Liu Mingzhong, Wu Jiaxin, Shi Yunfeng, Shan Rongrong
Key Laboratory for Coastal Marine Eco-Environment Process and Carbon Sink of Hainan province, Yazhou Bay Innovation Institute, College of Ecology and Environment, Hainan Tropical Ocean University, Sanya, China.
Mitochondrial DNA B Resour. 2024 Nov 26;9(11):1620-1625. doi: 10.1080/23802359.2024.2432370. eCollection 2024.
Asch. & Schweinf. 1870 (Cymodoceaceae) is a seagrass found in the tropical and temperate Indo-Pacific coastal waters. Seagrass beds composed of and other seagrasses form ecologically valuable ecosystems. In this study, the complete chloroplast genome of was sequenced and characterized for the first time. It is a circular genome of 158,311 bp in length, consisting of a large single-copy region (88,451 bp), a small single-copy region (18,836 bp), and a pair of inverted repeats (25,512 bp). A total of 130 genes were annotated, including 86 protein-coding genes (PCGs), 36 transfer RNA (tRNA) genes, and 8 ribosomal RNA (rRNA) genes. Seven PCGs and 6 tRNA genes contain 1 intron, and 3 PCGs contain 2 introns. In addition, 7 PCGs, 7 tRNA genes, and all the rRNA genes are multi-copy genes with 2 copies. Phylogenetic analysis shows that clusters with in one clade, both belonging to the family Cymodoceaceae. This study provides new information to support further research on the phylogeny of Cymodoceaceae.
阿施. 和施温夫. 1870（丝粉藻科）是一种在热带和温带印度-太平洋沿海水域发现的海草。由[该物种名称]和其他海草组成的海草床形成了具有生态价值的生态系统。在本研究中，首次对[该物种名称]的完整叶绿体基因组进行了测序和特征分析。它是一个长度为158,311 bp的环状基因组，由一个大单拷贝区域（88,451 bp）、一个小单拷贝区域（18,836 bp）和一对反向重复序列（25,512 bp）组成。总共注释了130个基因，包括86个蛋白质编码基因（PCG）、36个转运RNA（tRNA）基因和8个核糖体RNA（rRNA）基因。7个PCG和6个tRNA基因含有1个内含子，3个PCG含有2个内含子。此外，7个PCG、7个tRNA基因和所有rRNA基因都是具有2个拷贝的多拷贝基因。系统发育分析表明，[该物种名称]与[另一物种名称]在一个分支中聚类，两者都属于丝粉藻科。本研究为支持丝粉藻科系统发育的进一步研究提供了新信息。
