Characterization and genetic status of Banana bunchy top virus isolated from Okinawa, Japan

Furuya, Noriko; Natsuaki, Keiko T.

doi:10.1007/s10327-004-0162-3

Cited by 23 publications

(16 citation statements)

References 13 publications

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“…They attributed this relatively high level of sequence variation to the virus having been present in the region for a long time. The low sequence variation of Asian group BBTV (less than 1%) in Okinawa, occurring over at least 31 years [28], would seem not to agree with the previously mentioned rates of BBTV divergence. Possibly this seemingly anomalously low diversity is due to bottlenecks occurring during movement of the virus, in infected suckers, between plantations which are on separate islands.…”

Section: Discussionmentioning

confidence: 42%

Molecular characterisation of Banana bunchy top virus (BBTV) from Pakistan

et al. 2007

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Banana bunchy top disease is caused by a single-stranded circular DNA virus, banana bunchy top virus (BBTV), which is a member of the genus Babuvirus (family Nanoviridae). We have cloned and sequenced five components (DNA-R, DNA-S, DNA-N, DNA-M and DNA-C) of a BBTV isolate originating from Pakistan. In addition, the DNA-R and several other components of five further isolates, originating from geographically distinct sites across the banana-growing area of Sindh province, Pakistan, were cloned and sequenced. Analysis of the sequences indicates that BBTV present in Pakistan belongs to the "South Pacific" group of isolates and that the genetic diversity of the virus in the country is very low. The virus shows the highest levels of sequence identity to BBTV isolates originating from Egypt, India and Australia. The significance of these results with respect to the possible origin of the virus in Pakistan and the prospects for obtaining genetically engineered resistance to the virus are discussed.

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Section: Discussionmentioning

confidence: 42%

Molecular characterisation of Banana bunchy top virus (BBTV) from Pakistan

et al. 2007

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“…An Indian BBTV isolate was found to also belong to the South Pacific group. Further, BBTV isolates from Australia [7,10], China [11] Japan, Philippines [12,13], and Pakistan [14] have been characterized based on the six DNA components. Two isolates of a novel Babuvirus (Abaca 0 bunchy top virus, ABTV) causing bunchy top symptom were also characterized recently from abaca 0 (Musa textilis) in the Philippines and from banana (Musa sp.)…”

Section: Introductionmentioning

confidence: 99%

Molecular characterization of an Indian isolate of Banana bunchy top virus based on six genomic DNA components

2009

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Banana bunchy top virus (BBTV) is a single-stranded circular DNA virus of the genus Babuvirus, belonging to family Nanoviridae. The six genomic DNA components of Indian (Lucknow) isolate of BBTV were amplified by polymerase chain reaction (PCR) with specific primers using total DNA extracted from banana tissues showing typical symptoms of banana bunchy top disease (BBTD). The resulting ~1.1 Kb amplicons were cloned and sequenced. Analysis of sequence data revealed the presence of six full-length components of BBTV: DNA-R (1111 bp), DNA-U3 (1060 bp), DNA-S (1075 bp), DNA-M (1048 bp), DNA-C (1018 bp), and DNA-N (1096 bp). Comparisons of sequence data of the six DNA components of the BBTV Lucknow isolate revealed highest identities with sequences of other BBTV isolates from the South Pacific group: [DNA-R (98%), DNA-U3 (93%), DNA-S (100%), DNA-M (98%), DNA-C (97%), and DNA-N (99%)]. A phylogenetic analysis revealed a close relationship of the Lucknow isolate with BBTV isolates of South Pacific group rather than those of the Asian group. Based on these analyses the virus has been classified as BBTV Lucknow, a new member of South Pacific group.

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“…The yield of banana each year is approximately 100 million tons worldwide (Furuya et al 2005), and more than 1.2 million tons in China alone (Ma 2006). Guangxi is one of the largest banana-producing provinces in China with banana plantations located mainly in the southeast to southwest regions.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Exserohilum rostratum, a new causal agent of banana leaf spot disease in China

Lin

Huang

et al. 2011

Australasian Plant Pathol.

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A new banana leaf spot disease (named as exserohilum leaf spot) caused by Exserohilum rostratum was found in Guangxi, China during a series of surveys on fungal species causing banana leaf diseases between 2005-2009. Three single spore derived isolates (CLER09, D087 and JL05) were obtained from diseased banana leaves and the pathogenicity of each isolate to banana plants was confirmed by inoculation tests based on Koch's postulates. Three distinctive types of conidia (A, B and C) were produced by all isolates when subjected to a range of light environments. The isolates were identified as members of E. rostratum based on their morphological characters as well as rDNA-ITS (internal transcribed spacer) sequences. The effects of temperature and pH on vegetative growth and sporulation of the E. rostratum isolates were also characterized during this study. A similar host spectrum among the isolates was also observed in the host range tests on 128 plant species covering 47 families using a detached leaf inoculation technique.

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Characterization and genetic status of Banana bunchy top virus isolated from Okinawa, Japan

Cited by 23 publications

References 13 publications

Molecular characterisation of Banana bunchy top virus (BBTV) from Pakistan

Molecular characterisation of Banana bunchy top virus (BBTV) from Pakistan

Molecular characterization of an Indian isolate of Banana bunchy top virus based on six genomic DNA components

Characterization of Exserohilum rostratum, a new causal agent of banana leaf spot disease in China

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