The male-specific region of the human Y chromosome is a mosaic of discrete sequence classes

  • Helen Skaletsky
  • , Tomoko Kuroda-Kawaguchl
  • , Patrick J. Minx
  • , Holland S. Cordum
  • , La Deana Hlllier
  • , Laura G. Brown
  • , Sjoerd Repplng
  • , Tatyana Pyntikova
  • , Johar All
  • , Tamberlyn Blerl
  • , Asif Chinwalla
  • , Andrew Delehaunty
  • , Hui Du
  • , Glnger Fewell
  • , Lucinda Fulton
  • , Robert Fulton
  • , Tina Graves
  • , Shun Fang Hou
  • , Phllip Latrielle
  • , Shawn Leonard
  • Elaine Mardis, Rachel Maupin, John McPherson, Tracie Miner, Wllliam Nash, Christine Nguyen, Philip Ozersky, Kymberlle Pepin, Susan Rock, Tracy Rohlfing, Kelsi Scott, Brian Schultz, Cindy Strong, Aye Tin-Wollam, Shlaw Pyng Yang, Robert H. Waterston, Richard K. Wllson, Steve Rozen, David C. Page

Research output: Contribution to journalArticlepeer-review

1781 Scopus citations

Abstract

The male-specific region of the Y chromosome, the MSY, differentiates the sexes and comprises 95% of the chromosome's length. Here, we report that the MSY is a mosaic of heterochromatic sequences and three classes of euchromatic sequences: X-transposed, X-degenerate and ampliconic. These classes contain all 156 known transcription units, which include 78 protein-coding genes that collectively encode 27 distinct proteins. The X-transposed sequences exhibit 99% identity to the X chromosome. The X-degenerate sequences are remnants of ancient autosomes from which the modern X and Y chromosomes evolved. The ampliconic class includes large regions (about 30% of the MSY euchromatin) where sequence pairs show greater than 99.9% identity, which is maintained by frequent gene conversion (non-reciprocal transfer). The most prominent features here are eight massive palindromes, at least six of which contain testis genes.

Original languageEnglish
Pages (from-to)825-837
Number of pages13
JournalNature
Volume423
Issue number6942
DOIs
StatePublished - Jun 19 2003

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