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油棕（Jacq.）过氧化氢酶（CAT）基因家族：全基因组鉴定、分析和非生物胁迫响应表达谱。

Catalase (CAT) Gene Family in Oil Palm ( Jacq.): Genome-Wide Identification, Analysis, and Expression Profile in Response to Abiotic Stress.

机构信息

National Key Laboratory for Tropical Crop Breeding, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.

Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang 571339, China.

出版信息

Int J Mol Sci. 2024 Jan 25;25(3):1480. doi: 10.3390/ijms25031480.

DOI:10.3390/ijms25031480
PMID:38338758
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10855858/
Abstract

Catalases (CATs) play crucial roles in scavenging HO from reactive oxygen species, controlling the growth and development of plants. So far, genome-wide identification and characterization of CAT genes in oil palm have not been reported. In the present study, five genes were obtained through a genome-wide identification approach. Phylogenetic analysis divided them into two subfamilies, with closer genes sharing similar structures. Gene structure and conserved motif analysis demonstrated the conserved nature of intron/exon organization and motifs among the genes. Several cis-acting elements related to hormone, stress, and defense responses were identified in the promoter regions of s. Tissue-specific expression of genes in five different tissues of oil palm was also revealed by heatmap analysis using the available transcriptome data. Stress-responsive expression analysis showed that five genes were significantly expressed under cold, drought, and salinity stress conditions. Collectively, this study provided valuable information on the oil palm CAT gene family and the validated genes can be used as potential candidates for improving abiotic stress tolerance in oil palm and other related crops.

摘要

过氧化氢酶（CATs）在清除活性氧物种中的羟基自由基方面发挥着关键作用，控制着植物的生长和发育。迄今为止，油棕中 CAT 基因的全基因组鉴定和特征尚未见报道。本研究通过全基因组鉴定方法获得了 5 个基因。系统发育分析将它们分为两个亚家族，亲缘关系较近的基因具有相似的结构。基因结构和保守基序分析表明，这些基因的内含子/外显子组织和基序具有保守性。在启动子区域中鉴定到与激素、应激和防御反应相关的几个顺式作用元件。利用可用的转录组数据进行热图分析，揭示了 5 个基因在油棕五种不同组织中的组织特异性表达。应激响应表达分析表明，在冷、干旱和盐胁迫条件下，5 个基因的表达显著。综上所述，本研究为油棕 CAT 基因家族提供了有价值的信息，验证的基因可作为提高油棕和其他相关作物非生物胁迫耐受性的潜在候选基因。

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