Presence of multiple group I introns closely related to bacteria and fungi in plastid 23S rRNAs of lichen-forming Trebouxia
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Presence of multiple group I introns closely related to bacteria and fungi in plastid 23S rRNAs of lichen-forming Trebouxia

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Presence of multiple group I introns closely related to bacteria and fungi in plastid 23S rRNAs of lichen-forming Trebouxia

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dc.contributor.author del Campo López, Eva María
dc.contributor.author Casano, Leonardo M.
dc.contributor.author Gasulla Vidal, Francisco
dc.contributor.author Barreno Rodríguez, Eva
dc.date.accessioned 2010-05-14T10:32:34Z
dc.date.available 2010-05-14T10:32:34Z
dc.date.issued 2009
dc.identifier.uri http://hdl.handle.net/10550/2402
dc.description.abstract The chloroplast-encoded large subunit ribosomal RNA gene of several free-living green algae contains group I introns at Escherichia coli genic positions 1917, 1931, 1951, and 2449. Herein we report the presence of group I introns at these positions within the chloroplast-encoded large subunit ribosomal RNA gene of several lichen-forming green algae belonging to the Trebouxia genus. In contrast to the introns inserted at position 2449, all introns inserted at positions 1917, 1931, and 1951 contained LAGLIDADG homing endonuclease genes. Phylogenetic analyses show that: (i) introns inserted at positions 1917, 1931, and 1951 are closely related to introns located at homologous insertion sites in bacterial rDNA genes; and (ii) introns inserted at position 2449 are closely related to fungal introns located at homologous insertion sites in mitochondrial rDNA genes. The symbiogenetic thalli of some lichens are proposed as the likely setting of horizontal transfer of genetic material among distantly related organisms such as bacteria, fungi, and green algae. en
dc.language.iso en en
dc.relation http://www.im.microbios.org/1201/IM1201_0059.pdf en
dc.source Del Campo, Eva M.; Casano, Leonardo M.; Gasulla Vidal, Francisco; Barreno Rodriguez, M Eva. Presence of multiple group I introns closely related to bacteria and fungi in plastid 23S rRNAs of lichen-forming Trebouxia. En Int Microbiol 2009; 12(1):59-67 en
dc.subject Trebouxia ssp; Group I introns; Plastid 23S rRNA; Lichens; Horizontal transfer en
dc.title Presence of multiple group I introns closely related to bacteria and fungi in plastid 23S rRNAs of lichen-forming Trebouxia en
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::CIENCIAS DE LA VIDA::Microbiología en
dc.identifier.doi 10.2436/20.1501.01.82 en
dc.description.private Francisco.Gasulla@uv.es; Eva.Barreno@uv.es en

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