A unique problem of Genes (ISSN 2073-4425). This issue that is special to the area “Population and Evolutionary Genetics and Genomics”.
Unique Problem Information
Sex chromosomes represent a specific element of the genome. They play a role that is important basal procedures such as for instance intercourse dedication, but they are additionally frequently tangled up in emergent evolutionary phenomena such as for instance speciation. exactly exactly How sex chromosomes are created, mature and perish is a significant concern in modern evolutionary biology. Intercourse chromosomes are considered to evolve from a typical couple of autosomes, originating whenever an autosome set acquires a sex-determining function. just How and just why this change happens 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 substantial decay characteristic of late-stage intercourse chromosomes. Sooner or later, this decrepit chromosome could even be lost, causing men and women having various amounts of chromosomes. Much stays to be found in regards to the processes that shape sex chromosomes, however the revolution in genomics, transcriptomics along with other relevant technologies allows us to review the development of intercourse chromosomes in unprecedented information. This matter will deal with questions regarding the lifecycle of intercourse chromosomes across various groups that are organismal. < Sigue leyendo