Скачать или смотреть Genetic mutations cause the diversity of parrot feather colors.

The pink cockatoo in the first video is the color of normal feathers, with gray wings. In later videos, the parrot's wings mutate to white. The parrot genome contains a series of genes that control color expression, and mutations in these genes lead to changes in the way color is expressed. For example, some mutations can cause parrots to take on rare red, yellow, or blue plumage ‌. In addition, parrots often have multiple alleles in their genome. ‌ The genetic mechanisms of parrot feather color include monogenic inheritance, polygenic inheritance and gene regulation ‌. Monogenic inheritance means that certain color variations are caused by mutations in a single gene. Polygenic inheritance involves the interaction of multiple genes, which may result in new ways of expressing colors ‌. Gene regulatory elements also influence the production of color in parrot feathers by controlling the level and timing of gene expression.