We reported the sequence and characteristics of the complete mitochondrial genome of an ecologically important stingless bee, Lepidotrigona flavibasis (Hymenoptera: Meliponini), that has suffered serious population declines in recent years. A phylogenetic analysis based on complete mitogenomes indicated that L. flavibasis was first clustered with another Lepidotrigona species (L. terminata) and then joined with the other two Melipona (Hymenoptera: Meliponini) stingless bees (M. scutellaris and M. bicolor), forming a single clade of stingless bees. The stingless bee clade has a closer relationship with bumblebees (Bombus) (Hymenoptera: Apidae) than with honeybees (Apis) (Hymenoptera: Apidae). Extremely high gene rearrangements involving tRNAs, rRNAs, D-loop regions, and protein-coding genes were observed in the Lepidotrigona mitogenomes, suggesting an overactive evolutionary status in Lepidotrigona species. These mitogenomic organization variations could provide a good system with which to understand the evolutionary history of Meliponini.

中文翻译：

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Lepidotrigona flavibasis (Hymenoptera: Meliponini) 的完整线粒体基因组和 Lepidotrigona Mitogenomes 中的高基因重排

我们报道了一种生态上重要的无刺蜜蜂 Lepidotrigona flavibasis (Hymenoptera: Meliponini) 的完整线粒体基因组的序列和特征，该蜜蜂近年来种群数量严重下降。基于完整的有丝分裂基因组的系统发育分析表明，L. flavibasis 首先与另一种 Lepidotrigona 物种 (L. terminata) 聚集，然后与另外两种 Melipona (Hymenoptera: Meliponini) 无刺蜜蜂 (M. scutellaris 和 M. bicolor) 结合，形成一个无刺蜜蜂的进化枝。无刺蜜蜂进化枝与大黄蜂（Bombus）（膜翅目：蜜蜂科）的关系比与蜜蜂（Apis）（膜翅目：蜜蜂科）的关系更密切。在 Lepidotrigona mitogenomes 中观察到涉及 tRNA、rRNA、D 环区域和蛋白质编码基因的极高基因重排，表明鳞翅目物种过度活跃的进化状态。这些有丝分裂组织变异可以提供一个很好的系统来了解Meliponini的进化历史。