Extreme heterogeneity in intercourse chromosome differentiation and dosage payment in livebearers Importance Morphologically and chromosomes have actually over repeatedly developed over the tree of life. Nonetheless, the extent of differentiation involving the intercourse chromosomes differs significantly across species. The Y chromosome gene activity decays, leaving genes on the sex chromosomes reduced to a single functional copy in males as sex chromosomes diverge. Mechanisms have actually developed to pay with this lowering of gene dosage. Right right Here, we perform relative analysis of intercourse chromosome systems across poeciliid species and discover variation that is extreme the amount of intercourse chromosome differentiation and Y chromosome degeneration. Also, we find proof for a full situation of chromosome-wide dosage compensation in seafood. Our findings […]