Department of Genetics, University of Cambridge, Cambridge CB1 3QA, United Kingdom.
Genetics. 2011 Nov;189(3):1117-20. doi: 10.1534/genetics.111.133157. Epub 2011 Sep 2.
Gene expression in Anopheles gambiae shows a deficiency of testis-expressed genes on the X chromosome associated with an excessive movement of retrogene duplication. We suggest that the degeneration of sex chromosomes in this monandrous species is likely the result of pressures from X inactivation, dosage compensation, and sexual antagonism.
冈比亚按蚊的基因表达显示出 X 染色体上睾丸表达基因的缺乏,这与反转录基因重复的过度运动有关。我们认为,这种单性生殖物种的性染色体退化可能是 X 染色体失活、剂量补偿和性拮抗压力的结果。