Characterization and phylogenetic analysis of the complete chloroplast genome sequence of <i>Dendrobium hainanense</i> (Orchidaceae)

In this study, we report the chloroplast (cp) genome of <i>Dendrobium hainanense</i>. The cp genome was 151,367 bp in length; the overall CG content of the genome was 37.46%. The length of the large single-copy (LSC) region was 83,938 bp, and 15,829 bp in a small single-copy (SSC) region, and a pair of inverted repeats (IRs) of 12,900 bp. One hundred and twenty-seven genes were predicted, including 81 protein-coding genes, 38 genes for tRNA, and eight genes for rRNA. The results of phylogenetic tree showed that <i>Dendrobium hainanense</i> had the closest genetic relationship with <i>Dendrobium parciflorum</i>. This study will be help to understand the genetic diversity of <i>Dendrobium</i>.本研究报道了海南石斛（Dendrobium hainanense）的叶绿体（chloroplast, cp）基因组。该叶绿体基因组全长151367 bp，全基因组CG含量为37.46%。其中大单拷贝（large single-copy, LSC）区域长度为83938 bp，小单拷贝（small single-copy, SSC）区域长度为15829 bp，另有一对反向重复（inverted repeats, IRs）序列长度为12900 bp。本研究共预测得到127个基因，包括81个蛋白编码基因、38个转运RNA（transfer RNA, tRNA）基因以及8个核糖体RNA（ribosomal RNA, rRNA）基因。系统发育树分析结果显示，海南石斛（Dendrobium hainanense）与少花石斛（Dendrobium parciflorum）的亲缘关系最近。本研究将有助于加深对石斛属（Dendrobium）植物遗传多样性的理解。

搜集汇总

背景与挑战

背景概述

该数据集提供了海南石斛（Dendrobium hainanense）的完整叶绿体基因组序列，长度为151,367 bp，GC含量为37.46%，包含127个基因，并进行了系统发育分析，揭示了其与Dendrobium parciflorum的最近遗传关系。该研究有助于理解石斛属的遗传多样性，并得到国家自然科学基金支持，适用于植物生物学和进化生物学等领域。