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By comparing their sequences with homologues from other plants, it was found that GME genes were highly conserved among plant species, though phylogenetic study showed that all known GMEs could be divided into two distinct groups corresponding to monocots and dicots.

通过逆转录PCR技术从水稻成熟叶片中克隆到两个GME基因的cDNA序列，并与其他植物物种中的GMEs进行比对，结果显示，GME基因在所有植物物种中高度保守，尽管进化树分析表明单子叶植物GMEs和双子叶植物GMEs在进化上相互独立。

It is easy to find that the broken area is the middle section between the pre-atress bar.

结构的破坏截面在预应力钢筋箍中间的截面上。最后，为减少模型中的弱约束区，作者加密了模型中的钢筋箍，提出了优化方案。