Liu Xuehua, Yang Wenli, Zhang Danke, Liu Hao, Cui Yueming, Wang Lei, Hu Hongyu, Yin Yue, Zhang Gangmin
Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People's Republic of China.
College of Landscape Architecture and Tourism, Hebei Agricultural University, Baoding, People's Republic of China.
Mitochondrial DNA B Resour. 2022 May 11;7(5):841-843. doi: 10.1080/23802359.2022.2073841. eCollection 2022.
(L. Liou) Luferov 1997, a perennial aquatic herb, is endemic to Beijing, China and has high water quality requirements. Because its habitat is under great threat and its population is declining, it is now listed as a national protected plant in China. To provide genomic resources for future research of this endangered species, the complete chloroplast genome sequence of was assembled and annotated for the first time. The complete chloroplast genome sequence was 156,139 bp in length, containing a large single copy region (LSC) of 85,430 bp and a small single copy region (SSC) of 19,970 bp, which were separated by a pair of 25,367 bp inverted repeat regions (IRs). The complete chloroplast sequence contained 112 unique genes, including 30 tRNA, 4 rRNA, and 78 protein-coding genes. The overall guanine-cytosine (GC) content of the chloroplast genome was 37.8%, and the GC contents of the LSC, SSC, and IR regions were 36.0%, 31.3%, and 43.5%, respectively. Phylogenetic analysis with the reported chloroplast sequences showed that was closely related to Steud. 1841, both of which belonged to Sect. DC. 1817. These data will provide essential resources regarding the evolution and conservation of .
（刘莉欧）Luferov 1997是一种多年生水生草本植物，为中国北京特有，对水质要求很高。由于其栖息地受到极大威胁且种群数量在减少，它现在被列为中国国家保护植物。为了为该濒危物种的未来研究提供基因组资源，首次组装并注释了其完整的叶绿体基因组序列。完整的叶绿体基因组序列长度为156,139 bp，包含一个85,430 bp的大单拷贝区域（LSC）和一个19,970 bp的小单拷贝区域（SSC），它们被一对25,367 bp的反向重复区域（IRs）隔开。完整的叶绿体序列包含112个独特基因，包括30个tRNA、4个rRNA和78个蛋白质编码基因。叶绿体基因组的总体鸟嘌呤 - 胞嘧啶（GC）含量为37.8%，LSC、SSC和IR区域的GC含量分别为36.0%、31.3%和43.5%。与已报道的叶绿体序列进行系统发育分析表明，Luferov 1997与Steud. 1841密切相关，它们都属于DC. 1817的某一分类群。这些数据将为Luferov 1997的进化和保护提供重要资源。
