Abstract

Picea is a phylogenetically complicate genus with great economic and ecological values. Here, we determined the whole complete chloroplast genome of Picea schrenkiana to provide genomic information for phylogenetic analysis of the genus. The plastome of P. schrenkiana is 124,060 bp in size and contains 114 genes, including 74 protein-coding genes, 36 tRNA genes, and four rRNA genes. The overall GC content is 38.7%. Unlike the typical plastome with a conserved quadripartite structure, loss of inverted repeat regions is found in the chloroplast genome. The phylogenetic tree shows that monophyly of P. schrenkiana is well supported.

摘要

云杉属是一个系统发育复杂的属，具有很大的经济和生态价值。在这里，我们确定了云杉云杉的完整叶绿体完整基因组，以为该属的系统发育分析提供基因组信息。schrenkiana的质体为124,060 bp，包含114个基因，包括74个蛋白质编码基因，36个tRNA基因和4个rRNA基因。总GC含量为38.7％。与具有保守四方结构的典型质体组不同，在叶绿体基因组中发现了反向重复区域的丢失。系统发育树表明，对P. schrenkiana的单亲性得到了很好的支持。