X chromosomes, retrogenes and their role in male reproduction

Trends Endocrinol Metab. 2004 Mar;15(2):79-83. doi: 10.1016/j.tem.2004.01.007.

Abstract

Retrogenes originate from their progenitor genes by retroposition. Several retrogenes reported in recent studies are autosomal, originating from X-linked progenitor genes, and have evolved a testis-specific expression pattern. During male meiosis, sex chromosomes are segregated into a so-called 'XY' body and are silenced transcriptionally. It has been widely hypothesized that the silencing of the X chromosome during male meiosis is the driving force behind the retroposition of X-linked genes to autosomes during evolution. With the advent of sequenced genomes of many species, many retrogenes can be identified and characterized. The testis-specific retrogenes might be associated with human male infertility. My goal here is to integrate recent findings, highlight controversies in the field and identify areas for further study.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Biological Evolution
  • Humans
  • Infertility, Male / genetics
  • Male
  • Meiosis / genetics
  • Mice
  • Reproduction / genetics*
  • Spermatogenesis / genetics
  • Transcription, Genetic / genetics
  • X Chromosome / genetics*