Balanced Gene Losses, Duplications and Intensive Rearrangements Led to an Unusual Regularly Sized Genome in Arbutus unedo Chloroplasts
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Balanced Gene Losses, Duplications and Intensive Rearrangements Led to an Unusual Regularly Sized Genome in Arbutus unedo Chloroplasts

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Balanced Gene Losses, Duplications and Intensive Rearrangements Led to an Unusual Regularly Sized Genome in Arbutus unedo Chloroplasts

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dc.contributor.author Martínez Alberola, Fernando es_ES
dc.contributor.author Campo López, Eva María del es_ES
dc.contributor.author Lázaro Gimeno, David es_ES
dc.contributor.author Mezquita Claramonte, Sergio es_ES
dc.contributor.author Molins, Arantxa es_ES
dc.contributor.author Mateu Andrés, Isabel es_ES
dc.contributor.author Pedrola, Joan es_ES
dc.contributor.author Casano, Leonardo M. es_ES
dc.contributor.author Barreno Rodríguez, Eva es_ES
dc.date.accessioned 2015-06-18T12:29:22Z
dc.date.available 2015-06-18T12:29:22Z
dc.date.issued 2013 es_ES
dc.identifier.uri http://hdl.handle.net/10550/44482
dc.description.abstract Completely sequenced plastomes provide a valuable source of information about the duplication, loss, and transfer events of chloroplast genes and phylogenetic data for resolving relationships among major groups of plants. Moreover, they can also be useful for exploiting chloroplast genetic engineering technology. Ericales account for approximately six per cent of eudicot diversity with 11,545 species from which only three complete plastome sequences are currently available. With the aim of increasing the number of ericalean complete plastome sequences, and to open new perspectives in understanding Mediterranean plant adaptations, a genomic study on the basis of the complete chloroplast genome sequencing of Arbutus unedo and an updated phylogenomic analysis of Asteridae was implemented. The chloroplast genome of A. unedo shows extensive rearrangements but a medium size (150,897 nt) in comparison to most of angiosperms. A number of remarkable distinct features characterize the plastome of A. unedo: five-fold dismissing of the SSC region in relation to most angiosperms; complete loss or pseudogenization of a number of essential genes; duplication of the ndhH-D operon and its location within the two IRs; presence of large tandem repeats located near highly re-arranged regions and pseudogenes. All these features outline the primary evolutionary split between Ericaceae and other ericalean families. The newly sequenced plastome of A. unedo with the available asterid sequences allowed the resolution of some uncertainties in previous phylogenies of Asteridae. es_ES
dc.source PLoS ONE Vol. 8 Issue 11: es_ES
dc.title Balanced Gene Losses, Duplications and Intensive Rearrangements Led to an Unusual Regularly Sized Genome in Arbutus unedo Chloroplasts es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.identifier.doi 10.1371/journal.pone.0079685 es_ES
dc.identifier.idgrec 091869 es_ES
dc.identifier.idgrec 090569
dc.identifier.idgrec 090595

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