Abstract

Ulmus parvifolia is a promising tree species for landscaping. In this study, the complete genome of U. parvifolia was reported using next-generation sequencing technology. The chloroplast genome was a circular double-stranded DNA molecule with 159,182 bp in length. It contained a large single copy (LSC) region of 87,838 bp, a small single copy (SSC) region of 18,750 bp, and two inverted repeat (IRa and IRb) regions of 26,297 bp each, which exhibited a typical quadripartite structure. A total of 133 genes were identified, including 84 protein-coding genes, 41 tRNA genes, and eight rRNA genes. The overall GC content in the chloroplast genome was 35.59%. Phylogenetic analysis indicated that U. parvifolia, as a representative of Sect. Microptelea within the Ulmus genus, is sister to the species of Sect. Ulmus.

摘要

榆树是美化前景的树种。在这项研究中，报告了使用下一代测序技术的小果蝇的完整基因组。叶绿体基因组是环状双链DNA分子，长度为159,182 bp。它包含一个87,838 bp的大单拷贝（LSC）区域，一个18,750 bp的小单拷贝（SSC）区域，以及每个分别为26,297 bp的两个反向重复序列（IRa和IRb）区域，表现出典型的四方结构。共鉴定出133个基因，包括84个蛋白质编码基因，41个tRNA基因和8个rRNA基因。叶绿体基因组中的总GC含量为35.59％。系统发育分析表明，U. parvifolia，作为一个代表。小翼虫在榆属中，是该种的姐妹。乌尔姆斯。