Skip to main content
Fig. 3 | BMC Evolutionary Biology

Fig. 3

From: Chromosomal phylogeny of Vampyressine bats (Chiroptera, Phyllostomidae) with description of two new sex chromosome systems

Fig. 3

Sex chromosome evolution in the subfamily Stenodermatinae. a The original XY system found in most mammals. b Fusion of one autosome with X, originating the XX/XY1Y2 system found, for instance, in AOB. c Neo-XY system after the fusion of the free homologue (called Y2) with Y (called Y1), found in UMA and UBI and probably the common ancestor of Vampyressa and Mesophylla. d Fission at centromere of Neo-X, freeing the autosome portion once more, originating the X1X1X2X2/X1X2Y system in VTH. e Fusion of a second autosome to Y of Neo-XY. f The resulting Neo- X1X1X2X2/X1X2Y in MMA

Back to article page