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AZFc deletions and spermatogenic failure: a population-based survey of 20,000 Y chromosomes.

Publication ,  Journal Article
Rozen, SG; Marszalek, JD; Irenze, K; Skaletsky, H; Brown, LG; Oates, RD; Silber, SJ; Ardlie, K; Page, DC
Published in: Am J Hum Genet
November 2, 2012

Deletions involving the Y chromosome's AZFc region are the most common known genetic cause of severe spermatogenic failure (SSF). Six recurrent interstitial deletions affecting the region have been reported, but their population genetics are largely unexplored. We assessed the deletions' prevalence in 20,884 men in five populations and found four of the six deletions (presented here in descending order of prevalence): gr/gr, b2/b3, b1/b3, and b2/b4. One of every 27 men carried one of these four deletions. The 1.6 Mb gr/gr deletion, found in one of every 41 men, almost doubles the risk of SSF and accounts for ∼2% of SSF, although <2% of men with the deletion are affected. The 1.8 Mb b2/b3 deletion, found in one of every 90 men, does not appear to be a risk factor for SSF. The 1.6 Mb b1/b3 deletion, found in one of every 994 men, appears to increase the risk of SSF by a factor of 2.5, although <2% of men with the deletion are affected, and it accounts for only 0.15% of SSF. The 3.5 Mb b2/b4 deletion, found in one of every 2,320 men, increases the risk of SSF 145 times and accounts for ∼6% of SSF; the observed prevalence should approximate the rate at which the deletion arises anew in each generation. We conclude that a single rare variant of major effect (the b2/b4 deletion) and a single common variant of modest effect (the gr/gr deletion) are largely responsible for the AZFc region's contribution to SSF in the population.

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Published In

Am J Hum Genet

DOI

EISSN

1537-6605

Publication Date

November 2, 2012

Volume

91

Issue

5

Start / End Page

890 / 896

Location

United States

Related Subject Headings

  • Vietnam
  • United States
  • Tunisia
  • Prevalence
  • Poland
  • Oligospermia
  • Male
  • India
  • Humans
  • Genetics & Heredity
 

Citation

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Rozen, S. G., Marszalek, J. D., Irenze, K., Skaletsky, H., Brown, L. G., Oates, R. D., … Page, D. C. (2012). AZFc deletions and spermatogenic failure: a population-based survey of 20,000 Y chromosomes. Am J Hum Genet, 91(5), 890–896. https://doi.org/10.1016/j.ajhg.2012.09.003
Rozen, Steven G., Janet D. Marszalek, Kathryn Irenze, Helen Skaletsky, Laura G. Brown, Robert D. Oates, Sherman J. Silber, Kristin Ardlie, and David C. Page. “AZFc deletions and spermatogenic failure: a population-based survey of 20,000 Y chromosomes.Am J Hum Genet 91, no. 5 (November 2, 2012): 890–96. https://doi.org/10.1016/j.ajhg.2012.09.003.
Rozen SG, Marszalek JD, Irenze K, Skaletsky H, Brown LG, Oates RD, et al. AZFc deletions and spermatogenic failure: a population-based survey of 20,000 Y chromosomes. Am J Hum Genet. 2012 Nov 2;91(5):890–6.
Rozen, Steven G., et al. “AZFc deletions and spermatogenic failure: a population-based survey of 20,000 Y chromosomes.Am J Hum Genet, vol. 91, no. 5, Nov. 2012, pp. 890–96. Pubmed, doi:10.1016/j.ajhg.2012.09.003.
Rozen SG, Marszalek JD, Irenze K, Skaletsky H, Brown LG, Oates RD, Silber SJ, Ardlie K, Page DC. AZFc deletions and spermatogenic failure: a population-based survey of 20,000 Y chromosomes. Am J Hum Genet. 2012 Nov 2;91(5):890–896.
Journal cover image

Published In

Am J Hum Genet

DOI

EISSN

1537-6605

Publication Date

November 2, 2012

Volume

91

Issue

5

Start / End Page

890 / 896

Location

United States

Related Subject Headings

  • Vietnam
  • United States
  • Tunisia
  • Prevalence
  • Poland
  • Oligospermia
  • Male
  • India
  • Humans
  • Genetics & Heredity