Gene expression plasticity resulting from parental leaf damage in Mimulus guttatus
Gene expression plasticity resulting from parental leaf damage in Mimulus guttatus
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DOI：
10.1111/nph.13081
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发表时间：
2015-01-01
期刊：
影响因子：
9.4
通讯作者：
Hileman, Lena C.
中科院分区：
文献类型：
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作者：
Colicchio, Jack M.;Monnahan, Patrick J.;Hileman, Lena C.
滴状含羞草的叶毛密度受亲本环境的影响较大。在这项研究中，我们比较了受损植物和对照植物后代的整体基因表达模式。基因表达的显著差异可能解释了观察到的毛状体反应，并确定了其他反应途径。利用全转录组RNA测序，我们估计了亲本受到或没有受到叶片伤害的等基因幼苗之间的差异基因表达。我们鉴定了900多个对父母伤害做出反应的差异表达基因。这些基因聚在一起，涉及细胞壁和细胞膜的发育、胁迫反应途径和次生代谢。基因表达作为亲代环境的结果以一种有针对性的方式改变，这可能会改变多条发育途径，如果他们经历的环境与他们的父母相似，可能会增加后代的适应性。
Leaf trichome density in Mimulus guttatus can be altered by the parental environment. In this study, we compared global gene expression patterns in progeny of damaged and control plants. Significant differences in gene expression probably explain the observed trichome response, and identify additional responsive pathways. Using whole transcriptome RNA sequencing, we estimated differential gene expression between isogenic seedlings whose parents had, or had not, been subject to leaf damage. We identified over 900 genes that were differentially expressed in response to parental wounding. These genes clustered into groups involved in cell wall and cell membrane development, stress response pathways, and secondary metabolism. Gene expression is modified as a consequence of the parental environment in a targeted way that probably alters multiple developmental pathways, and may increase progeny fitness if they experience environments similar to that of their parents.