Morphologically and chromosomes have actually over and over developed throughout the tree of life. Nevertheless, the degree of differentiation between your intercourse chromosomes differs significantly across types. As intercourse chromosomes diverge, the Y chromosome gene task decays, making genes regarding the intercourse chromosomes paid off to just one practical content in men. Mechanisms have actually developed to pay because of this decrease in gene dosage. Right Here, we perform relative analysis of intercourse chromosome systems across poeciliid species and discover extreme variation in the amount of intercourse chromosome differentiation and Y chromosome degeneration. Also, we find proof for the full situation of chromosome-wide dosage compensation in fish. Our findings have actually essential implications for intercourse chromosome development and legislation.
As soon as recombination is halted amongst the X and Y chromosomes, sex chromosomes commence to differentiate and change to heteromorphism. „Extreme heterogeneity in intercourse chromosome differentiation and dosage settlement in livebearers“ weiterlesen