Speciation Features of Ferdinandcohnia quinoae sp. nov to Adapt to the Plant Host

0585078 - MBÚ 2025 RIV US eng J - Journal Article
Saati-Santamaria, Zaki - Flores-Felix, J. D. - Igual, J. M. - Velazquez, E. - Garcia-Fraile, P. - Martinez-Molina, E.
Speciation Features of Ferdinandcohnia quinoae sp. nov to Adapt to the Plant Host.
Journal of Molecular Evolution. Roč. 92, č. 2 (2024), s. 169-180. ISSN 0022-2844. E-ISSN 1432-1432
Institutional support: RVO:61388971
Keywords : proposed minimal standards * genome sequence * quality * Speciation * Ferdinandcohnia quinoae * Quinoa * Adaptation * Comparative genomics * Microbial ecology
OECD category: Microbiology
Impact factor: 3.9, year: 2022
Method of publishing: Open access
https://link.springer.com/article/10.1007/s00239-024-10164-1

The bacterial strain SECRCQ15(T) was isolated from seeds of Chenopodium quinoa in Spain. Phylogenetic, chemotaxonomic, and phenotypic analyses, as well as genome similarity indices, support the classification of the strain into a novel species of the genus Ferdinandcohnia, for which we propose the name Ferdinandcohnia quinoae sp. nov. To dig deep into the speciation features of the strain SECRCQ15(T), we performed a comparative genomic analysis of the genome of this strain and those of the type strains of species from the genus Ferdinandcohnia. We found several genes related with plant growth-promoting mechanisms within the SECRCQ15(T) genome. We also found that singletons of F. quinoae SECRCQ15(T) are mainly related to the use of carbohydrates, which is a common trait of plant-associated bacteria. To further reveal speciation events in this strain, we revealed genes undergoing diversifying selection (e.g., genes encoding ribosomal proteins) and functions likely lost due to pseudogenization. Also, we found that this novel species contains 138 plant-associated gene-cluster functions that are unique within the genus Ferdinandcohnia. These features may explain both the ecological and taxonomical differentiation of this new taxon.
Permanent Link: https://hdl.handle.net/11104/0353071