@article {9730,
	title = {Not Frozen in the Ice: Large and Dynamic Rearrangements in the Mitochondrial Genomes of the Antarctic Fish},
	journal = {Genome Biology and Evolution},
	volume = {13},
	year = {2021},
	month = {2021 Mar 01},
	abstract = {<p>The vertebrate mitochondrial genomes generally present a typical gene order. Exceptions are uncommon and important to study the genetic mechanisms of gene order rearrangements and their consequences on phylogenetic output and mitochondrial function. Antarctic notothenioid fish carry some peculiar rearrangements of the mitochondrial gene order. In this first systematic study of 28 species, we analyzed known and undescribed mitochondrial genome rearrangements for a total of eight different gene orders within the notothenioid fish. Our reconstructions suggest that transpositions, duplications, and inversion of multiple genes are the most likely mechanisms of rearrangement in notothenioid mitochondrial genomes. In Trematominae, we documented an extremely rare inversion of a large genomic segment of 5,300 bp that partially affected the gene compositional bias but not the phylogenetic output. The genomic region delimited by nad5 and trnF, close to the area of the Control Region, was identified as the hot spot of variation in Antarctic fish mitochondrial genomes. Analyzing the sequence of several intergenic spacers and mapping the arrangements on a newly generated phylogeny showed that the entire history of the Antarctic notothenioids is characterized by multiple, relatively rapid, events of disruption of the gene order. We hypothesized that a pre-existing genomic flexibility of the ancestor of the Antarctic notothenioids may have generated a precondition for gene order rearrangement, and the pressure of purifying selection could have worked for a rapid restoration of the mitochondrial functionality and compactness after each event of rearrangement.</p>
},
	keywords = {Animals, Antarctic Regions, Evolution, Molecular, Fishes, Freezing, Gene Order, Gene Rearrangement, Genes, Mitochondrial, Genome, Mitochondrial, Genomics, Ice, Models, Genetic, Phylogeny, Vertebrates},
	issn = {1759-6653},
	doi = {10.1093/gbe/evab017},
	url = {https://doi.org/10.1093/gbe/evab017},
	author = {Papetti, Chiara and Babbucci, Massimiliano and Dettai, Agn{\`e}s and Basso, Andrea and Lucassen, Magnus and Harms, Lars and C{\'e}line Bonillo and Heindler, Franz Maximilian and Patarnello, Tomaso and Negrisolo, Enrico}
}
@article {9732,
	title = {Raising names from the dead: A time-calibrated phylogeny of frog shells (Bursidae, Tonnoidea, Gastropoda) using mitogenomic data.},
	journal = {Mol Phylogenet Evol},
	volume = {156},
	year = {2021},
	month = {2021 Mar},
	pages = {107040},
	abstract = {<p>With 59 Recent species, Bursidae, known as {\guillemotleft}frog shells{\guillemotright}, are a small but widely distributed group of tropical and subtropical gastropods that are most diverse in the Indo-West Pacific. The present study is aimed at reconstructing phylogenetic relationships of bursid gastropods based on extensive and representative taxon sampling. Five genetic markers (cytochrome c oxidase subunit I (cox1), 16\&nbsp;s and 12\&nbsp;s rRNA mitochondrial genes, 28\&nbsp;s rRNA and Histone H3 nuclear gene) were sequenced for over 30 species in every known genus but Crossata. Furthermore, we sequenced the complete mt-genome of 9 species (10 specimens) (Aspa marginata, Marsupina bufo, Korrigania quirihorai, Korrigania fijiensis, Tutufa rubeta, Bursa lamarckii, Lampasopsis rhodostoma (twice), Bufonaria perelegans and Bursa aff. tuberosissima). Our analysis recovered Bursidae as a monophyletic group, whereas the genus Bursa was found to be polyphyletic. The genera Talisman and Dulcerana are resurrected and the genera Alanbeuella gen. nov. and Korrigania gen. nov. are described. Dating analysis using 21 extinct taxa for node and simplified tip calibrations was performed, showing a diversification of the group in two phases. Diversification may be linked to tectonic events leading to biodiversity relocation from the western Tethys toward the Indo-Pacific.</p>
},
	keywords = {Animals, Bayes Theorem, Calibration, Fossils, Gastropoda, Genes, Mitochondrial, Genome, Mitochondrial, Phylogeny, Sequence Analysis, DNA, Time Factors},
	issn = {1095-9513},
	doi = {10.1016/j.ympev.2020.107040},
	author = {Sanders, Malcolm T and Merle, Didier and Laurin, Michel and C{\'e}line Bonillo and Puillandre, Nicolas}
}
