Dr. Bill Dawson

Dr. Bill Dawson

  Eminent Scholar
  Plant Pathology
  Phone: 863.956.8714
  Fax: 863.956.4631
  Email: wodtmv@ufl.edu

 

Refereed publications

Tatineni, S., Robertson, C. J., Garnsey, S. M., Bar-Joseph, M., Gowda, S., and Dawson, W. O.  2008.  Three genes of Citrus tristeza virus are dispensable for infection and movement throughout citrus trees.  Virology (in press).

Folimonov, A. S., Folimonova, S. Y., Bar-Joseph, M., and Dawson, W. O.  2007.  A stable RNA virus-based vector for citrus trees.  Virology 368: 205-216. 

Weng, Z., Barthelson, R., Gowda, S., Hilf, M. E., Dawson, W. O., Galbraith, D. W., and Xiong, Z.  2007.  Persistent infection and promiscuous recombination of multiple genotypes of an RNA virus within a single host generate extensive diversity.  PLoS ONE 2: e917.

Borovsky, D., Rabindran, S., Dawson, W. O., Powell, C. A., Iannotti, D. A., Morris, T. J., Shabanowitz, J., Hunt, D. F., DeBondt, H. L., and DeLoff, A.  2006.  Expression of Aedes trypsin-modulating oostatic factor on the virion of TMV:  A potential larvicide.  Proc. Natl. Acad. Sci. USA 103: 18963-18968.

Robertson, C. J., Garnsey, S. M., Satyanarayana, T., Folimonova, S., and Dawson, W. O. 2005. Efficient infection of citrus plants with different cloned constructs of Citrus tristeza virus amplified in Nicotiana benthamiana protoplasts.  Proc. 16th Conference of the IOCV 16: 187-195.

Satyanarayana, T., Robertson, C. J., Garnsey, S. M., and Dawson, W. O. 2005.  Generation of a genetically engineered MCA13 nonreactive variant of the T36 decline isolate of Citrus tristeza virus. Proc. 16th Conference of the IOCV 16: 33-43.

Gowda, S., Satyanarayana, T., Robertson, C. J., Garnsey, S. M., and Dawson, W. O. 2005. Infection of citrus plants with virions generated in Nicotiana benthamiana plants agroinfiltrated with a binary vector based Citrus tristeza virus.  Proc. of the 16th Conference of the IOCV 16: 23-33. 

Ayllón, M. A., Satyanarayana, T., Gowda, S., and Dawson, W. O.  2005.  An atypical 3'-controller element mediates low-level transcription of the p6 subgenomic mRNA of Citrus tristeza virus.  Mol. Plant Pathol. 6:165-176. 

Rabindran, S., Robertson, C., Achor, D., German-Retana, S., Holt, C., and Dawson, W. O.  2005.  Odontoglossum ringspot virus host range restriction in Nicotiana sylvestris maps to the replicase gene.  Mol. Plant Pathol. 6:439-447.

Satyanarayana, T., Gowda, S., Ayllón, M. A., and Dawson, W. O.  2004.  Closterovirus bipolar virion:  Evidence for initiation of assembly by minor coat protein and its restriction to the genomic RNA 5' region.  Proc. Natl. Acad. Sci. USA 101:799-804.

Ayllón, M. A., Gowda, S., Satyanarayana, T., and Dawson, W. O.  2004.  Cis-acting elements at opposite ends of the Citrus tristeza virus genome differ in initiation and termination of subgenomic RNAs.  Virology 322:41-50.

Albiach-Martí, M. R., Grosser, J. W., Gowda, S., Mawassi, M., Satyanarayana, T., Garnsey, S. M., and Dawson, W. O.  2004.  Citrus tristeza virus replicates and forms infectious virions in protoplasts of resistant citrus relatives.  Mol. Breed. 14:117-128.

Lu, R., Folimonov, A., Shintaku, M., Li, W-X., Falk, B. W., Dawson, W. O., and Ding, S-W. 2004.  Three distinct suppressors of RNA silencing encoded by a 20-kb viral RNA genome. Proc. Natl. Acad. Sci. USA 101:15742-15747. 

Gowda, S., Ayllón, M. A., Satyanarayana, T., Bar-Joseph, M., and Dawson, W. O.  2003.  Transcription strategy in a Closterovirus:  A novel 5'-proximal controller element of Citrus tristeza virus produces 5'- and 3'-terminal subgenomic RNAs and differs from 3'-ORF controller elements.  J. Virol. 286:134-151.

