Extreme heterogeneity in sex chromosome differentiation and dosage settlement in livebearers

Extreme heterogeneity in sex chromosome differentiation and dosage settlement in livebearers

Edited by David M. Hillis, The University of Texas at Austin, Austin, TX, and approved August 6, 2019 (gotten for review April 1, 2019)

Importance

Morphologically and chromosomes have actually over and over repeatedly developed over the tree of life. Nevertheless, the level of differentiation amongst the sex chromosomes differs considerably across types. As intercourse chromosomes diverge, the Y chromosome gene task decays, making genes from the intercourse chromosomes paid down to just one practical copy in men. Mechanisms have actually developed to pay because of this lowering of gene dosage. Right right right Here, we perform relative analysis of intercourse chromosome systems across poeciliid species and unearth extreme variation in the amount of intercourse chromosome differentiation and Y chromosome degeneration. Furthermore, we find proof for a situation of chromosome-wide dosage compensation in seafood. Our findings have actually essential implications for intercourse chromosome development and regulation. Continuar leyendo «Extreme heterogeneity in sex chromosome differentiation and dosage settlement in livebearers»