ArticleBMC genomics2023
Identification of the genetic basis of the duck growth rate in multiple growth stages using genome-wide association analysis.
Article in BMC genomics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 38 citations in OpenAlex.
- Genetic variants associated with reduced body size in indigenous chickens of Eritrea: A genome-wide association study.Poultry science · 2026Article
- Development and Characterization of a Single Nucleotide Polymorphism Genotyping Panel for Duck Populations.Animals : an open access journal from MDPI · 2026Article
- The molecular basis underlying the differential development of immune organs between Huaifu and Cherry Valley ducks during early growth.BMC genomics · 2026Article
- Genome-wide association studies of body size traits in Tibetan sheep.BMC genomics · 2024Article
- Cis-eQTLs in seven duck tissues identify novel candidate genes for growth and carcass traits.BMC genomics · 2024Article
- Genetic parameters and genomic prediction of growth and breast morphological traits in a crossbreed duck population.Evolutionary applications · 2024Article
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15 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe genetic locus responsible for duck body size has been fully explained before, but the growth trait-related genetic basis is still waiting to be explored. For example, the genetic site related to growth rate, an important economic trait affecting marketing weight and feeding cost, is still unclear. Here, we performed genome wide association study (GWAS) to identify growth rate-associated genes and mutations.
resultIn the current study, the body weight data of 358 ducks were recorded every 10 days from hatching to 120 days of age. According to the growth curve, we evaluated the relative and absolute growth rates (RGR and AGR) of 5 stages during the early rapid growth period. GWAS results for RGRs identified 31 significant SNPs on autosomes, and these SNPs were annotated by 24 protein-coding genes. Fourteen autosomal SNPs were significantly associated with AGRs. In addition, 4 shared significant SNPs were identified as having an association with both AGR and RGR, which were Chr2: 11483045 C>T, Chr2: 13750217 G>A, Chr2: 42508231 G>A and Chr2: 43644612 C>T. Among them, Chr2: 11483045 C>T, Chr2: 42508231 G>A, and Chr2: 43644612 C>T were annotated by ASAP1, LYN and CABYR, respectively. ASAP1 and LYN have already been proven to play roles in the growth and development of other species. In addition, we genotyped every duck using the most significant SNP (Chr2: 42508231 G>A) and compared the growth rate difference among each genotype population. The results showed that the growth rates of individuals carrying the Chr2: 42508231 A allele were significantly lower than those without this allele. Moreover, the results of the Mendelian randomization (MR) analysis supported the idea that the growth rate and birth weight had a causal effect on the adult body weight, with the growth rate having a greater effect size.
conclusionIn this study, 41 SNPs significantly related to growth rate were identified. In addition, we considered that the ASAP1 and LYN genes are essential candidate genes affecting the duck growth rate. The growth rate also showed the potential to be used as a reliable predictor of adult weight, providing a theoretical reference for preselection.
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