Abstract
Severe mosaic with leaf malformation and green vein banding was observed on yam bean in West and Central Java, Indonesia. Virions of the causal virus were flexuous filaments, about 700 nm in length, with a coat protein of 30 kDa. The virus was transmitted by mechanical inoculation and by aphids in a nonpersistent manner. The nucleotide sequence of the coat protein gene had the highest identity with that of Bean common mosaic virus (BCMV, genus Potyvirus) isolate VN/BB2-5. Based on demarcation criteria, including the genome sequence and host range, we tentatively designate this isolate as BCMV-IYbn (Indonesian yam bean).
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Acknowledgments
We thank Endang Nurhayati for providing anti-WMV2 and anti-SqMV antisera and Gede Suastika for anti-PRSV antiserum and Edi Supardi for assistance in preparation of the greenhouse trials. This work was supported by fundamental research grant from Indonesia Directorate General of Higher Education (IDGHE) No.012/SP2H/PP/DP2M/III and research grant from The Academy of Sciences for the Developing World (TWAS) No.06-038 RG/BIO/AS.
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The nucleotide sequence reported is available in the DDBJ/EMBL/GenBank databases under accession number AB289438.
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Damayanti, T.A., Susilo, D., Nurlaelah, S. et al. First report of Bean common mosaic virus in yam bean [Pachyrhizus erosus (L.) Urban] in Indonesia. J Gen Plant Pathol 74, 438–442 (2008). https://doi.org/10.1007/s10327-008-0122-4
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DOI: https://doi.org/10.1007/s10327-008-0122-4