PETER MITCHELL HANSON
Address:
AVRDC–The World Vegetable Center
P.O. Box 42 Shanhua
Tainan 741 Taiwan
Republic of China
Email : peter.hanson@worldveg.org
Tel
: 886-6-583-7801 ext. 370
Summary of Experience:
Over thirty years of plant breeding experience, primarily with tomato, common bean
and soybean. Most of my work has focused on the problems of tropical crops, especially
breeding for disease resistance.
Education:
Ph.D. 1987 University of Illinois - Plant Breeding & Agronomy
M.S. 1984 University of Illinois - Plant Breeding & Agronomy
B.S. 1982 University of Minnesota - Agronomy
B.A. 1978 University of Minnesota - History/Near East & India
Employment-summary:
1993-present: AVRDC- The World Vegetable Center
1990-1992: Centro Internacional de Agricultura Tropicál (CIAT), Cali, Colombia
1987-1989: Egerton University, Box 536, Njoro Kenya
Employment:
1993–present AVRDC- The World Vegetable Center, Taiwan
2007- present: Global Theme Leader – Breeding
Defined strategic research direction of AVRDC vegetable breeding programs in
tropical Asia and Africa. Worked with staff to identify priorities, opportunities and
constraints; wrote and reviewed funding proposals and scientific papers for
scientific quality; reviewed and monitored annual workplans and mentored staff.
1993- present: Vegetable Breeder (tomato, indigenous vegetables)
Developed tropically-adapted tomato inbred lines for use as cultivars by public
and private sectors in Southeast and South Asia, Sub-Saharan Africa, and
Central America. Breeding targets included heat tolerance, multiple disease
resistance (begomoviruses, bacterial wilt, and late blight), fruit quality and
nutrient content. Identified and introgressed alleles from wild tomato species
improving disease resistance, nutrient and fruit quality traits. Taught
vegetable breeding to private and public sector plant breeders through course
and internships. Since 2004, directed the research activities of the Taiwan1
based AVRDC indigenous vegetable group, including Malabar spinach (Basella
alba), non-heading crucifers, roselle (Hibiscus sabdariffa) and others.
1990–1992 Bean (Phaseolus vulgaris) Breeder, CIAT, Colombia
Improvement of large-seeded beans for yield, and disease and insect resistance, and
nitrogen-fixation potential. Provision of advanced lines and segregating populations
to national programs in East Africa. Research projects on heritability and gene action
of biological nitrogen fixation, and disease resistance. Designed a three month
training course in bean research methods for African scientists and taught sections
on experimental design and statistical software.
1987-1989
Senior Lecturer, Egerton University
Member of U.S. government-sponsored project to improve agricultural research and
teaching. Taught plant breeding and experimental design courses emphasizing field
practicals to undergraduates. Designed IPM guidelines for an insect problem of
pyrethrum; collected and evaluated genetic diversity among Kenyan maize
landraces.
1982-1987
Research Assistant, Soybean breeding, University of Illinois, USA
Involved in all aspects of a commercial scale breeding program designed to develop
soybean varieties. With advisor, released two cultivars and two germplasm lines.
Awards/Honors:
 Outstanding Paper on Plant Genetic Resources, Crop Science Society of America,
1998
 Ingersoll Fellowship, University of Illinois, 1985-86
 Pioneer Fellowship in Plant Breeding, University of Illinois 1986-87
 B.A. conferred summa cum laude, University of Minnesota, 1978
 Phi Beta Kappa and Gamma Sigma Delta honorary societies
Professional memberships:
Sigma Xi
American Society for Horticultural Science
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Publications:
Balatero, C.H., D.M. Hautea, P.M. Hanson, and J.O. Narciso. 2002. Development of molecular
markers for marker-assisted breeding for bacterial wilt resistance in tomato. Philippine Agric.
Scientist 85:170–181.
Bian, X-Y, M.R. Thomas, M.S. Rasheed, M. Saeed, P. Hanson, P. De Barro and M. A. Rezaian.
2007. A recessive allele (tgr-1) conditioning tomato resistance to geminivirus infection is
associated with impaired virus movement. Phytopathology 97: 930–937.
Bradford, K.J., R. Gjuric, A. Ebert, P. Gniffke, P. Hanson, N. Mulcahy, J. van Asbrouck and H.
Nonogaki. 2012. Producing and managing high quality seed. APSA Technical Report 2012, No.
1. 13 pp. Asia and Pacific Seed Association, Bangkok Thailand.
Chen, J-T, Hanson, P.M., C.G. Kuo and R.T. Opeña. 2003. Genetic improvement of fresh
market tomatoes (Chinese). J. Agric. Assoc. China 4: 83–102.
