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Multiple Independent Origins of Mitochondrial Control Region Duplications in the Order Psittaciformes

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dc.contributor.author Schirtzinger, Erin E. en
dc.contributor.author Tavares, Erika S. en
dc.contributor.author Gonzales, Lauren A. en
dc.contributor.author Eberhard, Jessica R. en
dc.contributor.author Miyaki, Cristina Y. en
dc.contributor.author Sanchez, Juan J. en
dc.contributor.author Hernandez, Alexis en
dc.contributor.author Müeller, Heinrich en
dc.contributor.author Graves, Gary R. en
dc.contributor.author Fleischer, Robert C. en
dc.contributor.author Wright, Timothy F. en
dc.date.accessioned 2012-07-02T14:38:31Z
dc.date.available 2012-07-02T14:38:31Z
dc.date.issued 2012
dc.identifier.citation Schirtzinger, Erin E., Tavares, Erika S., Gonzales, Lauren A., Eberhard, Jessica R., Miyaki, Cristina Y., Sanchez, Juan J., Hernandez, Alexis, Müeller, Heinrich, Graves, Gary R., Fleischer, Robert C., and Wright, Timothy F. 2012. "<a href="https://repository.si.edu/handle/10088/18562">Multiple Independent Origins of Mitochondrial Control Region Duplications in the Order Psittaciformes</a>." <em>Molecular phylogenetics and evolution</em>. 64 (2):342&ndash;356. <a href="https://doi.org/10.1016/j.ympev.2012.04.009">https://doi.org/10.1016/j.ympev.2012.04.009</a> en
dc.identifier.issn 1055-7903
dc.identifier.uri http://hdl.handle.net/10088/18562
dc.description.abstract Mitochondrial genomes are generally thought to be under selection for compactness, due to their small size, consistent gene content, and a lack of introns or intergenic spacers. As more animal mitochondrial genomes are fully sequenced, rearrangements and partial duplications are being identified with increasing frequency, particularly in birds (Class Aves). In this study, we investigate the evolutionary history of mitochondrial control region states within the avian order Psittaciformes (parrots and cockatoos). To this aim, we reconstructed a comprehensive multi-locus phylogeny of parrots, used PCR of three diagnostic fragments to classify the mitochondrial control region state as single or duplicated, and mapped these states onto the phylogeny. We further sequenced 44 selected species to validate these inferences of control region state. Ancestral state reconstruction using a range of weighting schemes identified six independent origins of mitochondrial control region duplications within Psittaciformes. Analysis of sequence data shows that varying levels of mitochondrial gene and tRNA homology and degradation are present within a given clade exhibiting duplications. Levels of divergence between control regions within an individual vary from 0-10.9% with the differences occurring mainly between 51 and 225 nucleotides 3 of the goose hairpin in domain I. Further investigations into the fates of duplicated genes, the potential costs and benefits of having a second control region, and the complex relationship between evolutionary rates, selection, and time since duplication are needed to fully explain these patterns in the mitochondrial genome. en
dc.relation.ispartof Molecular phylogenetics and evolution en
dc.title Multiple Independent Origins of Mitochondrial Control Region Duplications in the Order Psittaciformes en
dc.type Journal Article en
dc.identifier.srbnumber 111395
dc.identifier.doi 10.1016/j.ympev.2012.04.009
rft.jtitle Molecular phylogenetics and evolution
rft.volume 64
rft.issue 2
rft.spage 342
rft.epage 356
dc.description.SIUnit Peer-reviewed en
dc.description.SIUnit NH-Vertebrate Zoology en
dc.description.SIUnit NMNH en
dc.description.SIUnit NZP en
dc.citation.spage 342
dc.citation.epage 356

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