TRANSITION SETS. “Curiously, outside of mammals and birds, the phylogenetic patterns of these two obviously contrary modes of sex determination indicate many transitions. Many cases have been documented where closely related lineages switch between XY or ZW sex chromosomes, demonstrating that transitions between male and female heterogamety have occurred quite frequently in the evolutionary past of vertebrates.”
http://www.pnas.org/content/112/34/10575.full
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022