Abstract

Bromus catharticus Vahl. belongs to the Pooideae subfamily of Poaceae. In this study, we sequenced and assembled the complete chloroplast genome of B. catharticus. The complete chloroplast genome was 134,718 bp in size, including a large single-copy region of 80,540 bp, a small single-copy region of 11,806 bp and a pair of reverse repeats of 21,186 bp in size. The annotation of B. catharticus indicates that it contained 89 protein-coding genes, 47 tRNA genes and eight rRNA genes. Our phylogenetic analysis of all protein-coding genes of the 36 grass complete chroloplast genomes using Cyperus rotundus as outgroup showed that B. catharticus is closely related to the Koeleria and Avena species to form the Pooideae lineage of the grass family.

摘要

Bromus catharticus Vahl。属于禾本科的禾本科亚科。在这项研究中，我们测序并组装了B. catharticus的完整叶绿体基因组。完整的叶绿体基因组大小为 134,718 bp，包括一个 80,540 bp 的大单拷贝区域、一个 11,806 bp 的小单拷贝区域和一对大小为 21,186 bp 的反向重复序列。B. catharticus的注释表明它含有89个蛋白质编码基因、47个tRNA基因和8个rRNA基因。我们使用香附作为外群对 36 个草完整叶绿体基因组的所有蛋白质编码基因进行的系统发育分析表明B. catharticus与Koeleria和Avena密切相关 物种形成草科的 Pooideae 谱系。