文献类型：期刊文献

英文题名：Phylogenetic analysis of the complete chloroplast genome of Betula hainanensis (Betulaceae)

作者：Yin, Mingyu[1,2] Guo, Junjie[1] Zeng, Jie[1]

第一作者：Yin, Mingyu

通信作者：Zeng, J[1]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China;[2]Nanjing Forestry Univ, Forestry Coll, Nanjing, Peoples R China

年份：2020

卷号：5

期号：2

起止页码：2018-2019

外文期刊名：MITOCHONDRIAL DNA PART B-RESOURCES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000533875800001)】；

基金：This work was supported by the National Natural Science Foundation of China [31972953] and National Nonprofit Institute Research Grant of Chinese Academy of Forestry, China [CAFYBB2017SY019].

语种：英文

外文关键词：Betula hainanensis; chloroplast genome; Betulaceae; phylogenetic analysis

摘要：Betula hainanensis (Betulaceae) is a new reported species of the genus Betula, which is distributed in tropical, montane rain forests and evergreen broad-leaved forests in the Hainan Island, China. The complete chloroplast genome of B. hainanensis is a typical quadripartite cycle with 161,189 bp length, including a large single-copy region (LSC, 89,841 bp), a small single-copy region (SSC, 19,318 bp), and a pair of 26,015 bp inverted repeat regions (IRs). The circular genome contained 129 genes, including 84 protein-coding genes, 8 ribosomal RNA genes, and 37 tRNA genes. The overall GC content of the circular genome was 35.9%. A maximum likelihood (ML) tree showed a close relationship between B. hainanensis and B. alnoides.