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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
immunology and microbiology
Diversity of DNA 1: A satellite-like molecule associated with monopartite begomovirus-DNA β complexes
Virology, Volume 324, No. 2, Year 2004
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Description
DNA 1 components are satellite-like, single-stranded DNA molecules associated with begomoviruses (family Geminiviridae) that require the satellite molecule DNA β to induce authentic disease symptoms in some hosts. They have been shown to be present in the begomovirus-DNA β complexes causing cotton leaf curl disease (CLCuD) and okra leaf curl disease (OLCD) in Pakistan as well as Ageratum yellow vein disease (AYVD) in Singapore. We have cloned and sequenced a further 17 DNA 1 molecules from a diverse range of plant species and geographical origins. The analysis shows that DNA 1 components are associated with the majority of begomovirus-DNA β complexes, being absent from only two of the complexes examined, both of which have their origins in Far East Asia. The sequences showed a high level of conservation as well as a common organization consisting of a single open reading frame (ORF) in the virion sense, a region of sequence rich in adenine and a predicted hairpin structure. In phylogenetic analyses, there was some evidence of grouping of DNA 1 molecules according to geographic origin, but less evidence for grouping according to host plant origin. The possible origin and function of DNA 1 components are discussed in light of these findings. © 2004 Elsevier Inc. All rights reserved.
Authors & Co-Authors
Briddon, Rob William
United Kingdom, Norwich
John Innes Centre
Bull, Simon E.
United Kingdom, Norwich
John Innes Centre
Amin, Imran J.
Pakistan, Faisalabad
National Institute for Biotechnology and Genetic Engineering Pakistan
Mansoor, Shahid
Pakistan, Faisalabad
National Institute for Biotechnology and Genetic Engineering Pakistan
Bedford, Ian D.
United Kingdom, Norwich
John Innes Centre
Rishi, Narayan
India, Hisar
Ccs Haryana Agricultural University
Siwatch, Surender S.
India, Hisar
Ccs Haryana Agricultural University
Zafar, Yusuf
Pakistan, Faisalabad
National Institute for Biotechnology and Genetic Engineering Pakistan
Abdel-Salam, Aly Mohamed Mamoun
Egypt, Giza
Faculty of Agriculture
Markham, Peter G.
United Kingdom, Norwich
John Innes Centre
Statistics
Citations: 234
Authors: 10
Affiliations: 4
Identifiers
Doi:
10.1016/j.virol.2004.03.041
ISSN:
00426822
Research Areas
Genetics And Genomics