- Our people
- Trust,Trustees & Trust Committees
- Organisation structure
- Senior staff
- Science staff
- Honorary Research Associates
- Archer, Alan
- Bernhardt, Peter
- Briggs, Barbara
- Chambers, Carrick
- Dingley, Michael
- Howell, Jocelyn
- Hill, Ken
- Leslie, John
- Mabberley, David
- Michael, Peter
- Quinn, Christopher
- Ramsay, Helen
- Rees, Bettye
- Spence, Phil
- Thompson, Joy
- Thomson, John
- Tindale, Mary
- Wilson, Edwin
- Research Students
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Name
John A. Thomson
Position
Honorary Research Associate
Professor Emeritus, Unversity of Sydney
Email
John.Thomson@rbgsyd.nsw.gov.au
Phone
(02) 9231 8307
Fax
(02) 9251 7231
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Research interests
Biogeography and phylogeny of bracken ferns using morphometrics and molecular criteria (DNA fingerprinting, sequencing of specific nuclear and chloroplast genes); bracken/insect interactions; secondary chemicals of bracken including carcinogens and allelopathic agents.
Keywords
ferns, molecular systematics, biogeography, phylogeny
Current research projects
Evolutionary relationships and taxonomy of the bracken ferns (Pteridium) worldwide
Key publications
- Smith, B.L., Seawright, A.A , Ng, J.C., Hertle, A.T., Thomson, J.A. and Bostock, P.D. 1994. Concentration of ptaquiloside, a major carcinogen in bracken fern (Pteridium spp), from eastern Australia and from a cultivated worldwide collection held in Sydney, Australia. Natural Toxins 2: 347-353.
- Stein, D.B, Conant,D.S., Ahearn, M.E., Jordan, E.T., Kirch, S.A., Hasebe, M., Iwatsuki, K., Tan M.K. and Thomson, J.A. 1992. Structural rearrangements of the chloroplast genome provide an important phylogenetic link in ferns. Proc. Natl Acad. Sci., U.S.A. 89:1856-1860.
- Taylor, J.E. and Thomson, J.A. 1998. Bracken litter as mulch: glasshouse evaluation of phytotoxicity. Aust. J. Exp. Agr. 38:161-169.
- Thomson, J.A.. 2000a. Morphological and genomic diversity in the genus Pteridium (Dennstaedtiaceae). Ann. Bot. 85 (Supplement B): 77-99.
- Thomson, J.A.. 2000b. New perspectives on taxonomic relationships in Pteridium. In: Taylor J.A. and R.T. Smith, eds. Bracken Fern: Toxicity, Biology and Control. Aberystwyth: International Bracken Group, 15-42.
- Thomson, J. A., 2002. An improved non-cryogenic transport and storage preservative facilitating DNA extraction from ‘difficult’ plants collected at remote sites. Telopea 9(4):755-760.
- Thomson, J.A and M.E. Alonso-Amelot. 2002. Clarification of the taxonomic status and relationships of Pteridium caudatum (Dennstaedtiaceae) in Central and South America. Bot. J. Linn. Soc.140:237-248.
- Thomson, J.A. and A B. Martin.1996. Gnarled trichomes: an understudied character in Pteridium. Amer. Fern J. 86: 36-51.
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