ABSTRACT The xyloglucan endotransglucosylase/hydrolase (XTH) genes in Arabidopsis thaliana (L.) Heynh. form part of a group of mechano-stimulated genes and play an important role in abiotic stress tolerance. Mining the RNAseq transcriptomic database of 40,430 potato (Solanum tuberosum L.) genes based on functional annotation and homology search, our objective was to discover potentially homologous XTH genes. A Gene Ontology-based XTH homology search and functional annotation discovered, from among the 33 A. thaliana (AtXTH) and 25 tomato (Solanum lycopersicum L.) (SlXTH) XTH genes, 35 gene sequences corresponding to 20 AtXTH genes and 40 gene sequences corresponding to 21 SlXTH genes, respectively. Thirteen sequences corresponding to 11 putative XTH genes in potato, named as StXTH after SlXTH genes, were significantly up- or down-regulated in response to ultrasound. These putative StXTH genes in potato can serve for future functional genetic analyses.

中文翻译：

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挖掘与马铃薯转录组中 XTH 基因相似的序列：识别同源 XTH 基因的入门步骤

摘要 拟南芥 (L.) Heynh 中的木葡聚糖内转葡糖基酶/水解酶 (XTH) 基因。形成一组机械刺激基因的一部分，在非生物胁迫耐受性中发挥重要作用。基于功能注释和同源性搜索挖掘包含 40,430 个马铃薯 (Solanum tuberosum L.) 基因的 RNAseq 转录组数据库，我们的目标是发现潜在同源的 XTH 基因。基于Gene Ontology的XTH同源搜索和功能注释，从33个拟南芥（AtXTH）和25个番茄（Solanum lycopersicum L.）（SlXTH）XTH基因中发现了35个基因序列对应于20个AtXTH基因和40个基因序列分别对应21个SlXTH基因。对应于马铃薯中 11 个假定 XTH 基因的 13 个序列（以 SlXTH 基因命名为 StXTH）在超声波响应下显着上调或下调。马铃薯中这些假定的 StXTH 基因可用于未来的功能遗传分析。