Archive for July 2nd, 2010

July 2, 2010

How many monotypic genera?

During all the recent discussion around Neandertals and modern humans, it’s often pointed out that Homo sapiens is the sole extant representative of the genus Homo. I began to wonder “how unusual is this?” in a FriendFeed comment thread. What resources exist that could help us to answer this question?

Genera that contain only one species are termed monotypic. Wikipedia even has a category page for this topic but their lists are limited, since Wikipedia is not a comprehensive taxonomy resource.

Taxonomy is not my specialty but once in a while, I enjoy challenging myself with unfamiliar resources and data types. I figured initially that we could get some way towards an answer using BioSQL and the NCBI taxonomy database. As it turned out I was completely wrong, but it was an interesting educational exercise. I turned instead to a “real” taxonomy resource, the Integrated Taxonomic Information System, or ITIS.
Read the rest…

Follow

Get every new post delivered to your Inbox.

Join 1,340 other followers