17373660

Source:http://linkedlifedata.com/resource/pubmed/id/17373660

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0015219, umls-concept:C0017428, umls-concept:C0439659, umls-concept:C0542341, umls-concept:C0678594, umls-concept:C2246396
pubmed:issue	4
pubmed:dateCreated	2007-3-27
pubmed:abstractText	The cryptomonads and chlorarachniophytes are two unicellular algal lineages with complex cellular structures and fascinating evolutionary histories. Both groups acquired their photosynthetic abilities through the assimilation of eukaryotic endosymbionts. As a result, they possess two distinct cytosolic compartments and four genomes--two nuclear genomes, an endosymbiont-derived plastid genome and a mitochondrial genome derived from the host cell. Like mitochondrial and plastid genomes, the genome of the endosymbiont nucleus, or 'nucleomorph', of cryptomonad and chlorarachniophyte cells has been greatly reduced through the combined effects of gene loss and intracellular gene transfer. This article focuses on the structure, function, origin and evolution of cryptomonad and chlorarachniophyte nucleomorph genomes in light of recent comparisons of genome sequence data from both groups. It is now possible to speculate on the reasons that nucleomorphs persist in cryptomonads and chlorarachniophytes but have been lost in all other algae with plastids of secondary endosymbiotic origin.
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/8510851
pubmed:citationSubset	IM
pubmed:status	MEDLINE
pubmed:month	Apr
pubmed:issn	0265-9247
pubmed:author	pubmed-author:ArchibaldJohn MJM
pubmed:copyrightInfo	(c) 2007 Wiley Periodicals, Inc.
pubmed:issnType	Print
pubmed:volume	29
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	392-402
pubmed:meshHeading	pubmed-meshheading:17373660-Animals, pubmed-meshheading:17373660-Cell Nucleus, pubmed-meshheading:17373660-Evolution, Molecular, pubmed-meshheading:17373660-Genome, pubmed-meshheading:17373660-Genomic Islands, pubmed-meshheading:17373660-Models, Genetic
pubmed:year	2007
pubmed:articleTitle	Nucleomorph genomes: structure, function, origin and evolution.
pubmed:affiliation	The Canadian Institute for Advanced Research, Program in Evolutionary Biology, Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, B3H 1X5, Canada. john.archibald@dal.ca
pubmed:publicationType	Journal Article, Research Support, Non-U.S. Gov't