The plastid genome of Herpetospermum pedunculosum (Cucurbitaceae), an endangered traditional Tibetan medicinal herbs

Chengwang Wang; Xilong Wang; Tamdrin Tseringand; Yu Song; Rongjie Zhu

doi:10.1080/23802359.2019.1703603

The plastid genome of Herpetospermum pedunculosum (Cucurbitaceae), an endangered traditional Tibetan medicinal herbs

Mitochondrial DNA B Resour. 2020 Jan 10;5(1):495-497. doi: 10.1080/23802359.2019.1703603.

Authors

Chengwang Wang¹, Xilong Wang², Tamdrin Tseringand³, Yu Song⁴, Rongjie Zhu⁵

Affiliations

¹ School of Life Science, Nanchang University, Jiangxi, China.
² Tibet Plateau Institute of Biology, Xizang, China.
³ The Technological Developmnet Exchange Service Center of Linzhi, Xizang, China.
⁴ Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Yunnan, China.
⁵ Institute of Vegetable Sciences, Tibet Academy of Agricultural and Animal Husbandry Sciences, Xizang, China.

Abstract

Herpetospermum pedunculosum (Ser.) C. B. Clarke is an important traditional Tibetan medicinal plants in the genus of Herpetospermum, Cucurbitaceae. To better determine its phylogenetic location with respect to the other Cucurbitaceae species, the complete plastome of H. pedunculosum will be reported, which is the first species with plastid genome sequence in the genus of Herpetospermum. Its whole genome is 156,531 bp in length, consisting of a pair of inverted repeats (IRs) of 26,147 bp, one large single-copy (LSC) region of 85,878 bp, and one small single-copy (SSC) region of 18,359 bp. There are 128 genes, including 83 protein-coding genes, 36 transfer RNA (tRNA) genes, and 8 ribosomal RNA (rRNA) genes in the plastome. Phylogenetic analysis based on 13 complete plastomes of Cucurbitaceae species showed sisterhood of H. pedunculosum and a clade containing Trichosanthes kirilowii and Hodgsonia macrocarpa, suggesting the close relationship between tribe Schizopeponeae and tribe Sicyoeae in the family Cucurbitaceae.

Keywords: Herpetospermum pedunculosum; chloroplast genome; phylogenetic analysis Cucurbitaceae.

Grants and funding

This research was supported by the Agricultural Technology Experiment Demonstration and Service Support Project of Ministry of Agriculture and Rural Affairs [151721301064072713], and the Science and Technology Plan Project of Xizang Autonomous Region of China [XZ2019ZRG189, XZ201901NB10].