The complete plastome sequence of Tanakaea radicans (Saxifragaceae) and its phylogenetic analysis

Abstract

Tanakaea radicans is classified in the monotypic genus Tanakaea in the Saxifragaceae. It is a small, evergreen plant with a disjunct distribution in Japan and China. Here, we report and characterize for the first time the complete plastid genome sequence of T. radicans. The chloroplast genome is 155,265 bp in length and contains a pair of inverted repeats (25,794 bp) separated by a large single copy (86,289 bp) and a small single copy (17,388 bp). A total of 113 unique genes, including 79 protein-coding, 30 tRNA, and four rRNA genes, were annotated. Phylogenetic analysis showed that T. radicans was sister to Leptarrhena pyrolifolia within Huecheroids linage of Saxifragaceae.

The complete chloroplast genome sequence of Heteropolygonatum ginfushanicum (Asparagaceae) and phylogenetic analysis

“…The overall GC content is 37.60%, while the corresponding value in the LSC, SSC, and IR regions is 35.61%, 31.40%, and 42.99%, respectively ( Figure 1 ). As reported in other angiosperm (Mehmood et al 2019 , 2020a , b ; Su et al 2019 , 2021 ), the IR regions have the highest GC content due to the presence of rRNAs containing high GC content. Analysis of boundaries between the IRs and single copy regions of H. ginfushanicum find that the rps19 gene is 17 bp away from the LSC/IRb junction; The ndhF crosses the IRb/SSC boundary with a length of 29 bp in IRb and 2,182 bp in SSC and the ycf1 gene spans the SSC/IRa boundary with a length of 890 bp in SSC which results in a pseudogene ( ψycf1 ) at the IRa/SSC border ( Figure 2 ).…”

Characterization of the complete plastid genome and phylogenetic implication of Micranthes octopetala (Nakai) Y.I.Kim & Y.D.Kim (Saxifragaceae), endemic to Korea

“… 2020 ), tanakaea radicans MW300581 (Su et al. 2021 ), boykinia aconitifolia MN496058 (Folk et al. 2020 ), astilbe koreana MK990830, Saxifraga aristulata ON720851 (Yuan et al.…”