I downloaded all the NCBI taxonomy dumps from the public FTP, and I'm trying to assign the genus to a list of taxon_ids that I got from blasting.
The problem is that some taxon_ids are species, others are subspecies, and others are "no rank". Also, the parent of a species is usually a genus, but it can also be a "subspecies group", or a "species group".
It seems like there should be a tool/approach to do this easily, but I haven't been able to find it. Any ideas?