AI Insight
A new international study led by researchers from Leipzig University has identified that a single gene is responsible for the wide variety of plumage colors observed in domestic chickens, ranging from white and black to golden brown. This discovery demonstrates how one gene can produce an entire spectrum of visible traits, providing insight into how genetic diversity and physical characteristics can evolve rapidly over relatively short timeframes. The research offers a clear example of the mechanisms underlying trait variation in domesticated animals.
Why it matters
This finding enhances our understanding of how genetic changes translate into physical diversity in livestock species, which has implications for selective breeding programs and conservation of genetic variation in agricultural animals. The research also contributes to broader evolutionary biology by illustrating how significant phenotypic diversity can arise from changes in a single genetic element.
From snow white and jet black to golden brown, domestic chickens display a wider range of plumage colors than almost any other livestock species. A new international study, with researchers from Leipzig University playing a key role, explains why: A single gene is capable of producing this full spectrum. The study provides an example of how genetic diversity and visible traits can emerge within a short evolutionary period. The findings have now been published in the Proceedings of the National Academy of Sciences.
Source: Why chickens come in so many colors, and what one gene reveals about evolution