Che, X., Dawson, W. O., and Bar-Joseph, M.  2003.  Defective RNAs of Citrus tristeza virus analogous to Crinivirus genomic RNAs.  Virology 310:298-309.

Bar-Joseph, M., Che, X., Mawassi, M., Gowda, S., Satyanarayana, T., Ayllon, M. A., Albiach-Marti, M. R., Garnsey, S. M., and Dawson, W. O.  2003.  The continuous challenge of Citrus tristeza virus molecular research.  Int. Org. Citrus Virol. 15:1-7.

Lee, R. F., Brlansky, R. H., Dawson, W. O., Roberts, P. D., and Timmer, L. W.  2003.  Florida Citrus Pest Management Guide:  Tristeza.  p. 93-95, 2003 Florida Citrus Pest Management Guide.  L. W. Timmer, ed.  University of Florida IFAS Extension SP-43.

Ayllon, M. A., Gowda, S., Satyanarayana, T., Karasev, A. V., Adkins, S., Mawassi, M., Guerri, J., Moreno, P., and Dawson, W. O.  2003.  Effects of modification of the transcription initiation site context on citrus tristeza virus subgenomic RNA synthesis.  J Virol. 77:9232-9243. 

Satyanarayana, T., Gowda, S., Ayllon, M. A., and Dawson, W. O.  2003.  Frameshift mutations in infectious cDNA clones of Citrus tristeza virus: a strategy to minimize the toxicity of viral sequences to Escherichia coli.  Virology 313:481-491.

Gowda, S., Satyanarayana, T., Ayllón, M. A., Moreno, P., Flores, R., and W. O. Dawson.  2003.  The conserved structures of the 5' nontranslated region of Citrus tristeza virus are involved in replication and virion assembly.  Virology 317:50-64. 

Olivares-Fuster, O., Fleming, G. H., Albiach-Martí, M. R., Gowda, S., Dawson, W. O., and Grosser, J. W.  2003.  CTV Resistance in transgenic Citrus based on virus challenge of protoplasts.  In vitro Cell. Dev. Biol. Plant 39:567-572.

Satyanarayana, T., Gowda, S., Ayllón, M. A., Albiach-Martí, M. R., Rabindran, S. and Dawson, W. O.  2002.  The p23 protein of Citrus tristeza virus controls asymmetrical RNA accumulation.  J. Virol. 76:473-483.

Satyanarayana, T., Gowda, S., Ayllon, M. A., Albiach-Martí, M. R., and Dawson, W. O.  2002. Mutational analysis of the replication signals in the 3'-nontranslated region of Citrus tristeza virus.  Virology 300:140-152.

Satyanarayana, T., Bar-Joseph, M., Mawassi, M., Albiach-Martí, M. R., Ayllón, M. A., Gowda, S., Hilf, M. E., Moreno, P., Garnsey, S. M., and Dawson, W. O.  2001.  Amplification of Citrus tristeza virus from a cDNA clone and infection of citrus trees.  Virology 280:87-96. 

Karasev, A. V., Gowda, S., Bar-Joseph, M., and Dawson, W. O.  2001.  Closteroviruses.  p. 228-230, Encyclopedia of Plant Pathology, 2 Vol. Set.  O. C. Maloy and T. D. Murray, eds.  John Wiley & Sons, Inc.

Rabindran, S., and Dawson, W. O.  2001.  Assessment of recombinants that arise from the use of a TMV-based transient expression vector.  Virology 284:182-189.

Knapp, E., Dawson, W. O., and Lewandowski, D. J.  2001.  The conundrum of the lack of dRNAs associated with tobamovirus infections:  dRNAs that can move are not replicated by the wild-type virus; dRNAs that are replicated by the wild-type virus do not move.  J. Virol. 75:5518-5525.

Gowda, S., Satyanarayana, T., Ayllón, M. A., Albiach-Martí, M. R., Mawassi, M., Rabindran, S., Garnsey, S. M., and Dawson, W. O.  2001.  Characterization of the cis-acting elements controlling subgenomic mRNAs of Citrus tristeza virus:  production of positive- and negative-stranded 3'-coterminal and positive-stranded 5'-coterminal RNAs.  Virology 286:134-151.

