The complete chloroplast genome of Myristica teysmannii (Myristicaceae), an endemic and endangered species from Indonesia

Pub Date : 2023-09-19 DOI:10.1016/j.japb.2023.08.009

Siti Roosita Ariati , Arief Priyadi , Muhammad Rifqi Hariri , Rosniati Apriani Risna

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Abstract

Myristica teysmannii Miq. is an endemic and endangered plant, with narrow distribution to the southern part of East Java, Indonesia. This study was aimed to determine the complete chloroplast genome sequence of M. teysmannii using the Illumina NextSeq 500 platform and reconstruct the phylogenetic relationship with selected Magnoliids taxa. Results showed that the chloroplast genome of M. teysmannii is 155,975 bp in size, with a large single copy region (87,187 bp), a small single copy region (20,656 bp), and two inverted repeat regions (24,066 bp each). The chloroplast genome consists of 126 genes, including 85 protein-coding genes and eight ribosomal RNA and 35 transfer RNA genes. Phylogenetic analysis showed that M. teysmannii is placed in the Myristica clade along with M. yunnanensis, M. fatua, M. fragrans, and M. argentea. This phylogeny may be used as a foundation for further studies of this endemic and endangered plant species. Additionally, the position of Eusyderoxylon zwageri in the Endocomia clade instead of Lauraceae is surprising; further studies need to be conducted to confirm this finding.

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印度尼西亚特有濒危物种肉豆蔻(Myristica teysmannii)叶绿体全基因组

Myristica teysmannii Miq。是一种特有的濒危植物，狭窄分布于印度尼西亚东爪哇南部。本研究旨在利用Illumina NextSeq 500平台，确定teysmannii的全叶绿体基因组序列，并重建其与Magnoliids类群的系统发育关系。结果表明，柽柳叶绿体基因组大小为155,975 bp，包括一个大单拷贝(LSC)区(87,187 bp)、一个小单拷贝(SSC)区(20,656 bp)和两个反向重复(IR)区(每个24,066 bp)。叶绿体基因组由126个基因组成，包括85个蛋白质编码基因、8个核糖体RNA和35个转移RNA基因。系统发育分析表明，田氏分枝杆菌与云南分枝杆菌、法图亚分枝杆菌、香枝分枝杆菌和银根分枝杆菌属于肉豆蔻分支。这一系统发育为进一步研究这一特有濒危植物奠定了基础。此外，zwageri Eusyderoxylon在内生枝而不是樟科中的位置令人惊讶，需要进一步的研究来证实这一发现。

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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