AGAMOUS(AG)基因是控制高等植物花发育的重要基因，已在20多种植物基因组中发现同源基因。作为MADS-box家族的一员，AG基因结构具有高度的保守性。AG及其同源基因在植物生长发育中的功能已经十分清晰。本文研究AG同源基因在豆科几个代表物种中的分布，对其基因结构和蛋白序列进行分析比对。结果表明，AG同源基因在不同的豆科物种中具有高度的序列同源性及结构保守性。进一步通过蒺藜苜蓿Medicago truncatula的AG同源基因表达模式分析发现，其表达是与功能相互验证的。%AGAMOUS (AG) is an important gene which controls the flower development in higher plants. Since it was found in 1990s, dozens of homologous genes were identified in more than 20 kinds of plants. As a member of MADS-box family, it has a highly conservative structure and function. Now its functions in the growth and development of plants are very clear. In this study, structures and functions of AG and its homologous genes in some model plants in Fabaceae were analysed. The results proved that structures and functions of AG and its homologous genes were higher conserved. Deeply research about gene expression in Medicago truncatula showed that expression of AG related with its functions. This study can not only use for deeply research of AG, but also provide an important experimental data for flower strains breeding.
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