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Mosaic Origins of a Complex Chimeric Mitochondrial Gene in Silene vulgaris
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SYSNO ASEP 0380745 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Mosaic Origins of a Complex Chimeric Mitochondrial Gene in Silene vulgaris Author(s) Štorchová, Helena (UEB-Q) RID, ORCID
Müller, Karel (UEB-Q) RID, ORCID
Lau, S. (US)
Olson, M. S. (US)Source Title PLoS ONE. - : Public Library of Science - ISSN 1932-6203
Roč. 7, č. 2 (2012), e30401--Number of pages 10 s. Language eng - English Country US - United States Keywords CYTOPLASMIC MALE-STERILITY ; OPEN READING FRAME ; COMPLETE NUCLEOTIDE-SEQUENCE Subject RIV EB - Genetics ; Molecular Biology R&D Projects GA521/09/0261 GA ČR - Czech Science Foundation (CSF) LC06004 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ME09035 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000302918500009 DOI 10.1371/journal.pone.0030401 Annotation Chimeric genes are significant sources of evolutionary innovation that are normally created when portions of two or more protein coding regions fuse to form a new open reading frame. In plant mitochondria astonishingly high numbers of different novel chimeric genes have been reported, where they are generated through processes of rearrangement and recombination. Nonetheless, because most studies do not find or report nucleotide variation within the same chimeric gene, evolution after the origination of these chimeric genes remains unstudied. Here we identify two alleles of a complex chimera in Silene vulgaris that are divergent in nucleotide sequence, genomic position relative to other mitochondrial genes, and expression patterns. Structural patterns suggest a history partially influenced by gene conversion between the chimeric gene and functional copies of subunit 1 of the mitochondrial ATP synthase gene (atp1). We identified small repeat structures within the chimeras that are likely recombination sites allowing generation of the chimera. These results establish the potential for chimeric gene divergence in different plant mitochondrial lineages within the same species. This result contrasts with the absence of diversity within mitochondrial chimeras found in crop species. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2013
Number of the records: 1