Communicated through Mary F. Lyon, specialized study Council, Oxon, uk (gotten concerning review January 30, 1998)
Among the list of mechanisms whereby intercourse is set at pets, chromosomal intercourse dedication can be present a wide selection of remote taxa. Your popular yet not ubiquitous event, not really inside lineages, out of chromosomal intercourse dedication shows that intercourse chromosomes need developed separately many times during the course of animal radiation, still company proof because of this is poor. The absolute most model that is favored this technique is gradual differentiation out of ancestral pairs out of autosomes. Because popular of animals, intercourse chromosomes might have a really ancient origin, and it has still become thought your intercourse chromosomes out of animals and also wild birds might express one most common chromosomal ancestry. 继续阅读“Evolution of sex that is avian starting excellent ancestral set of autosomes”