Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of State Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China.
College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China.
Genes (Basel). 2024 Feb 18;15(2):254. doi: 10.3390/genes15020254.
This study presents the complete mitochondrial genome (mitogenome) of , which is the first mitogenome of the genus . The mitogenome is a circular molecule with a length of 15,081 bp. The proportion of adenine and thymine (A + T) was 69.25%. The gene ND4L used TGA as the initiation codon, while the other PCGs utilized ATN (A, T, G, C) as the initiation codons. More than half of the PCGs used T as an incomplete termination codon. The transcription direction of the mitogenome matched , in contrast to most millipedes. Novel rearrangements were found in the mitogenome: trnQ -trnC and trnL1- trnP underwent short-distance translocations and the gene block rrnS-rrnL-ND1 moved to a position between ND4 and ND5, resulting in the formation of a novel gene order. The phylogenetic analysis showed that is most closely related to , followed by . These findings enhance our understanding of the rearrangement and evolution of Diplopoda mitogenomes.
本研究首次报道了 的完整线粒体基因组（mitogenome）。该线粒体基因组为环状分子，长度为 15081bp。A+T 的比例为 69.25%。ND4L 基因使用 TGA 作为起始密码子，而其他 PCGs 使用 ATN（A、T、G、C）作为起始密码子。超过一半的 PCGs 使用 T 作为不完全终止密码子。 线粒体基因组的转录方向与大多数倍足纲动物相反。在 线粒体基因组中发现了新的重排：trnQ-trnC 和 trnL1-trnP 发生了短距离易位，rrnS-rrnL-ND1 基因块移动到 ND4 和 ND5 之间的位置，形成了一个新的基因顺序。系统发育分析表明， 与 关系最密切，其次是 。这些发现增进了我们对倍足纲动物线粒体基因组重排和进化的理解。
