Mol. Phylogenet. Evol., v. 63, № 2, p. 500-509. https://doi.org/10.1016/j.ympev.2012.01.024
  • Tarcz S., Rautian M., Potekhin A., Sawka N., Beliavskaya A., Kiselev A., Nekrasova I., Przyboś E. Paramecium putrinum (Ciliophora, Protozoa): the first insight into the variation of two DNA fragments - molecular support for the existence of syngens. 2014. Mol. Phylogenet. Evol., v. 73, p. 140-145. https://doi.org/10.1016/j.ympev.2014.01.019
  • Singh D.P., Saudemont S., Guglielmi G., Arnaiz O., Goût J.F., Prajer M., Potekhin A., Przybòs E., Aubusson-Fleury A., Bhullar S., Bouhouche K., Lhuillier-Akakpo M., Tanty V., Blugeon C., Alberti A., Labadie K., Aury J.M., Sperling L., Duharcourt S., Meyer E. 2014. Genome-defence small RNAs exapted for epigenetic mating-type inheritance. 2014, Nature, v. 509, № 7501, p. 447-452. https://doi.org/10.1038/nature13318
  • Popenko V.I., Potekhin A.A., Karajan B.P., Skarlato S.O., Leonova O.G. The size of DNA molecules and chromatin organization in the macronucleus of the ciliate Didinium nasutum (Ciliophora). 2015. J. Eukaryotic Microbiol., v. 62, p. 260-264. https://doi.org/10.1111/jeu.12161
  • Castelli M., Lanzoni O., Rossi L., Potekhin A., Schrallhammer M., Petroni G. Evaluation of enrichment protocols for bacterial endosymbionts of ciliates by real-time PCR. 2016. Curr. Microbiol., v. 72, p. 723-732. https://doi.org/10.1007/s00284-016-1006-z
  • Lanzoni O., Fokin S.I., Lebedeva N., Migunova A., Petroni G., Potekhin A. Rare freshwater ciliate Paramecium chlorelligerum Kahl, 1935 and its macronuclear symbiotic bacterium “Candidatus Holospora parva”. 2016. PLoS ONE, 11(12):e0167928. https://doi.org/10.1371/journal.pone.0167928
  • Potekhin A., Schweikert M., Nekrasova I., Anikina A., Vitali V., Schwartz S., Kaltz O., Petroni G., Schrallhammer M. Complex life cycle, broad host range and adaptation strategy of the intranuclear Paramecium symbiont Preeria caryophila comb. nov. 2018. FEMS Microbiol. Ecol., https://doi.org/10.1093/femsec/fiy076
  • Lanzoni O., Sabaneyeva E., Modeo L., Castelli M., Lebedeva N., Verni F., Schrallhammer M., Potekhin A., Petroni G. Diversity and environmental distribution of the cosmopolitan endosymbiont “Candidatus Megaira”. 201., Sci. Reports, 9(1):1179. https://doi.org/10.1038/s41598-018-37629-w
  • Plotnikov A.O., Balkin A.S., Gogoleva N.E., Lanzoni O., Khlopko Yu.A., Cherkasov S.V., Potekhin A.A. High-throughput sequencing of the 16S rRNA gene as a survey to analyze the microbiomes of free-living ciliates Paramecium. 2019. Microbial Ecol. https://doi.org/10.1007/s00248-019-01321-x
  • Castelli M., Sabaneyeva E., Lanzoni O., Lebedeva N., Floriano A.M., Gaiarsa S., Benken K., Modeo L., Bandi C., Potekhin A., Sassera D., Petroni G. Deianiraea, an extracellular bacterium associated with the ciliate Paramecium, suggests an alternative scenario for the evolution of Rickettsiales. 2019. ISME J. https://doi.org/10.1038/s41396-019-0433-9
  • Nekrasova I., Nikitashina V., Bhullar S., Arnaiz O., Singh D.P., Meyer E., Potekhin A. Loss of a fragile chromosome region leads to the screwy phenotype in Paramecium tetraurelia. 2019. Genes (Basel), 10(7), pii: E513. https://doi.org/10.3390/genes10070513
  • Lanzoni O., Plotnikov A., Khlopko Yu., Munz G., Petroni G., Potekhin A. The core microbiome of sessile ciliate Stentor coeruleus is not shaped by the environment. 2019. Sci. Reports, 9(1):11356. https://doi.org/10.1038/s41598-019-47701-8
  • Potekhin A., Mayén-Estrada,R. Paramecium Diversity and a new member of the Paramecium aurelia species complex described from Mexico. 2020. Diversity, 12, 197. https://doi.org/10.3390/d12050197

 

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