Amplification of microsatellite repeat motifs is associated with the evolutionary differentiation and heterochromatinization of sex chromosomes in Sauropsida

The sex chromosomes in Sauropsida (reptiles and birds) have evolved independently many times. They show astonishing diversity in morphology ranging from cryptic to highly differentiated sex chromosomes with male (XX/XY) and female heterogamety (ZZ/ZW). Comparing such diverse sex chromosome systems thus provides unparalleled opportunities to capture… (More)