Transcriptome-wide expression variation associated with environmental plasticity and mating success in cactophilic Drosophila mojavensis.
Transcriptome-wide expression variation associated with environmental plasticity and mating success in cactophilic Drosophila mojavensis.
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转录组范围的表达变异与环境可塑性和嗜果蝇莫哈文西斯交配成功相关。
DOI：
10.1111/evo.12082
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Smith G
中科院分区：
文献类型：
--
作者：
Smith G
生态物种形成伴随着种群对不同环境的适应和生殖隔离的同步进化而发生。表型可塑性可能影响生态适应和繁殖性状。我们研究了环境特异性基因表达和雄性交配成功cactophilicDrosophila mojavensis使用转录组测序。该物种在不同种类的宿主植物中表现出依赖仙人掌的交配成功，许多性状具有基因型与环境的相互作用。我们在两种天然仙人掌宿主上培养了从产卵到羽化的苍蝇，并调查了在求爱试验中成功或不成功交配的成年雄性的基因表达。我们确定了基因表达的差异，包括与代谢有关的功能，最有可能与宿主仙人掌物种之间的化学差异。几个表观遗传相关的功能被确定，可能发挥作用，在调节基因表达的成人由于宿主仙人掌的影响，幼虫，交配成功。仙人掌依赖的交配成功涉及的翻译，转录和神经系统发育的基因表达差异。这表明神经功能基因在果蝇交配成功中的作用。莫哈文斯马莱斯。总之，这些结果表明，通过调节基因表达的环境变化对交配成功的影响可能是生态物种形成的一个重要方面。
Ecological speciation occurs with the adaptation of populations to different environments and concurrent evolution of reproductive isolation. Phenotypic plasticity might influence both ecological adaptation and reproductive traits. We examined environment-specific gene expression and male mating success in cactophilicDrosophila mojavensisusing transcriptome sequencing. This species exhibits cactus-dependent mating success across different species of host plants, with genotype-by-environment interactions for numerous traits. We cultured flies from egg to eclosion on two natural cactus hosts and surveyed gene expression in adult males that were either successful or unsuccessful in achieving copulation in courtship trials. We identified gene expression differences that included functions involved with metabolism, most likely related to chemical differences between host cactus species. Several epigenetic-related functions were identified that might play a role in modulating gene expression in adults due to host cactus effects on larvae, and mating success. Cactus-dependent mating success involved expression differences of genes implicated in translation, transcription, and nervous system development. This suggests a role of neurological function genes in the mating success ofD. mojavensismales. Together, these results suggest that the influence of environmental variation on mating success via regulation of gene expression might be an important aspect of ecological speciation.