Che, X., Piestun, D., Mawassi, M., Yang, G., Satyanarayana, T., Gowda, S., Dawson, W. O., and Bar-Joseph, M.  2001.  5'-Coterminal subgenomic rnRNAs in citrus tristeza virus-infected cells. Virology 283:374-381.

Peng, C-W., Peremyslov, V. V., Mushegian, A. R., Dawson, W. O., and Dolja, V. V.  2001. Functional specialization and evolution of the leader proteinases in the family Closteroviridae.  J. Virol. 75:12153-12160.

Mawassi, M., Satyanarayana, T., Gowda, S., Albiach-Martí, M. R., Robertson, C., and Dawson, W. O.  2000.  Replication of heterologous combinations of helper and defective RNA of citrus tristeza virus.  Virology 267:360-369.

Lewandowski, D. J., Dawson, W. O.  2000.  Functions of the 126- and 183-kDa proteins of tobacco mosaic virus.  Virology 271:90-98.

Chandrika, R., Rabindran, S., Lewandowski, D. J., Manjunath, K. L., and Dawson, W. O.  2000.  Full-length tobacco mosaic virus RNAs and defective RNAs have different 3' replication signals.  Virology 273:198-209.

Albiach-Martí, M. R., Mawassi, M., Gowda, S., Satyanarayana, T., Hilf, M. E., Shanker, S., Almira, E. C., Vives, M. C., López, C., Guerri, J., Flores, R., Moreno, P., Garnsey, S. M., and Dawson, W. O.  2000.  Sequences of citrus tristeza virus separated in time and space are essentially identical.  J. Virol.74:6856-6865.

Gowda, S., Satyanarayana, T., Davis, C., Navas-Castillo, J., Albiach-Martí, M. R., Mawassi, M., Valkov, N., Bar-Joseph, M., Moreno, P., and Dawson, W. O.  2000.  The p20 gene product of citrus tristeza closterovirus accumulates in the amorphous inclusion bodies.  Virology 274:246-254.

Mawassi, M., Satyanarayana, T., Albiach-Martí, M. R., Gowda, S., Ayllón, M. A., Robertson, C., and Dawson, W. O.  2000.  The fitness of Citrus tristeza virus defective RNAs is affected by the lengths of their 5'- and 3'-termini and by the coding capacity.  Virology 275:42-56.

Grdzelishvilli, V. Z., Chapman, S. N., Dawson, W. O., and Lewandowski, D. J.  2000.  Mapping the Tobacco Mosaic Virus movement protein and coat protein subgenomic RNA promoters in vivo.  Virology 275:177-192.

Satyanarayana, T., Gowda, S., Mawassi, M., Albiach-Martí, M. R., Ayllón, M. A., Robertson, C., Garnsey, S. M., and Dawson, W. O.  2000.  Closterovirus HSP70 homolog and p61 in addition to both coat proteins function in efficient virion assembly.  Virology 278:253-265.

Dawson, W. O., Satyanarayana, T., Gowda, S., Mawassi, M., Albiach-Martí, M. R., Ayllón, M. A., and Rabindran, S.  2000.  Development of a genetic system of the largest known plant virus, Citrus tristeza virus.  Proc. Int. Soc. Citricult.  IX Congr. 969-971.

Satyanarayana, T., S. Gowda, V. P. Boyko, M. R. Albiach-Marti, M. Mawassi, J. Navas-Castillo, A. V. Karasev, V. Dolja, M. E. Hilf, D. J. Lewandowski, P. Moreno, M. Bar-Joseph, S. M. Garnsey, and W. O. Dawson.  1999.  An engineered closterovirus RNA replicon and analysis of
heterologous terminal sequences for replication.  Proc. Natl. Acad. Sci. 96:7433-7438. 

Education

University of Georgia, 1971, PhD in Plant Pathology

University of Georgia, 1966, BS in Chemistry

Past Positions

1991-1992 University of California Presidential Chair in Plant
Dept. of Plant Pathology
Riverside, CA 92521

1984-1991 University of California Professor
Dept. of Plant Pathology
Riverside, CA 92521

1978-1984 University of California Associate Professor
Dept. of Plant Pathology
Riverside, CA 92521

1972-1978 University of California Assistant Professor
Dept. of Plant Pathology
Riverside, CA 92521

Additional Information

J. R. and Addie S. Graves Endowed Chair in Citrus Biotechnology