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QC analyses of SNP array data: Experiences from a large population of dairy sires with 23.8 million data points

  • K R Zenger
  • , M S Khatkar
  • , Bruce Tier
  • , M Hobbs
  • , J A L Cavanagh
  • , J Solkner
  • , R J Hawken
  • , W Barris
  • , H W Raadsma

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The use of a high throughput SNP genotyping platform with 15,380 bovine SNP assays, across 1546 dairy bulls resulted in a data set of approximately 23.8 M SNP data points. Stringent control measures based around low polymorphic content, sample failure, deviation from HWE, low call rate, non-Mendelian inheritance, tri-allelic SNP, and incompatible clustering of data, resulted in removal of 4321 SNPs. The majority (2973) were due to low polymorphic content (MAF<0.01), with the remaining features consistent with assay quality. Despite the need for removal of some SNP, repeatability of SNP call rate was extremely high (>99%) across repeat samples, and between platforms. SNP technology has now matured where comprehensive genome-wide analyses can be conducted in cattle with a high degree of robustness.
Original languageEnglish
Title of host publicationProceedings of the Association for the Advancement of Animal Breeding and Genetics
EditorsAAABG: Association for the Advancement of Animal Breeding, Genetics
Place of PublicationArmidale, Australia
PublisherAssociation for the Advancement of Animal Breeding and Genetics (AAABG)
Pages123-126
Volume17
ISBN (Print)1921208139
Publication statusPublished - 2007
EventAAABG 2007: 17th Conference of the Association for the Advancement of Animal Breeding and Genetics - University of New England, Armidale, Australia
Duration: 23 Sept 200726 Sept 2007

Conference

ConferenceAAABG 2007: 17th Conference of the Association for the Advancement of Animal Breeding and Genetics
CityArmidale, Australia
Period23/09/0726/09/07

Keywords

  • Quantitative Genetics (incl Disease and Trait Mapping Genetics)

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