The complete chloroplast genome of Acer catalpifolium (Sapindaceae), a rare and endangered plant in Southwest China

Abstract

Acer catalpifolium is a rare and endangered species in southwestern China. In this study, the complete chloroplast genome sequence of A. catalpifolium was characterized by de novo assembly using highthroughput sequencing. The length of the whole chloroplast genome was 156,225 bp, containing a large single copy region (LSC) of 85,976 bp and a small single copy region (SSC) of 18,066 bp, which were separated by a pair of 26,092 bp inverted repeat regions (IRs). The sequence contained 135 unique genes, including 40 tRNA, eight rRNA, and 87 protein-coding genes. The overall GC content of the chloroplast genome is 37.9% and those in the LSC, SSC, and IR regions are 36.1%, 32.2%, and 42.9%, respectively. The phylogenetic analysis based on reported chloroplast sequences of Sapindaceae showed that A. catalpifolium is sister to A. miaotaiense, and the genera of Acer and Dipteronia are closely related to Aesculus.

Survival strategy of the endangered tree Acer catalpifolium Rehd., based on 13C fractionation

“…A DNA sequencing study showed that A. catalpifolium is more closely related to Acer trees in the north of Sichuan Province (Wang et al, 2019). Compared with its deciduous broad-leaved relatives from the North, A. catalpifolium seems to be evolving to adapt to the warmer environment in Sichuan.…”

“…is a tree species native to China that is highly endangered. It belongs to the family Aceraceae and is closely related to Acer miaotaiense (Wang, He, Xu, Peng, & Zhao, 2019). At one time, it was believed that only 53 trees remained, and the species was listed in the “wild plants with extremely small populations (WPESP) rescue and protection plan” (State Forestry Administration of China, 2010).…”

Complete chloroplast genome and evolutionary analysis of Acer paihengii (Sapindales:Aceraceae)

“…catalpifolium NC_041080.1 (Wang et al. 2019 ), Acer tataricum subsp. ginnala MN790641.1 (Yang et al.…”