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Journal of Assisted Reproduction and Genetics

, Volume 31, Issue 8, pp 1065–1071 | Cite as

Lack of association of KATNAL1 gene sequence variants and azoospermia in humans

  • Anastasia M. Fedick
  • Kyle Eckert
  • Katharine Thompson
  • Eric J. Forman
  • Batsal Devkota
  • Nathan R. Treff
  • Deanne Taylor
  • Richard T. ScottJr
Genetics

Abstract

Purpose

A recent experiment indicated that a loss of function mutation in the murine Katnal1 gene resulted in male factor infertility due to premature exfoliation of spermatids. This study investigated the relevance of this gene to infertility in humans.

Methods

Multiple methods of genetic analysis were employed to investigate whether mutations in human KATNAL1 have a causative role in male infertility. This was a genetic association study, which included DNA samples from 105 men with non-obstructive azoospermia (NOA) and 242 anonymous sperm donor controls. 28 commercially available TaqMan SNP assays were used to haplotype samples from both groups and genetically tag regions of interest across the entire gene. AmpliSeq primers were then designed for identified regions so that targeted next-generation sequencing (NGS) could be used to identify causative variants.

Results

Four SNPs in the 3’UTR demonstrated a putative association with NOA. The AmpliSeq primers designed for the 3’UTR provided 83 % coverage of the 7,202 basepairs within the regions of interest. Variant sites were analyzed against genetic models to identify sequence polymorphisms which associated with NOA. No variants met standard criteria for significance when tested between the groups.

Conclusions

This study suggests a lack of association of KATNAL1 gene sequence variants and azoospermia in humans.

Keywords

KATNAL1 Azoospermia Genetic association Next generation sequencing Tagging SNP 

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Anastasia M. Fedick
    • 1
    • 2
  • Kyle Eckert
    • 2
  • Katharine Thompson
    • 2
  • Eric J. Forman
    • 2
    • 3
  • Batsal Devkota
    • 2
  • Nathan R. Treff
    • 1
    • 2
    • 3
  • Deanne Taylor
    • 1
    • 2
    • 3
  • Richard T. ScottJr
    • 1
    • 2
    • 3
  1. 1.Department of Microbiology and Molecular GeneticsUMDNJ-Robert Wood Johnson Medical SchoolPiscatawayUSA
  2. 2.Reproductive Medicine Associates of New JerseyBasking RidgeUSA
  3. 3.Department of Obstetrics, Gynecology, and Reproductive SciencesRutgers Robert-Wood Johnson Medical SchoolNew BrunswickUSA

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