Figure 2
From: Polytene chromosomes as indicators of phylogeny in several species groups of Drosophila
Cladograms showing the total evidence hypotheses for combined analyses of DNA sequences and chromosomes. a) the melanogaster species group; b) the virilis species group; c) the picture wing species group and d) the repleta species group. The numbers above nodes indicates the bootstrap value and the number below indicates the Bremer index. < indicates a bootstrap value less than 50%.