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Received: 2006-09-17

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Journal of Zhejiang University SCIENCE B 2007 Vol.8 No.4 P.256-259


A TOM1 homologue is required for multiplication of Tobacco mosaic virus in Nicotiana benthamiana

Author(s):  CHEN Bing, JIANG Jin-hua, ZHOU Xue-ping

Affiliation(s):  State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou 310029, China; more

Corresponding email(s):   zzhou@zju.edu.cn

Key Words:  Tobacco mosaic virus, NbTOM1, Virus induced gene silencing, Nicotiana benthamiana

CHEN Bing, JIANG Jin-hua, ZHOU Xue-ping. A TOM1 homologue is required for multiplication of Tobacco mosaic virus in Nicotiana benthamiana[J]. Journal of Zhejiang University Science B, 2007, 8(4): 256-259.

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DOI - 10.1631/jzus.2007.B0256

The AtTOM1 gene of Arabidopsis thaliana had been shown to be essential for the efficient multiplication of tobacco mosaic virus (TMV) in A. thaliana. In this study, we cloned an AtTOM1-like gene from Nicotiana benthamiana named as NbTOM1. Sequence alignment showed that NbTOM1 is closely related to AtTOM1 homologues of N. tabacum and Lycopersicon esculentum with 97.2% and 92.6% nucleotide sequence identities, respectively. Silencing of NbTOM1 by a modified viral satellite DNA-based vector resulted in complete inhibition of the multiplication of TMV in N. benthamiana. The result suggests that inhibition of NbTOM1 via RNA silencing is a potentially useful method for generating TMV-resistant plants.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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