University of Guilan Animal Production Research 2252-0872 8 3 2019 11 22 Genome scan of Japanese quail chromosome 5 for detecting QTLs of growth traits Genome scan of Japanese quail chromosome 5 for detecting QTLs of growth traits 87 95 3515 10.22124/ar.2019.10859.1333 FA Kh. Ebrahimi MSc. Graduated in Animal Breeding, Department of Animal Science, Agriculture Faculty, University of Zabol, Zabol, Iran Gh. R. Dashab Associate Professor of Animal Breeding and Genetics, Department of Animal Science, Agriculture Faculty, University of Zabol, Zabol, Iran H. Faraji- Arough Assistant Professor of Animal Breeding and Genetics, Research Center of Special Domestic Animals, University of Zabol, Zabol, Iran A. Maghsoudi Assistant Professor of Animal Breeding, Department of Animal Science and Bioinformatics, Agriculture Faculty, University of Zabol, Zabol, Iran M. Rokouei Associate Professor of Animal Breeding, Department of Animal Science and Bioinformatics, Agriculture Faculty, University of Zabol, Zabol, Iran Journal Article 1970 01 01 The aim of this study was to partial genome scan (chromosome 5) of Japanese quail to detect QTLs affecting growth traits based on a four-generation partial diallele cross design in Special Domestic Animals Research Center of University of Zabol. For this purpose, four strains of Wild (A), A and M of Texas (B), Italian Speckled (C) and Tuxedo (D) Japanese quails were crossed in two-strain reciprocal method and were created the first generation. Grandparents and fourth parents (18 and 36 birds, respectively) and all birds of fourth generation (315 birds) were genotyped for three microsatellite markers on chromosome 5. Also, all birds from hatch to 45 days were weighted at 5-day intervals. The QTL analysis was carried out using a regression-based interval mapping method and additive genetic model using GridQTL software. The results showed three different QTLs for hatch weight, weights at 15 and 20 days of age in 4.65, 16.03 and 15.63 cM, respectively.Therefore, if the adjacent marker information be entered in equation of breeding values estimation, it can lead to improve the reliability of prediction breeding value and finally result in genetic progress. The aim of this study was to partial genome scan (chromosome 5) of Japanese quail to detect QTLs affecting growth traits based on a four-generation partial diallele cross design in Special Domestic Animals Research Center of University of Zabol. For this purpose, four strains of Wild (A), A and M of Texas (B), Italian Speckled (C) and Tuxedo (D) Japanese quails were crossed in two-strain reciprocal method and were created the first generation. Grandparents and fourth parents (18 and 36 birds, respectively) and all birds of fourth generation (315 birds) were genotyped for three microsatellite markers on chromosome 5. Also, all birds from hatch to 45 days were weighted at 5-day intervals. The QTL analysis was carried out using a regression-based interval mapping method and additive genetic model using GridQTL software. The results showed three different QTLs for hatch weight, weights at 15 and 20 days of age in 4.65, 16.03 and 15.63 cM, respectively.Therefore, if the adjacent marker information be entered in equation of breeding values estimation, it can lead to improve the reliability of prediction breeding value and finally result in genetic progress.

https://ar.guilan.ac.ir/article_3515_a597002ce19cf5139c86395dac3b2c23.pdf