ArticleBMC genomics2024
Transcriptome analysis of sexual dimorphism in dorsal down coloration in goslings.
Article in BMC genomics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Sex-Linked Dilution Colour in the European Domestic Goose Indicated To Be a 1-Bp Deletion in the Melan-A Gene.Animal genetics · 2026Article
- Goslings with a reduced quality score can be reared as effectively as those with a full quality score in a semi-intensive production system.Poultry science · 2026Article
- Potential Genetic Markers Associated with Coloration in Duck: A Review.International journal of molecular sciences · 2025Review
- Melanin and Neurotransmitter Signalling Genes Are Differentially Co-Expressed in Growing Feathers of White and Rufous Barn Owls.Pigment cell & melanoma research · 2025Article
- Genetic and metabolic insights into sexual dimorphism in the flexor carpi radialis of Asiatic toads (Bufo gargarizans) associated with amplexus behavior.BMC genomics · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
backgroundIn day-old Hungarian white goose goslings, there is a noticeable difference in dorsal down coloration between males and females, with females having darker dorsal plumage and males having lighter plumage. The ability to autosex day-old goslings based on their dorsal down coloration is important for managing them efficiently and planning their nutrition in the poultry industry. The aim of this study was to determine the biological and genetic factors underlying this difference in dorsal down colorationthrough histological analysis, biochemical assays, transcriptomic profiling, and q‒PCR analysis.
resultsTissue analysis and biochemical assays revealed that compared with males, 17-day-old embryos and day-old goslings of female geese exhibited a greater density of melanin-containing feather follicles and a greater melanin concentration in these follicles during development. Both female and male goslings had lower melanin concentrations in their dorsal skin compared to 17-day-old embryos. Transcriptome analysis identified a set of differentially expressed genes (DEGs) (MC1R, TYR, TYRP1, DCT and MITF) associated with melanogenesis pathways that were downregulated or silenced specifically in the dorsal skin of day-old goslings compared to 17-day-old embryos, affecting melanin synthesis in feather follicles. Additionally, two key genes (MC1R and MITF) associated with feather coloration showed differences between males and females, with females having higher expression levels correlated with increased melanin synthesis and darker plumage.
conclusionThe expression of multiple melanogenesis genes determines melanin synthesis in goose feather follicles. The dorsal down coloration of day-old Hungarian white goose goslings shows sexual dimorphism, likely due to differences in the expression of the MC1R and MITF genes between males and females. These results could help us better understand why male and female goslings exhibit different plumage patterns.
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