A unique problem of Genes (ISSN 2073-4425). This unique problem belongs towards the section “Population and Evolutionary Genetics and Genomics”.
Unique Problem Information
Intercourse chromosomes represent a component that is specialized of genome. They perform a role that is important basal procedures such as for instance sex dedication, but are additionally frequently associated with emergent evolutionary phenomena such as for instance speciation. Exactly just How intercourse chromosomes are created, mature and perish is an important concern in modern evolutionary biology. Intercourse chromosomes are considered to evolve from a typical set of autosomes, originating when an autosome set acquires a function that is sex-determining. Exactly exactly How and just why this transition occurs continues to be mainly unknown. Intercourse chromosomes undergo numerous modifications, such as for example recombination suppression, degeneration by accumulation of repeated DNA and transposons, dosage payment to balance the gene services and products of degenerated genes, and gene trafficking to and off their chromosomes. This frequently yields a set of highly-differentiated chromosomes, certainly one of which exhibits the decay that is extensive of late-stage intercourse chromosomes. Fundamentally, this decrepit chromosome might even be lost, leading to women and men having various variety of chromosomes. Much stays to be found concerning the processes that shape sex chromosomes, however the revolution in genomics, transcriptomics as well as other technologies that are related us to examine the development of intercourse chromosomes in unprecedented information. This problem will address questions regarding the lifecycle of intercourse chromosomes across various groups that are organismal. < 继续阅读“Special Issue “The Evolutionary Life Cycle of Sex Chromosomes””