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首页> 外文期刊>BMC Evolutionary Biology >Larval nutrition-induced plasticity affects reproduction and gene expression of the ladybeetle, Cryptolaemus montrouzieri
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Larval nutrition-induced plasticity affects reproduction and gene expression of the ladybeetle, Cryptolaemus montrouzieri

机译：幼虫营养诱导的可塑性影响瓢虫隐猴（Cryptolaemus montrouzieri）的繁殖和基因表达

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Background Organisms may develop into multiple phenotypes under different nutritional environments by developmental plasticity, whereas the potential costs and mechanisms of such plasticity are poorly understood. Here we examined the fitness and gene expression of nutrition-induced phenotypes in the ladybeetle, Cryptolaemus montrouzieri after having experienced varying larval food regimes . Results We found that C. montrouzieri adults undergoing a variable larval food regime achieved a similar developmental time, survival, body mass and egg production as those undergoing a high larval food regime. The survival, developmental time, body mass and fecundity of the adults from a restricted larval food regime were inferior to those from the high and variable larval food regimes. However, the adults from this restricted larval food regime had a higher expression level of genes encoding immune- and antioxidant-related enzymes than those from the high and variable larval food regimes when exposed to starvation and pesticide conditions in adult life. Conclusions These results suggest that larval food availability in C. montrouzieri not only triggers adult phenotypic differences but also affects reproduction and expression level of genes in adult life, indicating that the larval nutritional conditions can affect adult fitness and resistance to stressful conditions through developmental plasticity.
机译：背景技术在不同的营养环境下，生物可能会因发育可塑性而发展为多种表型，而人们对这种可塑性的潜在成本和机制却知之甚少。在这里，我们在经历了不同的幼虫食物制度后，在瓢虫，隐山隐猴中研究了营养诱导表型的适应性和基因表达。结果我们发现，经历可变幼虫食物方案的成年梭菌成虫的发育时间，存活率，体重和产蛋量与经历高幼虫食物方案的成年时间相似。受限制的幼虫食物方案的成虫的存活，发育时间，体重和繁殖力低于高幼虫食物方案的成虫。但是，在成年后暴露于饥饿和杀虫剂条件下时，这种受限制的幼虫食物制度的成年人的编码免疫和抗氧化剂相关酶的基因的表达水平高于那些来自高和可变幼虫食物制度的成年人的编码水平。结论这些结果表明，蒙氏梭菌的幼虫食物供应不仅触发成年表型差异，而且还影响成年生活中基因的繁殖和表达水平，表明幼虫的营养状况可以通过发育可塑性影响成年人的健康状况和对压力状况的抵抗力。

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