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    李昊阳, 施杨, 丁亚娜, 徐吉臣. 杨树扩展蛋白基因家族的生物信息学分析[J]. 北京林业大学学报, 2014, 36(2): 59-67.
    引用本文: 李昊阳, 施杨, 丁亚娜, 徐吉臣. 杨树扩展蛋白基因家族的生物信息学分析[J]. 北京林业大学学报, 2014, 36(2): 59-67.
    LI Hao-yang, SHI Yang, DING Ya-na, XU Ji-chen.. Bioinformatics analysis of expansin gene family in poplar genome.[J]. Journal of Beijing Forestry University, 2014, 36(2): 59-67.
    Citation: LI Hao-yang, SHI Yang, DING Ya-na, XU Ji-chen.. Bioinformatics analysis of expansin gene family in poplar genome.[J]. Journal of Beijing Forestry University, 2014, 36(2): 59-67.

    杨树扩展蛋白基因家族的生物信息学分析

    Bioinformatics analysis of expansin gene family in poplar genome.

    • 摘要: 扩展蛋白是植物细胞壁的重要组成部分,广泛存在于植物基因组中,具有疏松细胞壁组分、增加细胞壁柔韧 性的作用,在植物的生长发育及抗性等多个方面起着重要的作用。全基因组序列分析显示,杨树中的扩展蛋白基 因家族包含36 个成员,分属于EXPA、EXPB、EXLB 和EXLA 4 个亚家族。系统生物信息学分析表明,杨树扩展蛋白 基因具有保守的序列特征和稳定的蛋白结构,包括9 种不同的内含子起源模式以及6 个高频密码子。基因表达分 析显示,该家族基因在杨树木材形成相关的组织/ 器官中表达丰度较高,对林木生殖发育也起着重要的作用。研究 结果展示了杨树扩展蛋白基因家族的基本信息和特点,为深入研究杨树扩展蛋白基因的功能搭建平台。

       

      Abstract: As an important component of plant cell wall, expansins widely present in plant genome and have unique loosening冶effects and are thought to function in plant growth, development, plant resistance, etc. Whole genome sequencing of poplar reveals it containing 36 expansin genes classified in to 4 subfamilies (EXPA, EXPB, EXLA and EXLB). Systematic bioinformatics analysis showed that poplar expansin genes had the conserved apparent sequence features and stable protein structure. It obviously displayed 9 different introns originate modes and 6 high-frequency codons. Transcriptome analysis showed that the expansin genes expressed highly in poplar wood forming tissues or organs, and were associated with the reproductive development. The results here displayed the basic information of poplar expansin superfamily which could be a good platform for the gene function study in future.

       

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