Chunwongse, J., C. Chunwongse, L. Black, and P. Hanson. 2002. Molecular mapping of the
Ph-3 gene for late blight resistance in tomato. J. Hort. Sci.Biotech. 77: 281–286.
Colvin, J., N. Nagaraju, C. Moreno-Leguizamon, R.M. Govindappa, T.B. Manjunatha, S.A.
Padmaja, N. Joshi, P.M. Hanson, S.E. Seal, and V.Muniyappa. 2012. Socio-economic and
scientific impact created by whitefly-transmitted plant virus disease resistant tomato
varieties in southern India. J. Integrative Agric. 11: 337-345.
Dagnoko, S., P. Hanson, Fufa, F. and I.A. Kollo. 2011. Preliminary performance of tomato
breeding lines for yield, fruit quality, and resistance to Tomato Yellow Leaf Curl Disease.
Proc. First All-Africa Horticultural Congress (J. Wesonga and R. Kahane eds.) Acta Hort. 911:
455-468
Daunay, M.C., H. Laterrot, J.W. Scott, P. Hanson and J-F Wang. 2010. Tomato resistance to
bacterial wilt caused by Ralstonia solanacearum E.F. Smith: ancestry and peculiarities. Rpt.
Tomato Genetics Coop. 60: 6–40.
de la Peña, R.C., A.W. Ebert, P.A. Gniffke, P. Hanson and R.C. Symonds. 2011. Genetic
adjustment to changing climates: vegetables. Pp. 396–410 in: Crop Adaptation to Climate
Change. S.S. Yadav, R.J. Redden, J.L. Hatfield, H. Lotze-Campen, A.E. Hall, eds. WileyBlackwell
Engle, L.E., S. Shanmugasundaram and P. Hanson. 2003. Evaluation and utilization of
vegetable genetic resources for the tropics. Acta Hort. 623: 263–274.
Fufa, F., P. Hanson, S. Dagnoko and M. Dhaliwal. 2011. AVRDC-The World Vegetable Center
tomato breeding in Sub-Saharan Africa: lessons from the past, present work, and future
prospects. Proc. First All-Africa Horticultural Congress (J. Wesonga and R. Kahane eds.) Acta
Hort. 911: 87-98.
Garcia, B.E., E. Graham, K.S. Jensen, P. Hanson, L. Mejia and D.P. Maxwell. 2007. Codominant SCAR marker for detection of the begomovirus-resistance Ty2 locus derived from
Solanum habrochaites in tomato germplasm. Rpt. Tomato Genetics Coop. 57:21–24.
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Graham, E., T.C. Wang and P. Hanson. 2005. Preliminary evaluation of LA1777 introgression
lines for early blight resistance. Rpt. Tomato Genetics Coop. 55:15–18.
Green, S.K., and P. Hanson. 1996. A new source of PVY resistance. Rpt. Tomato Genetics
Coop. 47:38.
Grimsley, N and P. Hanson. 1996. Genetics of plant resistance to bacterial wilt: round table
report. Pages 263–266 in: Bacterial Wilt Disease P. Prior, C.Allen, and J. Elphinstone, eds.
Springer-Verlag Berlin.
Hanson, P., C-W Tan, F-I Ho, S-F Lu, D. Ledesma and J-F wang. 2013. Evaluation of near-isogenic
tomato lines with and without the bacterial wilt resistance allele, Bwr-12. Rpt. Tomato Genetics
Coop. 63: 15–21.
Hanson, P.M., R-Y. Yang, L-C. Chang, L. Ledesma and D. Ledesma. 2011. Carotenoids, ascorbic
acid, minerals, and total glucosinolates in choysum (Brassica rapa cvg. parachinensis) and
kailaan (B. oleraceae Alboglabra Group) as affected by variety and wet and dry season
production. J Food Comp Analysis 24: 950–962.
Hanson, P.M., R. Y. Yang, L.C. Chang, L. Ledesma and D. Ledesma. 2009. Contents of
carotenoids, ascorbic acid, minerals and total glucosinolates in leafy brassica pakchoi (Brassica
rapa L. chinensis Group) as affected by season and variety. J. Sci. Food Agric. 89: 906–914.
Hanson, P.M., Sitathani, A.T. Sadashiva, R-Y. Yang, E. Graham and D. Ledesma. 2007.
Performance of Solanum habrochaites LA1777 introgression line hybrids for marketable fruit
yield in Asia. Euphytica 158: 168–178.
Hanson, P.M., R.Y. Yang, J. Wu, J.T. Chen, D. Ledesma, S.C.S. Tsou and T.C. Lee. 2004.
Variation for antioxidant activity and antioxidants in tomato. J. Amer. Soc. Hort. Sci. 129:
704–711.
Hanson, P.M., R.Y. Yang, S. Lin, S.C.S. Tsou, T.C. Lee, J. Wu, J. Shieh, P. Gniffke and D.
Ledesma. 2004. Variation for antioxidant activity and antioxidants in a subset of AVRDC- the
World Vegetable Center Capsicum core collection. Plant Genetic Resources Characterization
and Utilization 2: 153–166.
Hanson, P.M., R-Y. Yang, S.C.S. Tsou, D. Ledesma, L. Engle and T-C. Lee. 2006. Diversity in
eggplant (Solanum melongena) for superoxide scavenging activity, total phenolics, and
ascorbic acid. J. Food Comp Analysis 19: 594–600.
Hanson, P., K. Weinberger, T. Kalb and J-f Wang. 2003. AVRDC and the private seed industry:
a growing partnership in tomato and pepper breeding. Asian Seed and Planting Material 10:
4–8.
Hanson, P., S.K. Green and G. Kuo. 2006. Ty-2, a gene on chromosome 11 conditioning
geminivirus resistance in tomato. Rpt. Tomato Genetics Coop. 56: 17–18.
Hanson, P.M., J.T. Chen, and G. Kuo. 2002. Gene action and heritability of high temperature
fruit set in tomato line CL5915. HortScience 37: 172–175.
Hanson, P., J.T. Chen, C.G. Kuo, R. Morris, and R.T. Opeña. 2001. Suggested cultural practices
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for tomato. International Cooperators’ Guide, Asian Vegetable Research and Development
Center (AVRDC), Taiwan.
Hanson, P. and J-t Chen. 1998. Institute enjoys close ties with private sector. Asian Seed and
Planting Material 5: 4–5.
Hanson, P.M., and C.D. Nickell. 1986. Inheritance of metribuzin sensitivity in the soybean
cultivar, 'Altona'. Soybean Genetics Newsletter 13:111–115.
Hanson, P.M., C.D. Nickell, L.E. Gray, and S.A. Sebastian. 1988. Identification of two
dominant alleles conditioning brown stem rot resistance in soybeans. Crop Science 28:41–
43.
Hanson, P.M., and Lane Smith II. 1992. Field evaluation of Kenyan open pollinated maize
populations for reaction to rust. Tropical Agriculture 69: 137–140.
Hanson, P.M. and Lane Smith II. 1992. Economics of chemical and manual weed control of
hybrid maize in the Kenya highlands. Tropical Pest Management 38: 210–213.
Hanson, P.M. and M.A. Pastor-Corrales. 1993. Heritability and sources of resistance to
Ascochyta blight in common bean. Plant Disease 77:711–714.
Hanson, P.M., J.F. Wang, O. Licardo, Hanudin, S.Y. Mah, G.L. Hartman, Y.C. Lin, and J.T. Chen.
1996. Variable reaction of tomato lines to bacterial wilt evaluated at several locations in
Southeast Asia. Hort Science 31:143–146.
Hanson, P.M., O. Licardo, Hanudin, J.F. Wang, and J.T. Chen. 1998. Diallel analysis of bacterial
wilt resistances in tomato derived from different sources. Plant Disease 82:74–78.
Hanson, P.M., D. Bernacchi, S. Green, S.D. Tanksley, V. Muniyappa, A. Padmaja, H.M. Chen,
G. Kuo, and J.T. Chen. 2000. Mapping a wild tomato introgression associated with tomato
yellow leaf curl virus resistance in a cultivated tomato line. J. Amer. Soc Hort. Sci: 125:15–20.
Ji, Y., J.W. Scott, P. Hanson, E. Graham and D. Maxwell. 2007. Sources of resistance,
inheritance, and location of genetic loci conferring resistance to members of the tomatoinfecting begomoviruses. Pages 343–266 in: Tomato Yellow Leaf Curl Virus Disease. H.
Czosnek, ed. Springer, Dordrecht, the Netherlands.
Juroszek, P., De. Ledesma, C.H. Ma, R.Y. Yang, H.M. Lumpkin, C.C. Lin, H.H. Tsai, D.L. Wu, P.
M. Hanson and M.C. Palada. 2008. Plant vigour and yields of organically and conventionally
grown tomato crops in Taiwan. Acta Hort. 767: 257–266.
Kadirvel, P., R. de la Peña, R. Schafleitner, S. Huang, S. Geethanjali, L. Kenyon, W. Tsai and P.
