Dai Wentai, Li Shiqi, Gao Xinfen, Xu Bo
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, PR China.
College of Life Sciences, University of Chinese Academy of Sciences, Beijing, PR China.
Mitochondrial DNA B Resour. 2020 Jan 10;5(1):470-471. doi: 10.1080/23802359.2019.1704647.
is a critically endangered maple confined to the valley of Yalong River in Southwest China. The whole chloroplast genome of was 156,862 bp in length with a typical quadripartite structure, containing a large single-copy (LSC) region of 85,292 bp, a small single-copy (SSC) region of 18,146 bp, and a pair of inverted repeat (IR) regions of 26,712 bp separated among them. Totally 137 unique genes were predicted, comprising 89 protein-coding genes, 39 tRNA genes, and 8 rRNA genes (4 rRNA types). The phylogenetic analysis showed that was resolved as sister to the clade containing and This study reported the first complete chloroplast genome sequences of and reconstructed a phylogeny tree based on 16 Sapindaceae species, which may provide new insight into phylogenetic studies of Sapindaceae and further conservation strategies for .
是一种极度濒危的枫树，仅分布于中国西南部的雅砻江流域。其叶绿体基因组全长156,862 bp，具有典型的四分体结构，包含一个85,292 bp的大单拷贝（LSC）区域、一个18,146 bp的小单拷贝（SSC）区域以及一对26,712 bp的反向重复（IR）区域。共预测到137个独特基因，包括89个蛋白质编码基因、39个tRNA基因和8个rRNA基因（4种rRNA类型）。系统发育分析表明， 被确定为包含 和 的分支的姐妹分支。本研究报道了 的首个完整叶绿体基因组序列，并基于16种无患子科物种构建了系统发育树，这可能为无患子科的系统发育研究以及 进一步的保护策略提供新的见解。
