Unequivocal determination of sire allele origin for multiallelic microsatellites when only the sire and progeny are genotyped

M. Ron, M. Band, A. Wyler, J. I. Weller

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of a segregating economic trait locus (ETL) can be detected with the aid of a linked genetic marker, if specific alleles of each locus are in association among the individuals genotyped for the genetic marker. For dairy cattle this can be achieved by application of the ‘granddaughter design’. If only the sires and their sons are genotyped for the genetic markers, then the allele origin of sons having the same genotypes as their sires cannot be determined. Seven sires and 101 sons were genotyped for five microsatellites. The mean frequency of heterozygous sires was 77%. The mean number of alleles per locus was 8.2. Frequency of informative sons per locus ranged from 60% to 80% with a mean of 72%. With highly polymorphic microsatellites, at least 60% more grandsire families can be included in the analysis, and the number of sons assayed can be reduced by 40%, as compared to diallelic markers.

Original languageEnglish (US)
Pages (from-to)171-176
Number of pages6
JournalAnimal genetics
Volume24
Issue number3
DOIs
StatePublished - Jun 1993
Externally publishedYes

Keywords

  • DNA‐microsatellite
  • allele origin
  • genetic markers
  • quantitative trait loci

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Genetics

Fingerprint

Dive into the research topics of 'Unequivocal determination of sire allele origin for multiallelic microsatellites when only the sire and progeny are genotyped'. Together they form a unique fingerprint.

Cite this