The complete plastome of Nannoglottis ravida, an extremely endangered species in the Qinghai-Tibet Plateau

Mitochondrial DNA B Resour. 2020 Nov 13;5(3):3727-3729. doi: 10.1080/23802359.2020.1834887.

Abstract

Nannoglottis ravida is an extremely endangered species in the Qinghai-Tibet Plateau. Based on the second-generation high-throughput genome sequencing, we assembled the plastome of this species. The length of the total plastome is 152,324 bp with a typical quadripartite structure including a large single-copy region of 83,708 bp, a small single-copy region of 29,882 bp and two reverse repeat regions of 19,367 bp respectively. A total of 131 genes were annotated including 85 protein-coding genes (PCG), 36 tRNA genes, 8 rRNA genes and 2 pseudogenes. The constructed phylogenetic tree with other species of two tribes Senecioneae and Astereae based on plastomes suggests that N. ravida has a close relationship with the Astereae, but diverged early from this tribe.

Keywords: Nannoglottis ravida; endangered species; phylogenetic relationship; plastome.

Grants and funding

This work was financially supported by the National Key Research and Development Program [2017YFC0505203] and Sichuan Provincial Department of Education.