Posted by:
PaulJH
at Mon Sep 6 00:24:26 2010 [ Email Message ] [ Show All Posts by PaulJH ]
Is there any reason to think the Pituophis have such a close, old world relative?
Looking the other direction, what about other American groups? Has there been any convincing work showing how Pituophis relates to Arizona, Pantherophis, Bogertophis, Lampropeltis, Rhynocheilus, etc.?
Best I could find is this 2002 paper by Utiger, Helfenberger, Schätti, Schmidt, Ruf, and Ziswiler (PDF) suggesting relationships based on two mitochondrial genes.
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