Additional file 5.
Ultrametric tree obtained with Beast using the cox1 sequence only, including the Sardinian species (red clade). Black circles, well supported nodes (see Fig. 1, Additional file 3) constrained to be monophyletic. Numbers inside nodes, age estimate (MY) using the separation of the Sardinian species with a prior age of 33MY (see text).
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Ribera et al. BMC Evolutionary Biology 2010 10:29 doi:10.1186/1471-2148-10-29