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Identification, characterization and expression analysis of lineage-specific genes within Triticeae

机译：在Triticeae内谱系特异性基因的鉴定，表征和表达分析

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Lineage-specific genes (LSGs) are a set of genes in a given taxon without significant sequence similarity to genes and intergenic sequences of other taxa and are functional. The tribe Triticeae mainly includes species of different ploidy levels, such as staple food crops wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.). This study is aimed at mining and characterizing the Triticeae-specific genes (TSGs) using expressed sequence data of wheat. A total of 3812 TSGs was identified and they were generally characterized by smaller size, fewer exons, shorter open reading frames and lower expression levels. Most TSGs were expressed with tissue preference and many of them were predominantly expressed in reproduction related tissues, especially in young stamen. Nearly one third of the TSGs were stress-responsive and inducible under abiotic and/or biotic stresses. A co-expression-based annotation supported the relevance of some TSGs with reproduction and stress responses, indicating their potential economic importance.
机译：特异性基因（LSG）是在给定的分类群中的一组基因，而没有与其他征草基因的基因和非基因序列具有显着序列相似性，并且是功能性的。 Tribe Triticeae主要包括不同倍性水平的种类，例如主食作物小麦（Triticum aestivum L.）和大麦（Hordeum Vulgare L.）。该研究旨在使用表达的小麦的序列数据进行挖掘和表征特异性特异性基因（TSG）。鉴定了总共3812SGS，它们通常具有较小的尺寸，更少的外显子，更短的开放阅读框架和较低的表达水平。大多数TSG被组织偏好表达，其中许多在繁殖相关组织中主要表达，特别是在年轻的雄蕊中。近三分之一的TSGS在非生物和/或生物应激下敏感响应和诱导。基于共表达的注释支持某些TSG具有复制和应力响应的相关性，表明其潜在的经济意义。

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