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Special Issue “The Evolutionary Life Cycle of Sex Chromosomes”

Sunday, January 5th, 2020

A issue that is special of (ISSN 2073-4425). This unique problem belongs towards the part “Population and Evolutionary Genetics and Genomics”.

Unique Problem Information

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Sex chromosomes represent a specific element of the genome. They perform a role that is important basal procedures such as for example intercourse dedication, but are additionally usually tangled up in emergent evolutionary phenomena such as for example speciation. Just just just How intercourse chromosomes are created, mature and perish is an important question in modern biology that is evolutionary. Sex chromosomes are considered to evolve from a regular set of autosomes, originating whenever an autosome set acquires a sex-determining function. Exactly exactly How and exactly why this change happens continues to be mostly unknown. Intercourse chromosomes undergo numerous modifications, such as for instance recombination suppression, degeneration by accumulation of repeated DNA and transposons, dosage settlement to balance the gene items of degenerated genes, and gene trafficking to and from other chromosomes. This usually yields a couple of highly-differentiated chromosomes, certainly one of which exhibits the decay that is extensive of late-stage sex chromosomes. Sooner or later, this decrepit chromosome might even be lost, leading to men and women having various amounts of chromosomes. Much stays to be found in regards to the processes that shape sex chromosomes, nevertheless the revolution in genomics, transcriptomics as well as other technologies that are related us to review the development of sex chromosomes in unprecedented information. This matter will deal with questions regarding the lifecycle of intercourse chromosomes across various groups that are organismal. < (more…)