当前位置：
X-MOL 学术
›
Ecol. Lett.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Environmental gradients predict the ratio of environmentally acquired carotenoids to self-synthesised pteridine pigments
Ecology Letters ( IF 7.6 ) Pub Date : 2021-08-04 , DOI: 10.1111/ele.13850 Devi Stuart-Fox 1 , Katrina J Rankin 1 , Adrian Lutz 2 , Adam Elliott 1 , Andrew F Hugall 3 , Claire A McLean 1, 3 , Iliana Medina 1
Ecology Letters ( IF 7.6 ) Pub Date : 2021-08-04 , DOI: 10.1111/ele.13850 Devi Stuart-Fox 1 , Katrina J Rankin 1 , Adrian Lutz 2 , Adam Elliott 1 , Andrew F Hugall 3 , Claire A McLean 1, 3 , Iliana Medina 1
Affiliation
|
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.
中文翻译：
环境梯度预测环境获得的类胡萝卜素与自合成蝶啶色素的比例
类胡萝卜素是产生珠被着色的重要色素；然而，在某些环境中，它们的膳食供应可能有限。许多物种使用类胡萝卜素和自合成蝶啶色素的组合产生黄色到红色的色调。一个令人信服的假设是，在类胡萝卜素可用性有限的环境中，蝶啶可以替代类胡萝卜素。为了验证这一假设，我们量化了来自 27 种蜥蜴蜥蜴的多种肤色和个体中五种类胡萝卜素和六种蝶呤色素的浓度。我们表明环境梯度可以预测类胡萝卜素与蝶啶的比例；在植被生产力低的干旱环境中，类胡萝卜素浓度较低，蝶啶浓度较高。类胡萝卜素和蝶啶色素都存在于所有物种中，但只有蝶啶浓度可以解释物种之间的颜色变化，类胡萝卜素和具有相似色调的蝶啶色素之间没有相关性。这些结果表明，在类胡萝卜素可能有限的干旱环境中，物种可以通过合成更多的蝶啶来补偿，但不一定用类似色调的蝶啶代替类胡萝卜素。
更新日期：2021-09-09
中文翻译：
环境梯度预测环境获得的类胡萝卜素与自合成蝶啶色素的比例
类胡萝卜素是产生珠被着色的重要色素；然而，在某些环境中，它们的膳食供应可能有限。许多物种使用类胡萝卜素和自合成蝶啶色素的组合产生黄色到红色的色调。一个令人信服的假设是，在类胡萝卜素可用性有限的环境中，蝶啶可以替代类胡萝卜素。为了验证这一假设，我们量化了来自 27 种蜥蜴蜥蜴的多种肤色和个体中五种类胡萝卜素和六种蝶呤色素的浓度。我们表明环境梯度可以预测类胡萝卜素与蝶啶的比例；在植被生产力低的干旱环境中，类胡萝卜素浓度较低，蝶啶浓度较高。类胡萝卜素和蝶啶色素都存在于所有物种中，但只有蝶啶浓度可以解释物种之间的颜色变化，类胡萝卜素和具有相似色调的蝶啶色素之间没有相关性。这些结果表明，在类胡萝卜素可能有限的干旱环境中，物种可以通过合成更多的蝶啶来补偿，但不一定用类似色调的蝶啶代替类胡萝卜素。
京公网安备 11010802027423号