Abstract

Artocarpus gomezianus is a medicinal species native to Asia. To infer its phylogenetic relationship to the other Moraceae, the complete chloroplast genome of A. gomezianus was sequenced. The whole chloroplast genome is 160,743 bp in length, consisting of a pair of inverted repeat (IR) regions of 25,691 bp, one large single-copy (LSC) region of 89,241 bp, and one small singlecopy (SSC) region of 20,120 bp. The overall GC content of the complete chloroplast genome is 35.81%. Maximum likelihood analysis using 11 complete plastomes of the Moraceae and Cannabis sativa (Cannabaceae) designated as the outgroup, resolved A. gomezianus in a clade with A. petelotii and A. hypargyreus. These phylogenetic results are not consistent with previous findings based on nuclear loci in which A. gomezianus was grouped as a sister to a clade containing A. petelotii and A. hypargyreus. The complete chloroplast genome of A. gomezianus will provide a powerful tool to accelerate pharmacological development, systematics, and future phylogenetic studies in the Moraceae.

摘要

Artocarpus gomezianus是原产于亚洲的药用树种。为了推断其与其他桑科植物的系统发育关系，对A. gomezianus的完整叶绿体基因组进行了测序。整个叶绿体基因组的长度为 160,743 bp，由一对 25,691 bp 的反向重复 (IR) 区域、一个 89,241 bp 的大单拷贝 (LSC) 区域和一个 20,120 bp 的小单拷贝 (SSC) 区域组成。完整叶绿体基因组的总 GC 含量为 35.81%。使用指定为外群的桑科和大麻科 (Cannabaceae) 的11 个完整质体进行最大似然分析，解析了A. gomezianus与A. petelotii和A. hypargyreus的进化枝. 这些系统发育结果与基于核位点的先前发现不一致，其中A. gomezianus被归类为包含A. petelotii和A. hypargyreus的进化枝的姐妹。A. gomezianus的完整叶绿体基因组将为加速桑科的药理学开发、系统学和未来的系统发育研究提供强大的工具。