Genotype-phenotype heterogeneity of bacterial colonies

Understanding the genotype to phenotype connection is one of the key open questions in biology.
✉ olga.bochkareva(at)univie.ac.at
» Personal Website
» u:cris
» u:find

I’m working on the intersection of comparative genomics, algorithmic biology, and evolutionary biology to build a deep understanding of bacterial genome organization and the molecular mechanisms providing complex dynamic genotype-phenotype connections. How many genotypes are present simultaneously in a pure bacterial colony? What is responsible for the rates of genotype switching in a one cell line? What are the limitations of the classic model ‘one bacterial colony - one genome’ which is still a basis of genome assemblers? To answer these fundamental question, I established the “Bacterial genome instability’ research group. Under the confines of a single laboratory we develop computational methods and set-up experimental assays of engineered cultures to study complex genetic mechanisms leading to bacterial adaptation to dynamic environments characterized by multiple pressures: fluctuating nutrient availability, phages, host immune system etc.

2022 ESPRIT Programme (“Early Stage Programme: Research, Innovation and Training”), funding from Austrian Science Fund (FWF), total amount – 294.015€
2019 ISTplus postdoctoral fellowship, funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 754411.
Jain K, Hauschild R, Bochkareva OO, Roemhild R, Tkačik G, Guet CC. Pulsatile basal gene expression as a fitness determinant in bacteria. Proceedings of the National Academy of Sciences of the United States of America. 2025 Apr 7;122(15):e2413709122. doi: 10.1073/pnas.2413709122
Yurtseven A, Buyanova S, Agrawal AA, Bochkareva O, Kalinina O. Machine learning and phylogenetic analysis allow for predicting antibiotic resistance in M. tuberculosis. BMC Microbiology. 2023 Dec 20;23(1):404. Epub 2023 Sept. doi: 10.1186/s12866-023-03147-7
Vostokova E, Dranenko N, Gelfand MS, Bochkareva O. Genome rearrangements drive evolution of ANK genes in Wolbachia. bioRxiv : the preprint server for biology. 2023 Oct 27. doi: 10.1101/2023.10.25.563763