Characterization and phylogenetic analysis of the chloroplast genome in Elaeocarpus duclouxii.

Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI:10.1080/23802359.2024.2409759

Zhitian Du, Haoliang Hu, Xingyu Zeng, Yongle Liu, Ying Chen, Zhuoyu Chenyang, Rong Zhu, Huang Kerui

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Abstract

Elaeocarpus duclouxii, an evergreen tree species, is renowned for its fruits rich in flavonoids exhibiting potent antioxidant properties. Despite its significance, the chloroplast genome of this plant has remained unexplored until now. Our study presents the first comprehensive sequencing and analysis of the E. duclouxii chloroplast genome, revealing a circular DNA molecule of 158,148 base pairs. This genome comprises a large single-copy region of 85,700 base pairs, a small single-copy region of 17,672 base pairs, and a pair of inverted repeat regions totaling 27,388 base pairs. The genome encodes 132 genes, including 87 protein-coding genes, 37 transfer RNA genes, and 8 ribosomal RNA genes. Phylogenetic analyses indicate a close evolutionary relationship between E. duclouxii and E. sylvestris. This study not only represents the first phylogenetic investigation of E. duclouxii but also establishes a crucial genomic foundation for future research area such as conservation genetics, evolutionary biology, and potential biotechnological applications.

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Elaeocarpus duclouxii 叶绿体基因组的特征和系统发育分析。

杜仲（Elaeocarpus duclouxii）是一种常绿树种，因其果实富含类黄酮而闻名，具有强大的抗氧化特性。尽管其重要性不言而喻，但这种植物的叶绿体基因组至今仍未被探索。我们的研究首次对杜仲叶绿体基因组进行了全面测序和分析，发现了一个由 158,148 个碱基对组成的环状 DNA 分子。该基因组包括一个 85,700 碱基对的大型单拷贝区、一个 17,672 碱基对的小型单拷贝区和一对共 27,388 碱基对的倒置重复区。基因组编码 132 个基因，包括 87 个蛋白质编码基因、37 个转运 RNA 基因和 8 个核糖体 RNA 基因。系统进化分析表明，E. duclouxii 和 E. sylvestris 之间存在密切的进化关系。这项研究不仅是对 E. duclouxii 的首次系统发育调查，还为未来的研究领域（如保护遗传学、进化生物学和潜在的生物技术应用）奠定了重要的基因组基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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