The complete plastome of a newly described species, Iris cangshanensis.

IF 0.5 4区生物学 Q4 GENETICS & HEREDITY

Mitochondrial DNA. Part B, Resources Pub Date : 2024-11-19 eCollection Date: 2024-01-01 DOI:10.1080/23802359.2024.2429640

Jinfeng Liu, Xianfeng Jiang

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Abstract

Iris cangshanensis X. F Jiang, Y. Yang, J. F Liu & Y. P Xie, 2024, is a newly described perennial herb with a small population size. This study utilized Illumina sequencing technology to construct the complete chloroplast genome of Iris cangshanensis. The chloroplast genome is 154,008 base pairs (bp) in size with 37.32% overall GC content, consisting of an 83,559 bp (35.35%) large single-copy region (LSC), a 17,937 bp (30.56%) small single-copy region (SSC), and a pair of 26,256 bp (42.78%) inverted repeat (IR) sequences. The chloroplast genome has 130 genes, including 84 protein-coding genes, 38 tRNA genes, and eight rRNA genes. A maximum-likelihood (ML) phylogenetic analysis based on the plastomes of 15 Iridaceae species revealed that Iris cangshanensis is closely related to the other 12 species within the Iris genus. Owing to the limited chloroplast genome sampling of the genus Iris in the present study, determining the position of Iris cangshanensis in this genus is difficult. Overall, the chloroplast genome reported in this study will be useful for further taxonomic and evolutionary studies of Iris. This study constructs the complete chloroplast genome of Iris cangshanensis. The chloroplast genome is 154,008 base pairs (bp) in size with 37.32% overall GC content, consisting of an 83,559 bp (35.35%) large single-copy region (LSC), a 17,937 bp (30.56%) small single-copy region (SSC), and a pair of 26,256 bp (42.78%) inverted repeat (IR) sequences. The chloroplast genome has 130 genes, including 84 protein-coding genes, 38 tRNA genes, and eight rRNA genes. A maximum-likelihood (ML) phylogenetic analysis based on 15 Iridaceae species revealed that Iris cangshanensis is closely related to the species within the Iris genus.

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新描述物种苍山鸢尾的完整质体。

苍山鸢尾（Iris cangshanensis） X. F Jiang, Y. Yang, J. F Liu & Y. P Xie, 2024，是一种新描述的多年生草本植物，种群数量较少。苍山鸢尾是一种新描述的多年生草本植物，种群数量较少。本研究利用 Illumina 测序技术构建了苍山鸢尾完整的叶绿体基因组。叶绿体基因组大小为 154 008 碱基对（bp），总 GC 含量为 37.32%，由 83 559 碱基对（35.35%）的大单拷贝区（LSC）、17 937 碱基对（30.56%）的小单拷贝区（SSC）和一对 26 256 碱基对（42.78%）的倒位重复序列（IR）组成。叶绿体基因组有 130 个基因，包括 84 个蛋白质编码基因、38 个 tRNA 基因和 8 个 rRNA 基因。基于 15 个鸢尾科物种质粒的最大似然法（ML）系统进化分析表明，苍山鸢尾与鸢尾属的其他 12 个物种亲缘关系密切。由于本研究对鸢尾属的叶绿体基因组取样有限，因此很难确定苍山鸢尾在该属中的位置。总之，本研究报告的叶绿体基因组将有助于鸢尾属植物的进一步分类和进化研究。本研究构建了完整的苍山鸢尾叶绿体基因组。叶绿体基因组大小为 154 008 碱基对（bp），总 GC 含量为 37.32%，由 83 559 碱基对（35.35%）的大单拷贝区（LSC）、17 937 碱基对（30.56%）的小单拷贝区（SSC）和一对 26 256 碱基对（42.78%）的倒位重复（IR）序列组成。叶绿体基因组有 130 个基因，包括 84 个蛋白质编码基因、38 个 tRNA 基因和 8 个 rRNA 基因。基于 15 个鸢尾科物种的最大似然法（ML）系统进化分析表明，苍山鸢尾与鸢尾属的物种亲缘关系密切。

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来源期刊

Mitochondrial DNA. Part B, Resources Biochemistry, Genetics and Molecular Biology-Molecular Biology

CiteScore

1.30

自引率

20.00%

发文量

670

期刊介绍： This open access journal publishes high-quality and concise research articles reporting the sequence of full mitochondrial genomes, and short communications focusing on the physical, chemical, and biochemical aspects of mtDNA and proteins involved in mtDNA metabolism and interactions.