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A partial Capricorn genome scans for identification (QTLS) controlling growth characteristics in commercial goats of Australia.

Document Type : Research Paper

Authors

1 1Department of Animal Science, Faculty of Agriculture, University of Tabriz, Iran

2 Department of Animal Science, Faculty of Agriculture, University of Tabriz, Iran

3 Member of Scientific Board

4 Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Iran

5 Animal Science Research Institute of Iran

Abstract

Nowadays, Incorporation of both phenotypes and genotype information enhanced the accuracy of genetic parameter predictions for growth characteristics in breeding schematics. The purpose of this study was to identify quantitative traits controlling positions (QTLs) associated with live body weight traits and growth characteristics using specific microsatellite markers in the 605 cm distance of goat chromosomes. In this regards, 4 half sib families were selected from large herd pedigree including 112 individual. Investigated records were included: birth, weaning, 6 months weights, average daily gain, calculated Keliber ratio index for two measured periods of birth- weaning age, weaning age- 6 months age. In the molecular study phase, a total of 45 microsatellite markers belong to 5 chromosome numbers (1, 2, 5, 6, and 26) with a pre-condition of the heterozygote pattern for microsatellite marker in each sire genotypes in progenies of heterozygote sires. The key findings of the present study are the identification of two QTLs between BMC1009-RM029 and INRABEN172 markers that are related to birth weight in chromosomes 5 and 26 (p<0.01). Also, after a across familial analysis, a QTL close to the BM1312 marker was detected in relation to the KBR1 ratio on chromosome 1(p<0.05).

Keywords

References
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Research Journal of Livestock Science
Volume 31, Issue 118
June 2018
Pages 125-136
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