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Phycodnaviridae--large DNA algal viruses.
Arch Virol. 2002 Aug; 147(8):1479-516.AV

Abstract

Members and prospective members of the family Phycodnaviridae are large icosahedral, dsDNA (180 to 560 kb) viruses that infect eukaryotic algae. The genomes of two phycodnaviruses have been sequenced: the 331 kb genome of Paramecium bursaria chlorella virus (PBCV-1) and more recently, the 336 kb genome of the Ectocarpus siliculosus virus (EsV-1). EsV-1 has approximately 231 protein-encoding genes whereas, the slightly smaller PBCV-1 genome has 11 tRNA genes and approximately 375 protein-encoding genes. Surprisingly, the two viruses only have 33 genes in common, of which 17 have no counterparts in the databases. The low number of homologous genes between the two viruses can probably be attributed to their different life styles. PBCV-1 is a lytic virus that infects a unicellular, endosymbiotic freshwater green alga whereas, EsV-1 is a lysogenic virus that infects a free-living filamentous marine brown alga. Furthermore, accumulating evidence indicates that the phycodnaviruses and their genes are ancient, thus allowing significant differences to have evolved. This review briefly describes some of the biological properties of the phycodnaviruses, focusing on PBCV-1 and EsV-1, and then compares their genomes.

Authors+Show Affiliations

Nebraska Center for Virology and Department of Plant Pathology, University of Nebraska, Lincoln, NE, U.S.A.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, P.H.S.
Review

Language

eng

PubMed ID

12181671

Citation

Van Etten, J L., et al. "Phycodnaviridae--large DNA Algal Viruses." Archives of Virology, vol. 147, no. 8, 2002, pp. 1479-516.
Van Etten JL, Graves MV, Müller DG, et al. Phycodnaviridae--large DNA algal viruses. Arch Virol. 2002;147(8):1479-516.
Van Etten, J. L., Graves, M. V., Müller, D. G., Boland, W., & Delaroque, N. (2002). Phycodnaviridae--large DNA algal viruses. Archives of Virology, 147(8), 1479-516.
Van Etten JL, et al. Phycodnaviridae--large DNA Algal Viruses. Arch Virol. 2002;147(8):1479-516. PubMed PMID: 12181671.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phycodnaviridae--large DNA algal viruses. AU - Van Etten,J L, AU - Graves,M V, AU - Müller,D G, AU - Boland,W, AU - Delaroque,N, PY - 2002/8/16/pubmed PY - 2002/9/20/medline PY - 2002/8/16/entrez SP - 1479 EP - 516 JF - Archives of virology JO - Arch Virol VL - 147 IS - 8 N2 - Members and prospective members of the family Phycodnaviridae are large icosahedral, dsDNA (180 to 560 kb) viruses that infect eukaryotic algae. The genomes of two phycodnaviruses have been sequenced: the 331 kb genome of Paramecium bursaria chlorella virus (PBCV-1) and more recently, the 336 kb genome of the Ectocarpus siliculosus virus (EsV-1). EsV-1 has approximately 231 protein-encoding genes whereas, the slightly smaller PBCV-1 genome has 11 tRNA genes and approximately 375 protein-encoding genes. Surprisingly, the two viruses only have 33 genes in common, of which 17 have no counterparts in the databases. The low number of homologous genes between the two viruses can probably be attributed to their different life styles. PBCV-1 is a lytic virus that infects a unicellular, endosymbiotic freshwater green alga whereas, EsV-1 is a lysogenic virus that infects a free-living filamentous marine brown alga. Furthermore, accumulating evidence indicates that the phycodnaviruses and their genes are ancient, thus allowing significant differences to have evolved. This review briefly describes some of the biological properties of the phycodnaviruses, focusing on PBCV-1 and EsV-1, and then compares their genomes. SN - 0304-8608 UR - https://www.unboundmedicine.com/medline/citation/12181671/Phycodnaviridae__large_DNA_algal_viruses_ DB - PRIME DP - Unbound Medicine ER -