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Two events are responsible for an insertion in a paternally inherited mitochondrial genome of the mussel Mytilus galloprovincialis.

ABSTRACT: Frequent nonhomologous recombination has been previously postulated to explain the 1045-bp insertion in one mitochondrial sperm-transmitted haplotype of Mytilus galloprovincialis. Such recombination would lead to the disruption of gene order and so the existence of a specific mechanism for maintaining the same gene order in both mitochondrial genomes of Mytilus has been proposed. Here the simpler explanation of the observed structure, involving a tandem duplication and a deletion, is presented. Their occasional occurrence in Mytilus mtDNA proves the similarity, not the difference, between animals with and without DUI.

PROVIDER: S-EPMC1800603 | BioStudies |

REPOSITORIES: biostudies

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