Mitonuclear Discordance of Beetles Shaped by Incomplete Lineage Sorting and Introgression Under Loose Interaction Mechanism.

ABSTRACT: Metazoan oxidative phosphorylation (OXPHOS) complexes are composed of subunits encoded by mitochondrial and nuclear genes, requiring continuous mitonuclear coevolution to ensure functional compatibility. However, mitochondrial and nuclear genomes exhibit separate inheritance patterns, leading to their distinct or even conflicting evolutionary histories. This study aimed to analyse phylogenetic signals among mitochondrial genes, nuclear-encoded OXPHOS genes, and general nuclear genes across 53 beetle species. Two major cases of mitonuclear discordance were detected. The nuclear-encoded OXPHOS genes supported mitochondrial phylogenetic signals in noterids, indicating that in noterids the evolutionary history of OXPHOS complexes diverged from the phylogenetic history. Conversely, nuclear-enco

SUBMITTER: Zhao T 

PROVIDER: S-EPMC12659792 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature