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首页> 外文期刊>The European Journal of Neuroscience >The expression of genes encoding visual components is regulated by a circadian clock, light environment and age in the honeybee (Apis mellifera).
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The expression of genes encoding visual components is regulated by a circadian clock, light environment and age in the honeybee (Apis mellifera).

机译：蜜蜂（Apis mellifera）的昼夜节律，光环境和年龄调节着编码视觉成分的基因的表达。

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摘要

The honeybee, Apis mellifera, has been used as a model to study the development of the visual system and adult bee behaviour. However, the regulation of the levels of visual component genes has never been addressed in this organism. We isolated honeybee cDNAs encoding green-sensitive opsin and visual arrestin and then measured their mRNA levels in honeybee workers. Both mRNAs fluctuate on a daily cycle that depends on a pacemaker that functions separately from the pacemaker which controls rhythmic locomotor activity. The cycling-patterns of opsin and arrestin mRNAs are different from each other and are modified by light. Furthermore, light exposure can increase the absolute levels of both mRNAs and the arrestin mRNA level is also dependent on age. Consistent with these results, both mRNA levels are higher in foragers than in in-hive bees under natural conditions. This study thus shows that the expression of genes encoding visual components is regulated by multiple factors and is adjusted to the honeybees' need for vision during the day, and throughout their lives. Comparison of data obtained with honeybees and other organisms indicates that there is a link between the regulation of phototransduction components and vision-related animal behaviour.
机译：蜜蜂Apis mellifera已被用作研究视觉系统和成年蜜蜂行为的模型。然而，在该生物中从未解决视觉成分基因水平的调节。我们分离了编码绿色敏感视蛋白和视觉抑制蛋白的蜜蜂cDNA，然后测量了蜜蜂工人中其mRNA的水平。这两种mRNA的每日波动取决于起搏器的功能，起搏器的功能与控制有节奏的运动活动的起搏器分开。视蛋白和视紫红质mRNA的循环模式彼此不同，并被光线修饰。此外，光照可以增加两种mRNA的绝对水平，而抑制素mRNA的水平也取决于年龄。与这些结果一致，在自然条件下，觅食者的两种mRNA水平均高于蜂巢蜜蜂。因此，这项研究表明，编码视觉成分的基因的表达受到多种因素的调节，并且可以适应蜜蜂在白天以及一生中对视觉的需求。对蜜蜂和其他生物获得的数据进行的比较表明，光导成分的调节与视觉相关的动物行为之间存在联系。

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