The social brain: transcriptome assembly and characterization of the hippocampus from a social subterranean rodent, the colonial tuco-tuco (Ctenomys sociabilis).

The social brain: transcriptome assembly and characterization of the hippocampus from a social subterranean rodent, the colonial tuco-tuco (Ctenomys sociabilis).
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DOI:
10.1371/journal.pone.0045524
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Lacey EA
Lacey EA
中科院分区:
综合性期刊3区
文献类型:
--
作者:
MacManes MD;Lacey EA

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阐明复杂适应性表型背后的遗传机制是进化生物学的中心问题。对于行为生物学家来说,将基因表达的变异与特定行为特征的发生联系起来的能力长期以来一直是一个很大程度上无法实现的目标。与同种生物的社会互动代表了大多数动物物种行为的基本组成部分。尽管有几项哺乳动物研究试图使用候选基因方法来揭示社会关系的遗传基础,但还没有人尝试过使用高通量测序进行更全面的、基于转录组的分析。作为更好地理解哺乳动物社会性的遗传基础的第一步,我们为殖民地的Tuco-tuco(Ctenomys Social Bilis)制作了一个参考转录组,这是阿根廷西南部特有的一种群居的地下啮齿动物。具体地说,我们分析了超过5亿个来自不同社会条件下圈养的10只殖民地塔科杜鹃的海马区的Illumina测序读数。由此产生的参考转录组为未来旨在探索这种非模式物种的社会环境和基因表达之间的关系的研究提供了一个关键工具。
Elucidating the genetic mechanisms that underlie complex adaptive phenotypes is a central problem in evolutionary biology. For behavioral biologists, the ability to link variation in gene expression to the occurrence of specific behavioral traits has long been a largely unobtainable goal. Social interactions with conspecifics represent a fundamental component of the behavior of most animal species. Although several studies of mammals have attempted to uncover the genetic bases for social relationships using a candidate gene approach, none have attempted more comprehensive, transcriptome-based analyses using high throughout sequencing. As a first step toward improved understanding of the genetic underpinnings of mammalian sociality, we generated a reference transcriptome for the colonial tuco-tuco (Ctenomys sociabilis), a social species of subterranean rodent that is endemic to southwestern Argentina. Specifically, we analyzed over 500 million Illumina sequencing reads derived from the hippocampi of 10 colonial tuco-tucos housed in captivity under a variety of social conditions. The resulting reference transcriptome provides a critical tool for future studies aimed at exploring relationships between social environment and gene expression in this non-model species of social mammal.
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