Microsatellite mapping of quantitative trait loci affecting carcass traits on chromosome 1 in half-sib families of Japanese quail (Coturnix japonica)
نویسندگان
چکیده
The objective of this study was to identify the quantitative trait loci (QTL) affecting carcass traits on chromosome 1 in Japanese quail. The populations comprised of 422 progeny in 9 half-sib families. Phenotypic data on carcass weight, carcass parts, and the internal organs were collected on 422 progeny. Nine half-sib families were genotyped for 8 microsatellite markers covering chromosomes 1. Quantitative trait loci effects were estimated using interval mapping regression method Chromosome wide significant QTL were identified for the weight of bursa of fabricius at 24 cM (P < 0.01), uropygial gland at 102 cM (P < 0.05) and breast muscle at 199 cM (P < 0.05) on chromosome 1. The detected QTL segregated in 7 out of the 9 half-sib families, and the size of QTL effect ranged from 0.68 to 25.1 in unit of the trait residual standard deviation. The current study adds significant new information for better understanding of the inheritance of carcass traits in Japanese quail.
منابع مشابه
Microsatellite mapping of quantitative trait loci affecting carcass traits on chromosome 1 in half-sib families of Japanese quail (Coturnix japonica)
The objective of this study was to identify the quantitative trait loci (QTL) affecting carcass traits on chromosome 1 in Japanese quail. The populations comprised of 422 progeny in 9 half-sib families. Phenotypic data on carcass weight, carcass parts, and the internal organs were collected on 422 progeny. Nine half-sib families were genotyped for 8 microsatellite markers covering chromosomes 1...
متن کاملLinkage analysis of microsatellite markers on chromosome 5 in an F2 population of Japanese quail to identify quantitative trait loci affecting carcass traits
An F2 Japanese quail population was developed by crossing two strains (wild and white) to map quantitative trait loci (QTL) for performance and carcass traits. A total of 472 F2 birds were reared and slaughtered at 42 days of age. Performance and carcass traits were measured on all of the F2 individuals. Parental (P0), F1 and F2 individuals were genotyped with 3 microsatellites from quail chrom...
متن کاملQuantitative Trait Loci for some of Behavior and Performance Traits on Chromosome 4 of Japanese Quail
The current study was conducted to identify the quantitative trait locus (QTL) for the body weight at age 1, 7, 14, 21 and 28 days and daily gain at age 0-1, 1-2, 2-3 and 3-4 weeks, slighter carcass weight and tonic immobility in Japanese quail. Two divergently lines of wild and white Japanese quail which maintained in the Animal Science Research Center of the Shahid Bahonar University of Kerma...
متن کاملQuantitative trait loci for body weight and carcass traits in Japanese quail
Body weight (BW) and carcass traits are complex and important economic traits that may benefit from the implementation of MAS. The objective of the current study was to identify QTL associated with BW and carcass traits in an experimental half-sib cross of Japanese quails selected for BW at 4 weeks of age. Body weight and carcass traits were measured in the F2 population. Total F2 individuals a...
متن کاملبررسی جایگاه صفت کمی موثر بر صفات رشد در بلدرچین ژاپنی با استفاده از طرح ناتنی پدری
A paternal half-sib design was implemented to identify QTL on chromosome 2 affecting growth traits in Japanese quail. Using a reciprocal cross between two strains, white (laying) and wild (broiler) of Japanese quail, 34 birds were obtained in F1 generation and 422 offspring related to 9 paternal half-sib families in 5 consecutive hatches were generated. Progeny from 9 paternal half-sib fam...
متن کامل