Figure 1

Phylogenetic hypotheses from various molecular, morphological and behavioral analyses of gamebirds. (a) The traditional classification from Johnsgard (1986); (b) morphological and behavioral data (Dyke et al., 2003); (c) combined data including two mitochondrial genes (CytB, ND2) and four nuclear introns (BFib7, DCoH3, OvoG, and Rhod1) (Kimball and Braun 2008); (d) insertion events of CR1 retrotransposable elements (Kaiser et al., 2007).