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De novo characterization of the gene-rich transcriptomes of two color-polymorphic spiders Theridion grallator and T. californicum (Araneae: Theridiidae) with special reference to pigment genes

机译:从头开始表征两个彩色多态蜘蛛Theridion grallator和T. californicum(Araneae:Theridiidae)的富含基因的转录组并特别提及色素基因

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摘要

BackgroundA number of spider species within the family Theridiidae exhibit a dramatic abdominal (opisthosomal) color polymorphism. The polymorphism is inherited in a broadly Mendelian fashion and in some species consists of dozens of discrete morphs that are convergent across taxa and populations. Few genomic resources exist for spiders. Here, as a first necessary step towards identifying the genetic basis for this trait we present the near complete transcriptomes of two species: the Hawaiian happy-face spider Theridion grallator and Theridion californicum. We mined the gene complement for pigment-pathway genes and examined differential expression (DE) between morphs that are unpatterned (plain yellow) and patterned (yellow with superimposed patches of red, white or very dark brown).
机译:背景Theridiidae科中的许多蜘蛛物种表现出戏剧性的腹部(阿胶体)颜色多态性。多态性以广泛的孟德尔方式遗传,并且在某些物种中由数十个离散的形态组成,这些形态在整个分类单元和种群中汇聚。蜘蛛的基因组资源很少。在这里,作为确定该性状遗传基础的第一步,我们介绍了两个物种近乎完整的转录组:夏威夷笑脸蜘蛛Theridion放牧者和Theridion californicum。我们为色素通路基因挖掘了基因补体,并检查了无模式(普通黄色)和带模式(黄色的红色,白色或非常深棕色的叠加斑点)之间的差异表达(DE)。

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