Untangling the structural and molecular mechanisms underlying colour and rapid colour change in a lizard, Agama atra.
Agamidae
colour
colour change
genes
transcriptomics
Journal
Molecular ecology
ISSN: 1365-294X
Titre abrégé: Mol Ecol
Pays: England
ID NLM: 9214478
Informations de publication
Date de publication:
05 2021
05 2021
Historique:
revised:
10
03
2021
received:
19
11
2020
accepted:
18
03
2021
pubmed:
28
3
2021
medline:
22
6
2021
entrez:
27
3
2021
Statut:
ppublish
Résumé
With functions as diverse as communication, protection and thermoregulation, coloration is one of the most important traits in lizards. The ability to change colour as a function of varying social and environmental conditions is thus an important innovation. While colour change is present in animals ranging from squids, to fish and reptiles, not much is known about the mechanisms behind it. Traditionally, colour change was attributed to migration of pigments, in particular melanin. More recent work has shown that the changes in nanostructural configuration inside iridophores are able to produce a wide palette of colours. However, the genetic mechanisms underlying colour, and colour change in particular, remain unstudied. Here we use a combination of transcriptomic and microscopic data to show that melanin, iridophores and pteridines are the main colour-producing mechanisms in Agama atra, and provide molecular and structural data suggesting that rapid colour change is achieved via melanin dispersal in combination with iridophore organization. This work demonstrates the power of combining genotypic (gene expression) and phenotypic (microscopy) information for addressing physiological questions, providing a basis for future studies of colour change.
Substances chimiques
Melanins
0
Banques de données
Dryad
['10.5061/dryad.12jm63xwv']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
2262-2284Informations de copyright
© 2021 John Wiley & Sons Ltd.
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