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首页> 外文期刊>Advancements in Life Sciences >Evolution of Phosphoenolpyruvate carboxylase encoding transcripts in Chickpea ( Cicer arietinum L.)
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Evolution of Phosphoenolpyruvate carboxylase encoding transcripts in Chickpea ( Cicer arietinum L.)

机译：鹰嘴豆（Cicer arietinum L.）中磷酸烯醇丙酮酸羧化酶编码转录本的演变

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Background: Phosphoenolpyruvate carboxylase (PEPC; EC 4.1.1.31) is an important enzyme encoded by a gene family of at least 2-8 plant type and 1-2 bacterial type genes depending upon genome size or species complexity. This enzyme functions as catalyst for the β-carboxylation of phosphoenolpyruvate (PEP) to form oxaloacetate in cytoplasm. It is involved in carbon fixation and various other plant metabolic pathways. Methods: In this study we characterized the evolutionary perspective of PPC transcripts and their abundance pattern in different plant tissues of chickpea ( Cicer arietinum L.). Results: The current study revealed that PEPC enzyme in chickpea is encoded by a gene family of at least 6 transcripts. All active site residues of C3 PEPCs were found in transcripts. Phylogenetic analysis of the amino acid sequences showed two major groups PTPC and BTPC from different ancestral lineages. Divergence of PTPC in two groups and further convergence within species was found in most of the plants while multiple evolutionary divergences was likely to be specific in legumes including chickpea. Conclusion: CaPPC genes are regulated under various abiotic stress. Furthermore, the expression pattern of the identified genes can be helpful to explore plant metabolism of chickpea under abiotic stresses, which can be the next step to explore more into this gene family in chickpea.
机译：背景：磷酸烯醇丙酮酸羧化酶（PEPC; EC 4.1.1.31）是一种重要的酶，由至少2-8种植物类型和1-2种细菌类型基因的基因家族编码，具体取决于基因组大小或物种复杂性。该酶充当磷酸烯醇丙酮酸（PEP）的β-羧化反应以在细胞质中形成草酰乙酸的催化剂。它参与碳固定和其他各种植物代谢途径。方法：在这项研究中，我们表征了鹰嘴豆（Cicer arietinum L.）不同植物组织中PPC转录本的进化前景及其丰度模式。结果：目前的研究表明，鹰嘴豆中的PEPC酶由至少6个转录本的基因家族编码。在转录物中发现了C3 PEPC的所有活性位点残基。氨基酸序列的系统进化分析显示，来自不同祖先谱系的两个主要类别为PTPC和BTPC。在大多数植物中，PTPC分为两组，并且在种内进一步趋同，而在包括鹰嘴豆在内的豆类中，多种进化趋同可能是特定的。结论：CaPPC基因受多种非生物胁迫的调控。此外，所鉴定基因的表达模式可能有助于探索非生物胁迫下鹰嘴豆的植物代谢，这可能是下一步探索鹰嘴豆中该基因家族的下一步。

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