Mesembryanthemum cordifolium L. F. (Aizoaceae) 完整叶绿体基因组的特征和系统发育分析。

Pub Date : 2024-09-24 eCollection Date: 2024-01-01 DOI:10.1080/23802359.2024.2398180

Wei Fu, Lin Li, Shuang Li, Yajie Li, Juzhi Sun, Liang Zhang, Yingchun Zou

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引用次数: 0

摘要

中白花（Mesembryanthemum cordifolium）是一种具有茎基酸代谢（CAM）的多年生植物，属于天南星科（Aizoaceae），具有重要的观赏和药用价值。在这项研究中，我们首次报道了该物种完整的叶绿体基因组序列。基因组总长度为 153,734 bp，包括一个长 85,692 bp 的大单拷贝区（LSC）、一个长 18,212 bp 的小单拷贝区（SSC）和一对长 24,915 bp 的倒位重复区（IR）。M.cordifolium叶绿体基因组的总 GC 含量为 37.08%。基因组编码 131 个基因，包括 87 个蛋白质编码基因（PCGs）、36 个转移 RNA 基因（tRNAs）和 8 个核糖体 RNA 基因（rRNAs）。系统进化分析表明，该物种与结晶藻比较接近。该叶绿体基因组序列对物种鉴别和了解中菊属的系统发育关系很有价值。

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Characteristics and phylogenetic analysis of the complete chloroplast genome of Mesembryanthemum cordifolium L. F. (Aizoaceae).

Mesembryanthemum cordifolium, a perennial plant with crassulacean acid metabolism (CAM) in the Aizoaceae family, has significant ornamental and medicinal values. In this study, we reported the first complete chloroplast genome sequence of this species. The total genome size was 153,734 bp in length, including a large single-copy (LSC) region of 85,692 bp, a small single-copy (SSC) region of 18,212 bp, and a pair of inverted repeat (IR) regions of 24,915 bp by each. The overall GC content of the M. cordifolium chloroplast genome was 37.08%. The genome encodes 131 genes, comprising 87 protein-coding genes (PCGs), 36 transfer RNA genes (tRNAs), and eight ribosomal RNA genes (rRNAs). Phylogenetic analysis shows this species was relatively close to M. crystallinum. This chloroplast genome sequence will be valuable for species discrimination and for understanding phylogenetic relationships within the genus Mesembryanthemum.

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