The Role of Two Tyrosinase-Like Glycoenzymes in Defining the Final Hue of Parrot Plumage.

ABSTRACT: Recent advances in avian melanogenesis have pinpointed multiple genetic loci associated with color polymorphisms, predominantly in the plumage of chickens, quails, and pigeons. However, the genetic basis of melaninization in parrot plumage remains elusive. Previously, we showed that mutations in the melanosomal ion-transporter SLC45A2 lead to a complete loss of blue structural color in green parrot feathers, leaving only yellow psittacofulvin. Yet, several color morphs involving partial or complete melanin reduction are common in captive-bred parrots that have not been studied. To bridge this gap, we investigated two new color morphs of parrot plumage: non-sex-linked recessive lutino (NSL), which entirely inhibits blue structural coloration, and the sex-linked recessive cinnamon, which red

SUBMITTER: Ghosh Roy S 

PROVIDER: S-EPMC11976374 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature