系统鉴定获得129个玉米POD基因家族成员，基于系统发育分析，将玉米的129个POD基因划分为4组，均匀分布于玉米的10条染色体上，在1、2、5、9、10号染色体上均出现了基因组复制事件。种间共线性分析中与拟南芥仅有两个共线性基因，在单子叶与双子叶植物中存在较大差异。启动子顺式作用元件分析表明，ZmPOD基因家族对光和激素响应较为敏感，特别是激素中的脱落酸和茉莉酸，顺式作用元件分别为618个和488个。在紫外线和灰斑病胁迫下，ZmPOD8、ZmPOD14、ZmPOD16和ZmPOD87基因表达量显著提高，不存在同一基因同时响应多种胁迫的现象。

This study systematically identified 129 members of the maize peroxidase(POD)gene family. Based on phylogenetic analysis, these 129 maize POD genes were divided into four groups, which were randomly distributed across the 10 chromosomes of maize. Genomic duplication events occurred on chromosomes 1, 2, 5, 9, and 10. In the interspecific collinearity analysis, there are only two collinear genes with Arabidopsis thaliana, indicating significant differences between monocotyledonous and dicotyledonous plants. Analysis of the cis-acting elements on both sides of the promoter indicates that the ZmPOD family genes are relatively sensitive to light and hormones. Especially for abscisic acid and jasmonic acid in hormones, there are 618 and 488 cis-acting elements respectively. Under the stress of ultraviolet radiation and gray leaf spot disease, the expression levels of ZmPOD8, ZmPOD14, ZmPOD16, and ZmPOD87 genes swere significantly upregulated, and no single gene was found to respond to multiple stresses simultaneously.

S513.035.3

国家自然科学基金面上项目(32171928)