Release 56
(Apr 24, 2025)

This linkage-map based data has been obsolete
(see Release notes 51, 52, 53). Information
provided here is only for retrospective online
support of publications that used this data.

QTL 1761 Description:

 Trait Information
Trait name: Offspring number Vertebrate Trait Ontology: Offspring quantity
Trait details: twinning rate Product Trait Ontology: n/a
Symbol: MULTBIR Clinical Measurement Ontology: Number of offspring
 QTL Map Information
Chromosome:5
QTL Peak Location:68 (cM)
QTL Span:66.20-74.20 (cM)
58.6-65.7 (Mbp)
Upper, "Suggestive":n/a
Upper, "Significant":BMS490
Peak:
Lower, "Significant":CSSM22
Lower, "Suggestive":n/a
Marker type:Microsatellites
Analysis type:QTL
Model tested:n/a
Test base:-
Threshold significance level:-
P_values<0.01
Dominance effect:n/a
Additive effect:0.7
Associated Gene:n/a
Cis/Trans acting type:
Links:   Edit  |   Map view

 Extended information:
(none)

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  •  QTL Experiment in Brief
    Animals:The study utilized a granddaughter design: sires and sons were genotyped; granddaughters provided the phenotypes. All animals used in this study were registered Holstein bulls, most from United States and the remaining from Canada.
     Breeds associated:
    n/a
    Design:Over 1.3 million calvings and a threshold model to calculate sires' predicted transmitting ability values were used for twinning rate using data from the National Association of Animal Breeders.
    Analysis:Bovine microsatellite markers were selected based upon their locations on chromosomes 5,7,19, and 23, and estimated hterozygosity. Within half-sib family statistical analysis for all traits was performed.
    Software:QTL Express, Cri-Map, Genescan, and Genotyper
    Notes: 
    Links:Edit

     Reference
    Authors:Cruickshank J, Dentine MR, Berger PJ, Kirkpatrick BW.
    Affiliation:Dairy Science Department, University of Wisconsin-Madison, Madison, WI, USA.
    Title:Evidence for quantitative trait loci affecting twinning rate in North AmericanHolstein cattle.
    Journal:Animal Genetics, 2004, 35(3):206-12.
    Links:  PubMed  |  Abstract   |  List all data   |  Edit  
    User inputs on reference #15147392
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  • Cite this Data:

    Animal QTLdb: QTL1761 was published in 2004, and was curated into QTLdb on 2008-12-11. DBxREF link to this data: https://www.animalgenome.org/QTLdb/q?id=QTL_ID:1761

     

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