TY - JOUR
T1 - Genomic origins of insect sex chromosomes
AU - Blackmon, Heath
AU - Demuth, Jeffery P.
PY - 2015/2/1
Y1 - 2015/2/1
N2 - Recent efforts to catalog the diversity of sex chromosome systems coupled with genome sequencing projects are adding a new level of resolution to our understanding of insect sex chromosome origins. Y-chromosome degeneration makes sequencing difficult and may erase homology so rapidly that their origins will often remain enigmatic. X-chromosome origins are better understood, but thus far prove to be remarkably labile, often lacking homology even among close relatives. Furthermore, evidence now suggests that differentiated X or Y-chromosomes may both revert to autosomal inheritance. Data for ZW systems is scarcer, but W and Y-chromosomes seem to share many characteristics. Limited evidence suggests that Z-chromosome homology is more conserved than X counterparts, but broader sampling of both sex chromosome systems is needed.
AB - Recent efforts to catalog the diversity of sex chromosome systems coupled with genome sequencing projects are adding a new level of resolution to our understanding of insect sex chromosome origins. Y-chromosome degeneration makes sequencing difficult and may erase homology so rapidly that their origins will often remain enigmatic. X-chromosome origins are better understood, but thus far prove to be remarkably labile, often lacking homology even among close relatives. Furthermore, evidence now suggests that differentiated X or Y-chromosomes may both revert to autosomal inheritance. Data for ZW systems is scarcer, but W and Y-chromosomes seem to share many characteristics. Limited evidence suggests that Z-chromosome homology is more conserved than X counterparts, but broader sampling of both sex chromosome systems is needed.
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U2 - 10.1016/j.cois.2014.12.003
DO - 10.1016/j.cois.2014.12.003
M3 - Review article
AN - SCOPUS:84939984988
VL - 7
SP - 45
EP - 50
JO - Current Opinion in Insect Science
JF - Current Opinion in Insect Science
SN - 2214-5745
M1 - 73
ER -