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

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

Chengwang Wang  1 , Xilong Wang  2 , Tamdrin Tseringand  3 , Yu Song  4 , Rongjie Zhu  5
Affiliations

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

Chengwang Wang et al. Mitochondrial DNA B Resour. .

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.

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Conflict of interest statement

No potential conflict of interest was reported by the authors.

Figures

Figure 1.
Figure 1.
The ML phylogenetic tree showing relationship between H. pedunculosum and 13 other species of Cucurbitaceae based on the complete plastid genomes catenated dataset. Numbers in each the node indicated the bootstrap support values.
See this image and copyright information in PMC

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