I know that species have been classified on basis of reproduction , DNA similarity , niche, etc.
Has there been a classification based on locus of genes ? What are the drawbacks/shortcomings of classifying this way ?
Isn't it simple to classify on this basis as - a species can have variation at a locus but the position of that locus with respect to a chromosome is fixed in every individual of that species. This fact can eliminate the subjective criteria of DNA similarity.
But I think this isn't valid for bacteria as there is so much recombination going on.