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The Organellar Genomes of Chromera and Vitrella, the Phototrophic Relatives of Apicomplexan Parasites
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SYSNO ASEP 0454774 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The Organellar Genomes of Chromera and Vitrella, the Phototrophic Relatives of Apicomplexan Parasites Tvůrce(i) Oborník, Miroslav (MBU-M) RID
Lukeš, J. (CZ)Zdroj.dok. Annual Review of Microbiology - ISSN 0066-4227
Roč. 69, č. 2015 (2015), s. 129-144Poč.str. 16 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova organellar genomes ; mitochondrion ; plastid Vědní obor RIV EE - Mikrobiologie, virologie CEP GBP501/12/G055 GA ČR - Grantová agentura ČR ED2.1.00/03.0110 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora MBU-M - RVO:61388971 UT WOS 000363614100007 DOI 10.1146/annurev-micro-091014-104449 Anotace Apicomplexa are known to contain greatly reduced organellar genomes. Their mitochondria] genome carries only three protein-coding genes, and their plastid genome is reduced to a 35-kb-long circle. The discovery of coral-endosymbiotic algae Chromera velia and Vitrella brassicaformis, which share a common ancestry with Apicomplexa, provided an opportunity to study possibly ancestral forms of organellar genomes, a unique glimpse into the evolutionary history of apicomplexan parasites. The structurally similar mitochondrial genomes of Chromera and Vitrella differ in gene content, which is reflected in the composition of their respiratory chains. Thus, Chromera lacks respiratory complexes I and III, whereas Vitrella and apicomplexan parasites are missing only complex I. Plastid genomes differ substantially between these algae, particularly in structure: the Chromera plastid genome is a linear, 120-kb molecule with large and divergent genes, whereas the plastid genome of Vitrella is a highly compact circle that is only 85 kb long but nonetheless contains more genes than that of Chromera. It appears that organellar genomes have already been reduced in free-living phototrophic ancestors of apicomplexan parasites, and such reduction is not associated with parasitism. Pracoviště Mikrobiologický ústav Kontakt Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Rok sběru 2016
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