Chickens produce green eggs thanks to genetic engineering

Scientists from the University of Nottingham used genetic engineering to green egg birds. These eggs are not only beautiful but also delicious and cleaner than traditional chicken eggs.

The study was published in PloS ONE, and the scientists created a genetic mutation for the blue egg laying on Mapuche chicken in South America, originating from Araucana chicken in Europe.

The research team used unique genetic resources and accurately located mutations in the blue genome of chicken eggs. A type of antiviral carries the genetic gene in ribonucleic acid (RNA) and replicates itself in host cells via 'reverse transcriptase' , then copies RNA into deoxyribonucleic acid (DNA). Thereby creating new genetic material. The antiviral activates the accumulation of biliverdin blue pigment in eggshell.

The study's lead author, Dr. David Wragg, said: 'A surprise was found to be the only integration between virus antagonists in South America or Europe with Asian chickens. This demonstrates the importance of viruses in shaping species development and diversification. Antiviral plays an important role in the variety of colors and shapes of poultry eggs'.

The research team member Dr Joshua Mwacharo added: 'Not only chickens, we can also make birds lay green eggs'.

Remarkably, in a study conducted independently, Chinese scientists have obtained similar results.