Banana contains a diverse array of endogenous badnaviruses

Geering, Andrew D. W., Olszewski, Neil E., Harper, Glyn, Lockhart, Benham E. L., Hull, Roger and Thomas, John E. (2005) Banana contains a diverse array of endogenous badnaviruses. Journal of General Virology, 86 2: 511-520. doi:10.1099/vir.0.80261-0

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Author Geering, Andrew D. W.
Olszewski, Neil E.
Harper, Glyn
Lockhart, Benham E. L.
Hull, Roger
Thomas, John E.
Title Banana contains a diverse array of endogenous badnaviruses
Journal name Journal of General Virology   Check publisher's open access policy
ISSN 0022-1317
1465-2099
Publication date 2005-02
Sub-type Article (original research)
DOI 10.1099/vir.0.80261-0
Volume 86
Issue 2
Start page 511
End page 520
Total pages 10
Place of publication Reading, United Kingdom
Publisher Society for General Microbiology
Language eng
Formatted abstract
Banana streak disease is caused by several distinct badnavirus species, one of which is Banana streak Obino l'Ewai virus. Banana streak Obino l'Ewai virus has severely hindered international banana (Musa spp.) breeding programmes, as new hybrids are frequently infected with this virus, curtailing any further exploitation. This infection is thought to arise from viral DNA integrated in the nuclear genome of Musa balbisiana (B genome), one of the wild species contributing to many of the banana cultivars currently grown. In order to determine whether the DNA of other badnavirus species is integrated in the Musa genome, PCR-amplified DNA fragments from Musa acuminata, M. balbisiana and Musa schizocarpa, as well as cultivars 'Obino l'Ewai' and 'Klue Tiparot', were cloned. In total, 103 clones were sequenced and all had similarity to open reading frame III in the badnavirus genome, although there was remarkable variation, with 36 distinct sequences being recognized with less than 85% nucleotide identity to each other. There was no commonality in the sequences amplified from M. acuminata and M. balbisiana, suggesting that integration occurred following the separation of these species. Analysis of rates of non-synonymous and synonymous substitution suggested that the integrated sequences evolved under a high degree of selective constraint as might be expected for a living badnavirus, and that each distinct sequence resulted from an independent integration event.
Keyword Integrated pararetroviral sequences
Streak badnavirus
Viral sequences
Virus
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Queensland Alliance for Agriculture and Food Innovation
 
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Created: Tue, 22 Feb 2011, 08:46:00 EST