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首页> 外文期刊>Journal of genetics >Genomewide analysis of the lateral organ boundaries domain gene family in Vitis vinifera
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Genomewide analysis of the lateral organ boundaries domain gene family in Vitis vinifera

机译：葡萄中侧器官边界域基因家族的全基因组分析

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In plants, the transcription factor families have been implicated in many important biological processes. These processes include morphogenesis, signal transduction and environmental stress responses. Proteins containing the lateral organ boundaries domain (LBD), which encodes a zinc finger-like domain are only found in plants. This finding indicates that this unique gene family regulates only plant-specific biological processes. LBD genes play crucial roles in the growth and development of plants such as Arabidopsis, Oryza sativa, Zea mays, poplar, apple and tomato. However, relatively little is known about the LBD genes in grape (Vitis vinifera). In this study, we identified 40 LBD genes in the grape genome. A complete overview of the chromosomal locations, phylogenetic relationships, structures and expression profiles of this gene family during development in grape is presented here. Phylogenetic analysis showed that the LBD genes could be divided into classes I and II, together with LBDs from Arabidopsis. We mapped the 40 LBD genes on the grape chromosomes (chr1-chr19) and found that 37 of the predicted grape LBD genes were distributed in different densities across 12 chromosomes. Grape LBDs were found to share a similar intron/exon structure and gene length within the same class. The expression profiles of grape LBD genes at different developmental stages were analysed using microarray data. Results showed that 21 grape LBD genes may be involved in grape developmental processes, including preveraison, veraison and ripening. Finally, we analysed the expression patterns of six LBD genes through quantitative real-time polymerase chain reation analysis. The six LBD genes showed differential expression patterns among the three representative grape tissues, and five of these genes were found to be involved in responses to mannitol, sodium chloride, heat stress and low temperature treatments. To our knowledge, this is the first study to analyse the LBD gene family in grape and provides valuable information for classification and functional investigation of this gene family.
机译：在植物中，转录因子家族与许多重要的生物学过程有关。这些过程包括形态发生，信号转导和环境应激反应。仅在植物中发现包含编码锌指样结构域的侧器官边界结构域（LBD）的蛋白质。该发现表明该独特的基因家族仅调节植物特异性的生物学过程。 LBD基因在拟南芥，水稻，玉米，杨树，苹果和番茄等植物的生长发育中起着至关重要的作用。但是，关于葡萄中的LBD基因的了解相对较少。在这项研究中，我们鉴定了葡萄基因组中的40个LBD基因。本文介绍了该基因家族在葡萄发育过程中的染色体位置，系统发育关系，结构和表达谱的完整概述。系统发育分析表明，LBD基因与拟南芥的LBD可分为I类和II类。我们在葡萄染色体（chr1-chr19）上绘制了40个LBD基因，发现37个预测的葡萄LBD基因以不同的密度分布在12条染色体上。发现葡萄LBD在同一类别中具有相似的内含子/外显子结构和基因长度。使用微阵列数据分析了葡萄LBD基因在不同发育阶段的表达谱。结果显示21个葡萄LBD基因可能参与葡萄的发育过程，包括preveraison，veraison和成熟。最后，我们通过实时定量聚合酶链反应分析了六个LBD基因的表达模式。六个LBD基因在三个代表性葡萄组织中表现出差异表达模式，其中五个基因被发现与甘露醇，氯化钠，热应激和低温处理有关。据我们所知，这是第一项分析葡萄中LBD基因家族的研究，为该基因家族的分类和功能研究提供了有价值的信息。

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