Fig. 2
From: Evolution of bird sex chromosomes: a cytogenomic approach in Palaeognathae species
Female metaphase plates of the emu highlighting the chromosomal location of 23 DnoSatDNAs. Their family names are indicated in the lower right corner, in green (Atto488-dUTP labeled) or red (Atto550-dUTP labeled). While the W chromosome was appropriately identified by a sequential hybridization with the microsatellite (GA)n, the Z chromosome could not be properly identified based on its morphology. Bar = 10 μm