Interesting paper came up in my automated google searches for “phylogenomics”: Transitioning Toward a Universal Species Concept for the Classification of all Organisms | InTechOpen. It is by Jim Staley who has been writing a lot about microbial species concepts in the last few years. In addition to trying to bridge the gap between bacteria/archaea and eukaryotes in terms of species concepts. Not sure how I feel about everything in the paper but it has a really nice history of how species have been defined for bacteria. He breaks down this history into four periods
- Discovery of microorganisms,
- Advent of pure cultures and phenotypic features,
- Introduction of molecular analyses and
- Gene sequencing and genomics.
And goes through a bit of detail on each one. He also discusses what he sees as a need for a universal species concept and even makes some suggestions about how it might be implemented. Definitely worth a read.
Some related posts of mine and or links of potential interest: