Genomics of the critically endangered monotypic genus Sinopora: the plastome of S. hongkongensis (Lauraceae)

Angelo Damian Armijos Carrion; Damien Daniel Hinsinger; Joeri Sergej Strijk

doi:10.1080/23802359.2019.1703590

Genomics of the critically endangered monotypic genus Sinopora: the plastome of S. hongkongensis (Lauraceae)

Mitochondrial DNA B Resour. 2020 Jan 7;5(1):379-381. doi: 10.1080/23802359.2019.1703590.

Authors

Angelo Damian Armijos Carrion¹, Damien Daniel Hinsinger^{1

2}, Joeri Sergej Strijk^{1

2

3}

Affiliations

¹ Biodiversity Genomics Team, Plant Ecophysiology and Evolution Group, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, China.
² Alliance for Conservation Tree Genomics, Pha Tad Ke Botanical Garden, Luang Prabang, Laos.
³ State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning, China.

Abstract

Sinopora hongkongensis is a critically endangered endemic tree species restricted to Hong Kong. Here we report its plastome sequence. The S. hongkongensis plastome was 158,612 bp in length, with a large single-copy (LSC) region of 89,405 bp and a small single-copy (SSC) region of 18,205 bp, separated by two inverted repeat (IR) regions of 25,498 bp. It contained 126 genes, including 89 coding genes, 29 tRNA genes, and 8 rRNA genes. The overall GC content was 39.0%, and 43.0%, 37.7%, and 34.0%, in the IRs, LSC, and SSC regions, respectively. A phylogenetic analysis combining a subset of Lauraceae plastomes with closely related outgroup families confirms the placement of S. hongkongensis in Lauraceae and explores relationships with other genera in the family.

Keywords: Critically Endangered; Lauraceae; Sinopora hongkongensis; complete chloroplast genome; genomics.

Grants and funding

This work was supported by grants from the provincial government of Guangxi (‘100 Talents’ Program; recruitment of overseas talents for colleges and universities in Guangxi) to J.S.S., by grants from the China Postdoctoral Science Foundation (No. 2015M582481 and 2016T90822) to D.D.H., and by funding from the Chinese Scholarship Council (No. 2017DFH011225) to A.D.A.C.