气候变化领域集成服务门户(CCPortal): Environmental gradients predict the ratio of environmentally acquired carotenoids to self-synthesised pteridine pigments

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DOI	10.1111/ele.13850
	Environmental gradients predict the ratio of environmentally acquired carotenoids to self-synthesised pteridine pigments
	Stuart-Fox D.; Rankin K.J.; Lutz A.; Elliott A.; Hugall A.F.; McLean C.A.; Medina I.
发表日期	2021
ISSN	1461023X
英文摘要	Carotenoids are important pigments producing integument colouration; however, their dietary availability may be limited in some environments. Many species produce yellow to red hues using a combination of carotenoids and self-synthesised pteridine pigments. A compelling hypothesis is that pteridines replace carotenoids in environments where carotenoid availability is limited. To test this hypothesis, we quantified concentrations of five carotenoid and six pteridine pigments in multiple skin colours and individuals from 27 species of agamid lizards. We show that environmental gradients predict the ratio of carotenoids to pteridines; carotenoid concentrations are lower and pteridine concentrations higher in arid environments with low vegetation productivity. Both carotenoid and pteridine pigments were present in all species, but only pteridine concentrations explained colour variation among species and there were no correlations between carotenoid and pteridine pigments with a similar hue. These results suggest that in arid environments, where carotenoids are likely limited, species may compensate by synthesising more pteridines but do not necessarily replace carotenoids with pteridines of similar hue. © 2021 John Wiley & Sons Ltd.
关键词	animal colouration comparative analysis habitat productivity liquid chromatography-mass spectrometry signalling
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204497
作者单位	School of BioSciences, The University of Melbourne, Parkville, VIC, Australia; Metabolomics Australia, The University of Melbourne, Parkville, VIC, Australia; Sciences Department, Museums Victoria, Carlton Gardens, Melbourne, VIC, Australia; Department of Microbiology & Immunology, The University of Melbourne, Parkville, VIC 3010, Australia
推荐引用方式 GB/T 7714	Stuart-Fox D.,Rankin K.J.,Lutz A.,et al. Environmental gradients predict the ratio of environmentally acquired carotenoids to self-synthesised pteridine pigments[J],2021.
APA	Stuart-Fox D..,Rankin K.J..,Lutz A..,Elliott A..,Hugall A.F..,...&Medina I..(2021).Environmental gradients predict the ratio of environmentally acquired carotenoids to self-synthesised pteridine pigments.Ecology Letters.
MLA	Stuart-Fox D.,et al."Environmental gradients predict the ratio of environmentally acquired carotenoids to self-synthesised pteridine pigments".Ecology Letters (2021).