| QTL Map Information |
|---|
| Chromosome: | 5 |
| QTL Peak Location: | 79 (cM) |
| QTL Span: | 78.20-90.84 (cM)
69.3-80.4 (Mbp) |
 |
Upper, "Suggestive": | n/a |
| Upper, "Significant": | BMS1216 |
| Peak: | |
| Lower, "Significant": | BMS1248 |
| Lower, "Suggestive": | n/a |
| Marker type: | Microsatellites |
| Analysis type: | QTL |
| Model tested: | n/a |
| Test base: | - |
| Threshold significance level: | - |
 |
P_values | <0.10 | | Dominance effect: | n/a |
| Additive effect: | 0.6 |
| Associated Gene: | n/a |
| Cis/Trans acting type: |  |
| Links:
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| Extended information: |
|---|
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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
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