Genetic and environmental variation in the visual properties of bluefin killifish, Lucania goodei
Genetic and environmental variation in the visual properties of bluefin killifish, Lucania goodei
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DOI：
10.1111/j.1420-9101.2005.00886.x
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发表时间：
2005-05-01
影响因子：
2.1
通讯作者：
Travis, J
中科院分区：
文献类型：
--
作者：
Fuller, RC;Carleton, KL;Travis, J
动物使用它们的感觉系统来检测有关外部环境的信息，以便找到配偶，找到食物和栖息地，并避免捕食者。然而，很少有人了解的相对量的遗传和/或环境变化的感觉系统的属性。在本文中，我们证明了遗传和环境变化的视蛋白表达的蓝鳍金枪鱼的人口。我们测量了五个视蛋白的表达（与相应的视锥细胞的相对频率相关），使用定量，实时聚合酶链反应的后代从育种研究，后代在不同的光照条件下提出。在黄色色素中发现的视蛋白存在父系（即遗传）效应。产生紫色、蓝色和红色色素的视蛋白存在大坝效应。光照条件影响了除SWS 2A外的所有视蛋白的表达，并模仿了人群中发现的模式。这些结果强调了这样一个事实，即感觉系统既是可塑的，又是容易进化的特征。
Animals use their sensory systems to detect information about the external environment in order to find mates, locate food and habitat and avoid predators. Yet, there is little understanding of the relative amounts of genetic and/or environmental variation in sensory system properties. In this paper, we demonstrate genetic and environmental variation in opsin expression in a population of bluefin killifish. We measured expression of five opsins (which correlates with relative frequency of corresponding cones) using quantitative, real-time polymerase chain reaction for offspring from a breeding study where offspring were raised under different lighting conditions. Sire (i.e. genetic) effects were present for opsin found in yellow photopigment. Dam effects were present for opsins that create violet, blue and red photopigment. Lighting conditions affected expression of all opsins except SWS2A and mimicked the pattern found among populations. These results highlight the fact that sensory systems are both plastic and yet readily evolvable traits.