Mitochondrial DNA is a useful molecular marker for phylogenetic and evolutionary analysis. In the current study, we determined the complete mitochondrial genome of Eophona personata, the Japanese Grosbeak, and the phylogenetic relationships of E. personata and 16 other species of the family Fringillidae based on the sequences of 12 mitochondrial protein-coding genes. The mitochondrial genome of E. personata consists of 16,771 base pairs, and contains 13 protein-coding genes, 22 transfer RNA (tRNA) genes, 2 ribosomal RNA (rRNA) genes, and one control region. Analysis of the base composition revealed an A+T bias, a positive AT skew and a negative GC skew. The mitochondrial gene order and arrangement in E. personata was similar to the typical avian mitochondrial gene arrangement. Phylogenetic analysis of 17 species of Fringillidae, based on Bayesian inference and Maximum Likelihood (ML) estimation, showed that the genera Coccothraustes and Hesperiphona are closely related to the genus Eophona, and further showed a sister-group relationship of E. personata and E. migratoria.

中文翻译：

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日本斑喙雀（Eophona personata）线粒体基因组的序列和组织以及燕雀科的系统发育关系

线粒体 DNA 是用于系统发育和进化分析的有用分子标记。在当前的研究中，我们根据12个线粒体蛋白编码基因的序列确定了Eophona personata、日本大嘴雀的完整线粒体基因组，以及Eophona personata和燕雀科其他16个物种的系统发育关系。E. personata 的线粒体基因组由 16,771 个碱基对组成，包含 13 个蛋白质编码基因、22 个转移 RNA (tRNA) 基因、2 个核糖体 RNA (rRNA) 基因和 1 个控制区。碱基组成分析揭示了 A+T 偏差、正 AT 偏斜和负 GC 偏斜。E. personata 的线粒体基因顺序和排列与典型的鸟类线粒体基因排列相似。基于贝叶斯推理和最大似然估计，对17种燕雀科物种进行系统发育分析，结果表明燕雀属和燕雀属与燕雀属关系密切，并进一步表明燕雀属和燕雀属是姐妹群关系。迁徙。