Genomic basis for cell-wall diversity in plants. A comparative approach to gene families in rice and Arabidopsis.
Genomic basis for cell-wall diversity in plants. A comparative approach to gene families in rice and Arabidopsis.
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DOI：
10.1093/pcp/pch151
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发表时间：
2004-09
影响因子：
4.9
通讯作者：
R. Yokoyama;K. Nishitani
中科院分区：
文献类型：
--
作者：
R. Yokoyama;K. Nishitani
单子叶植物和双子叶植物不仅在体型和发育模式上有明显的不同，而且在细胞壁的结构特征上也有明显的不同。最近水稻（Oryza sativa）基因组序列的完成和序列数据的发表，以及拟南芥基因组数据库的完成，首次提供了比较两种不同开花植物细胞壁相关基因的完整补充的机会。我们利用拟南芥和水稻分别具有I型和II型细胞壁这一事实进行了比较，因此代表了植物细胞壁结构特征的两个极端。本文将细胞壁相关基因划分为32个基因家族，并建立了它们的系统发育树。利用这些数据，我们可以在系统发育上比较拟南芥和水稻之间特别感兴趣的单个基因。这种比较基因组方法表明，两种植物种群中细胞壁结构的差异实际上反映了参与各自植物物种细胞壁动力学的单个基因家族的多样性。本研究还鉴定了在拟南芥和其他植物物种中具有明确功能的基因的假定的水稻同源物。
Monocotyledons and dicotyledons are distinct, not only in their body plans and developmental patterns, but also in the structural features of their cell walls. The recent completion of the rice (Oryza sativa) genomic sequence and publication of the sequence data, together with the completed database of the Arabidopsis thaliana genome, provide the first opportunity to compare the full complement of cell-wall-related genes from the two distinct classes of flowering plants. We made this comparison by exploiting the fact that Arabidopsis and rice have type I and type II walls, respectively, and therefore represent the two extremes in terms of the structural features of plant cell walls. In this review article, we classify all cell-wall-related genes into 32 gene families, and generate their phylogenetic trees. Using these data, we can phylogenetically compare individual genes of particular interest between Arabidopsis and rice. This comparative genome approach shows that the differences in wall architecture in the two plant groups actually mirror the diversity of the individual gene families involved in the cell-wall dynamics of the respective plant species. This study also identifies putative rice orthologs of genes with well-defined functions in Arabidopsis and other plant species.