An appraisal of how the vitamin A-redox hypothesis can maintain honesty of carotenoid-dependent signals.

An appraisal of how the vitamin A-redox hypothesis can maintain honesty of carotenoid-dependent signals.
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DOI:
10.1002/ece3.1364
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发表时间:
2015-01
影响因子:
2.6
通讯作者:
Verhulst, Simon
Verhulst, Simon
中科院分区:
生物学2区
文献类型:
--
作者:
Simons, Mirre J. P.;Groothuis, Ton G. G.;Verhulst, Simon

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维生素A-氧化还原假说提供了一个诚实的信号表型质量的类胡萝卜素依赖性状的解释。维生素A-氧化还原假说的一个关键方面,适用于黄色和红色着色,是假设严格调节的维生素A血浆水平对负责从肠道隔离维生素A和类胡萝卜素的酶的负反馈。我们进行了荟萃分析,发现维生素A水平与血浆类胡萝卜素水平呈正相关(r = 0.50,P = 0.0002)。基于这一发现和进一步的理论考虑,我们认为维生素A-氧化还原假说不太可能解释类胡萝卜素依赖的诚实信号。
The vitamin A-redox hypothesis provides an explanation for honest signaling of phenotypic quality by carotenoid-dependent traits. A key aspect of the vitamin A-redox hypothesis, applicable to both yellow and red coloration, is the hypothesized negative feedback of tightly regulated Vitamin A plasma levels on the enzyme responsible for sequestering both Vitamin A and carotenoids from the gut. We performed a meta-analysis and find that vitamin A levels are positively related to carotenoid plasma levels (r = 0.50, P = 0.0002). On the basis of this finding and further theoretical considerations, we propose that the vitamin A-redox hypothesis is unlikely to explain carotenoid-dependent honest signaling.
黄色皮肤基因的鉴定显示了家鸡的杂种起源。
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