AI Article Synopsis
- Helicoidea is a diverse group of land snails found globally, but there's limited knowledge about their mitochondrial genome evolution.
- The study sequenced two complete mitochondrial genomes from the Polygyridae family, marking the first such data from this group.
- The analysis revealed a genome size of 14,008 bp with typical metazoan genes, indicating four past mitochondrial rearrangements in Helicoidea, affecting both tRNA and protein coding genes.
Article Abstract
Helicoidea is a diverse group of land snails with a global distribution. While much is known regarding the relationships of helicoid taxa, comparatively little is known about the evolution of the mitochondrial genome in the superfamily. We sequenced two complete mitochondrial genomes from Perez, 2011 representing the first such data from the helicoid family Polygyridae, and used them in an evolutionary analysis of mitogenomic gene order. We found the mitochondrial genome of to be 14,008 bp in size, possessing the typical 37 metazoan genes. Multiple alternate stop codons are used, as are incomplete stop codons. Mitogenome size and nucleotide content is consistent with other helicoid species. Our analysis of gene order suggested that Helicoidea has undergone four mitochondrial rearrangements in the past. Two rearrangements were limited to tRNA genes only, and two involved protein coding genes.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5096375 | PMC |
| http://dx.doi.org/10.3897/zookeys.626.9633 | DOI Listing |
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