Avian egg colour and sexual selection: does eggshell pigmentation reflect female condition and genetic quality?
Avian egg colour and sexual selection: does eggshell pigmentation reflect female condition and genetic quality?
复制标题
DOI：
10.1046/j.1461-0248.2003.00505.x
复制
发表时间：
2003-09-01
期刊：
影响因子：
8.8
通讯作者：
Osorno, JL
中科院分区：
文献类型：
--
作者：
Moreno, J;Osorno, JL
鸟类蛋的颜色主要被解释为隐藏或模仿，尽管某些颜色（例如蓝色和绿色）的功能尚未得到证实。我们解释鸡蛋的颜色作为一个性选择的信号，奠定女性的遗传质量，以其配偶，以诱导更高的分配父亲的照顾。蓝绿色色素胆绿素是一种抗氧化剂，其沉积可能标志着抗氧化能力，而棕色色素原卟啉（一种促氧化剂）的沉积可能标志着对氧化应激的耐受性。卵底色可能是可遗传的，并且在遗传学上是不稳定的。这一假说也适用于那些拥有彩色卵子和父爱的动物。
Avian egg colour has been explained as mainly serving crypsis or mimetism, although the function of certain colours (e.g. blue and green) has not yet been demonstrated. We interpret egg colour as a sexually selected signal of the laying female's genetic quality to its mate in order to induce a higher allocation of paternal care. The blue-green pigment biliverdin is an antioxidant, the deposition of which may signal antioxidant capacity whereas the deposition of the brown pigment protoporphyrin, a pro-oxidant, may signal tolerance of oxidative stress. Egg ground colour is presumably heritable and phylogenetically labile. The hypothesis can be applied to animals with colourful eggs and paternal care.