Sun Zhixia, Priyadi Arief, Lai Yanlin, Li Jianhui
College of Architecture Engineering, Sanming University, Sanming, China.
Fujian Provincial Key Laboratory of the Development and Utilization of Bamboo Resources, Sanming University, Sanming, China.
Mitochondrial DNA B Resour. 2022 May 27;7(5):894-896. doi: 10.1080/23802359.2022.2078236. eCollection 2022.
Diels, 1931 of the Elaeocarpaceae is an endemic plant from China distributed in subtropical evergreen broad-leaved forests and an excellent ornamental tree. The only available chloroplast genomic resource of the genus at present is that of (Hance) Hemsl., 1900 from eastern China. Here, we report the complete chloroplast genome sequence of which is less common than . The complete chloroplast genome of is 158,077 bp in length, and shows quadripartite organization including a pair of inverted repeat regions (IRs) (24,963 bp) that is divided by a large single-copy (LSC) region (88,519 bp) and a small single-copy (SSC) region (19,632 bp). The circular chloroplast genome of contains 119 unique genes, composed of 74 protein-coding genes, 37 tRNA genes, and eight rRNA genes. Phylogenetic analysis involving 52 species with complete chloroplast genomes supported that is closely related to . This finding is in agreement with previous studies in which Elaeocarpaceae belongs to Oxalidales instead of Malvales and provides additional evidence for the monophyly of the , a sister clade of the .
杜英科的中华杜英(Diels, 1931)是一种中国特有的植物,分布于亚热带常绿阔叶林,是一种优良的观赏树种。目前该属唯一可用的叶绿体基因组资源是来自中国东部的猴欢喜((Hance)Hemsl., 1900)的叶绿体基因组。在此,我们报道了比猴欢喜少见的中华杜英的完整叶绿体基因组序列。中华杜英的完整叶绿体基因组长度为158,077 bp,呈四分体结构,包括一对反向重复区域(IRs)(24,963 bp),被一个大单拷贝(LSC)区域(88,519 bp)和一个小单拷贝(SSC)区域(19,632 bp)隔开。中华杜英的环状叶绿体基因组包含119个独特基因,由74个蛋白质编码基因、37个tRNA基因和8个rRNA基因组成。对52个具有完整叶绿体基因组的物种进行的系统发育分析支持中华杜英与猴欢喜密切相关。这一发现与先前关于杜英科属于酢浆草目而非锦葵目的研究一致,并为中华杜英(杜英属的一个姐妹分支)的单系性提供了额外证据。