Abstract:
:Qualitative and quantitative defects in human germ cell production that result in infertility are common and determined at least in part by genetic factors [Matzuk and Lamb, Nat Cell Biol 4(Suppl):s41-s49, 2002]. Yet, very few genes that are associated with germ cell defects in humans have been identified. In this study, we examined whether variants of the Deleted in AZoospermia-Like (DAZL) gene are associated with measures of germ cell production in three distinct populations of men and women. We identified 95 sequence variants in DAZL and further analyzed twelve single nucleotide polymorphisms (SNPs) that were present across ethnicities. We found that seven of the twelve SNPs were associated with at least one of the parameters studied (age at premature ovarian failure or menopause, total sperm count, or total motile sperm count). Surprisingly, many alleles exhibited opposing effects in men and women, which may be a result of different genetic requirements in male and female germ cells. Single SNP and haplotype analysis suggested that SNPs in the DAZL gene may act jointly to affect common reproductive characteristics in the human population.
journal_name
Hum Genetjournal_title
Human geneticsauthors
Tung JY,Rosen MP,Nelson LM,Turek PJ,Witte JS,Cramer DW,Cedars MI,Pera RAdoi
10.1007/s00439-005-0098-5keywords:
subject
Has Abstractpub_date
2006-02-01 00:00:00pages
730-40issue
6eissn
0340-6717issn
1432-1203journal_volume
118pub_type
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