# The Complete Mitochondrial Genome of the Stingless Bee Meliplebeia beccarii (Hymenoptera: Apidae: Meliponini) and Insights into Unusual Gene Rearrangement

**Authors:** Shi-Jie Wang, Jiao Wu, Abebe Jenberie Wubie, Cheng-Ye Wang

PMC · DOI: 10.3390/ijms262110588 · 2025-10-30

## TL;DR

This paper reports the full mitochondrial genome of the Ethiopian stingless bee Meliplebeia beccarii and identifies unique gene rearrangements, offering insights into its evolution and conservation.

## Contribution

The study presents the first complete mitogenome of M. beccarii and reveals unusual gene rearrangements and structural features.

## Key findings

- The mitogenome is 15,458 bp with an A + T bias of 83.9%.
- Unique gene features include the absence of trnI, trnK, and trnA, and translocations of trnQ and trnT-trnP.
- Phylogenetic analysis places M. beccarii within the Apidae lineage.

## Abstract

The stingless bee Meliplebeia beccarii, endemic to Ethiopia, plays a crucial ecological and economic role through pollination and high-quality honey production. However, habitat degradation and anthropogenic pressures threaten its survival. In this study, we present the complete mitochondrial genome (mitogenome) of M. beccarii, revealing a compact structure of 15,458 bp with 13 protein-coding genes (PCGs), 19 tRNAs, and two rRNAs, characterized by an A + T bias (83.9%). Unique features include the absence of trnI, trnK, and trnA, translocation of trnQ and a novel inversion in the trnT-trnP combination. These findings highlight species-specific genomic adaptations. Phylogenetic analysis based on concatenated PCGs places M. beccarii within the Apidae lineage, contributing to a deeper understanding of stingless bee evolution. Our results underscore the utility of mitogenomic studies in biodiversity conservation and evolutionary biology, providing foundational insights for the management and preservation of M. beccarii.

## Linked entities

- **Genes:** TRNI (tRNA-Ile) [NCBI Gene 4565], TRNK (tRNA-Lys) [NCBI Gene 4566], TRNA (tRNA-Ala) [NCBI Gene 4553], TRNQ (tRNA-Gln) [NCBI Gene 4572], TRNT (tRNA-Thr) [NCBI Gene 4576], TRNP (tRNA-Pro) [NCBI Gene 4571]
- **Species:** Meliplebeia beccarii (taxon 597077), Hymenoptera (taxon 7399), Apidae (taxon 7458), Meliponini (taxon 83319)

## Full-text entities

- **Genes:** TRNK (tRNA-Lys) [NCBI Gene 4566] {aka MTTK}, TRNQ (tRNA-Gln) [NCBI Gene 4572] {aka MTTQ}, TRNG (tRNA-Gly) [NCBI Gene 4563] {aka MTTG}, TRNP (tRNA-Pro) [NCBI Gene 4571] {aka MTTP}, TRNT (tRNA-Thr) [NCBI Gene 4576] {aka MTTT}, TRNI (tRNA-Ile) [NCBI Gene 4565] {aka MTTI}
- **Species:** Scaptotrigona postica (stingless bee, species) [taxon 79011], Meliplebeia beccarii (species) [taxon 597077]

## Figures

5 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12610537/full.md

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Source: https://tomesphere.com/paper/PMC12610537