Chloroplast genomes of seven species of Coryloideae (Betulaceae): structures and comparative analysis

文献类型： 外文期刊

第一作者： Hu, Guanglong

作者： Hu, Guanglong;Cheng, Lili;Huang, Wugang;Cao, Qingchang;Lan, Yanping;Hu, Guanglong;Cheng, Lili;Huang, Wugang;Cao, Qingchang;Lan, Yanping;Zhou, Lei;Jia, Wenshen

作者机构：

关键词： Corylus; Coryloideae; chloroplast genome; Illumina sequencing; phylogenetic relationship

期刊名称：GENOME （ 影响因子：2.166； 五年影响因子：2.474 ）

ISSN： 0831-2796

年卷期： 2020 年 63 卷 7 期

页码：

收录情况： SCI

摘要： Coryloideae is a subfamily in the family Betulaceae consisting of four extant genera: Carpinus, Corylus, Ostrya, and Ostryopsis. We sequenced the plastomes of six species of Corylus and one species of Ostryopsis for comparative and phylogenetic analyses. The plastomes are 159-160 kb long and possess typical quadripartite cp architecture. The plastomes show moderate divergence and conserved arrangement. Five mutational hotspots were identified by comparing the plastomes of seven species of Coryloideae: trnG-atpA, trnF-ndhJ, accD-psaI, ndhF-ccsA, and ycf1. We assembled the most complete phylogenomic tree for the family Betulaceae using 68 plastomes. Our cp genomic sequence phylogenetic analyses placed Carpinus, Ostrya, and Ostryopsis in a Glade together and left Coryius in a separate Glade. Within the genus Corylus, these analyses indicate the existence of five subclades reflecting the phylogeographical relationships among the species. The data offer significant genetic information for the identification of species of the Coryloideae, taxonomic and phylogenetic studies, and molecular breeding.

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