The complete chloroplast genome sequence of a critically endangered orchid Paphiopedilum gratrixianum (Orchidaceae)

Chao Hu; Kai Jiang; Xinhua Zeng; Weichang Huang

doi:10.1080/23802359.2021.1891005

The complete chloroplast genome sequence of a critically endangered orchid Paphiopedilum gratrixianum (Orchidaceae)

Mitochondrial DNA B Resour. 2022 Apr 1;7(4):609-610. doi: 10.1080/23802359.2021.1891005. eCollection 2022.

Authors

Chao Hu¹, Kai Jiang¹, Xinhua Zeng¹, Weichang Huang¹

Affiliation

¹ Eastern China Conservation Centre for Wild Endangered Plant Resources, Shanghai Chenshan Botanical Garden, Shanghai, China.

Abstract

Paphiopedilum gratrixianum is a critically endangered orchid with extremely small populations and of great horticulture value. We assembled and annotated the complete chloroplast genome of P. gratrixianum in this study. The genome is 157,292 bp in length and 35.8% of the GC content. It encodes a total of 102 unique genes, including 68 protein-coding genes, 30 tRNA genes, and four rRNA genes. Phylogenetic analysis results strongly supported that it was closely related to P. tranlienianum. The complete chloroplast genome of P. gratrixianum (GenBank accession number: MW284890) can be useful for the evolutionary study in Orchidaceae.

Keywords: Paphiopedilum gratrixianum; Plastome; genome skimming; phylogenetic.

Grants and funding

This work was supported by a grant from the Science and Technology Commission Shanghai Municipality to Weichang Huang [19390743600] and project of Shanghai Landscaping and City Appearance Administrative Bureau to Chao Hu [G192424, G202401].