Yinran Huang, Xiaoxu Huang, Shuxiang Feng, Shufang Yan, Yongtan Li, Yichao Liu
Hebei Academic of Forestry and Grassland, Shijiazhuang, China.
Hebei Engineering Research Center for Trees Varieties, Shijiazhuang, China.
Mitochondrial DNA B Resour. 2020 Jan 24;5(1):792-793. doi: 10.1080/23802359.2020.1715280.
is a species of Sect. Chaetoptelea (Liemb.) S chneid in Ulmaceae, and it is an endangered wild plant listed in the second class of the Protected Plants in China. The complete chloroplast genome (cp) of was reported in this study. The result showed that the cp genome was 159,230 bp in length including a large single-copy (LSC) 87,718 bp and a small single-copy (SSC) 18,690 bp, which were separated by two inverted repeats (IRs) of 26,411 bp with the typical quadripartite structure, respectively. The genome encoded 132 genes, including 87 protein-coding genes, 37 tRNA genes, and eight rRNA genes. The GC content was 35.57%. Chloroplast sequences were used for constructing phylogenetic tree to determine the evolutionary status of . The maximum-likelihood phylogenetic analysis showed that was clustered with five other species, and the relationship between and was closest. The success of cp genome assembly of has laid a foundation for the study of chloroplast molecular biology and can effectively promote the study of genetic breeding and molecular evolution of .
是榆科翅子榆组（Liemb.）Schneid的一个物种，是中国国家重点二级保护野生植物。本研究报道了其完整的叶绿体基因组（cp）。结果表明，cp基因组长度为159,230 bp，包括一个87,718 bp的大单拷贝区（LSC）和一个18,690 bp的小单拷贝区（SSC），它们分别被两个26,411 bp的反向重复序列（IRs）隔开，具有典型的四分体结构。该基因组编码132个基因，包括87个蛋白质编码基因、37个tRNA基因和8个rRNA基因。GC含量为35.57%。利用叶绿体序列构建系统发育树以确定其进化地位。最大似然法系统发育分析表明，与其他五个物种聚在一起，且与关系最密切。的cp基因组组装成功为叶绿体分子生物学研究奠定了基础，并能有效促进其遗传育种和分子进化研究。