Hanson. 2013. Mapping of QTL’s in tomato line FLA456 associated with resistance to a virus
causing tomato yellow leaf curl disease. Euphytica 190: 297–308.
Maruthi, M.N., V. Muniyappa, S.K. Green, J. Colvin and P. Hanson. 2003. Resistance of
tomato and sweet-pepper genotypes to tomato leaf curl virus Bangalore virus and its vector
Bemisia tabaci. Intl. J. Pest Mgt. 49: 297–303.
Muniyappa, V., A.S. Padmaja, H.M. Venkatesh, A. Sharma, S. Chandrashekar, R.S. Kulkarni,
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P.M. Hanson, J.T. Chen, S.K. Green, and J. Colvin. 2002. Tomato leaf curl virus resistant
tomato lines TLB111, TLB130, TLB182. HortScience: 37: 603–606.
Nair, R.M., R. Schafleitner, L. Kenyon, R. Srinivasan, W. Easdown, A.W. Ebert, and P. Hanson.
Genetic improvement of mungbean. 2012. SABRO J Breeding and Genetics 44: 177–190.
Nickell, C.D., S.A. Sebastian, P.M. Hanson, D.J. Thomas, and L.E. Gray. 1987. Registration of
Chamberlain soybean. Crop Science 27:611.
Nickell, C.D., D. J. Thomas, L.E.Gray, and P.M. Hanson. 1989. Registration of Burlison
soybean. Crop Science 30:232.
Nickell, C.D., P.M.Hanson, L.E.Gray, D.J. Thomas, and D.B. Willmot. 1989. Registration of
LN86-1595 and LN86-1947 soybean germplasm lines resistant to brown stem rot. Crop
Science 30: 241.
Ojiewo, C., I.S. Swai, M. O. Olouch, D. Silué, R. Nono-Womdim, P. Hanson, L. Black and T.C.
Wang. 2010. Development and release of late blight resistant tomato varieties
‘Meru’ and ‘Kiboko’. International J Vegetable Sci 16: 134-147.
Ojiewo, C., I.S. Swai, M. O. Olouch, D. Silué, R. Nono-Womdim, P. Hanson, L. Black and T.C.
Wang. 2011. Participatory cultivar evaluation, selection, and release of late blight resistant
tomato cultivars in Tanzania. Proc. First All-Africa Horticultural Congress (J. Wesonga and R.
Kahane eds.) Acta Hort. 911: 199-205.
Onozato A., K. Nakamura, H. Ito, C.-W. Tan, S.-F Lu and P. Hanson. 2013. Breeding
processing tomato hybrids tolerant to tomato yellow leaf curl disease in Chinese
Taipei. Acta Hort. 971: 107-110.
Opeña, R.T., J.T. Chen, T. Kalb, and P. Hanson. 2001. Hybrid seed production in tomato.
International Cooperators’ Guide, Asian Vegetable Research and Development Center
(AVRDC), Taiwan.
Opeña, R.T., J.T. Chen, T. Kalb, and P. Hanson. 2001. Seed production of open-pollinated
tomato lines. International Cooperators’ Guide, Asian Vegetable Research and Development
Center (AVRDC), Taiwan.
Scott, J.W., J.-F. Wang and P.M. Hanson. 2005. Breeding tomatoes for resistance to bacterial
wilt, a Global view. Acta Hort. 695: 161–172.
Smith, L.M., and P.M. Hanson. 1991. Yield reduction in pyrethrum caused by Thrips
nigropilosis Uzel. (Thysanoptera: Thripidae). Tropical Agriculture 68: 235–238.
Talekar, N.S., R.T. Opeña and P. Hanson. 2006. Helicoverpa armigera management: a review
of AVRDC’s research on host plant resistance. Crop Protection 25:461–467.
Trong, H.T.H., E. Graham, E. Esch, J-F Wang and P. Hanson. 2010. Distribution of DArT
markers in a genetic linkage of tomato. Korean J Hort Sci. Tech. 28: 664–671.
Villand, J., P. Skroch, T. Lai, P. Hanson, C.G. Kuo, and J. Nienhuis. 1998. Genetic variation
among tomato accessions from primary and secondary centers of diversity. Crop Sci.
38:1339–1347.
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Wang, J.F., P. Hanson, and J.A. Barnes. 1998. Worldwide evaluation of an international set of
resistance sources to bacterial wilt in tomato. Pages 269–275 in: Bacterial Wilt Disease P.
Prior, C.Allen, and J. Elphinstone, eds. Springer-Verlag Berlin.
Wang, T.C., L.L. Black, W.H. Hsieh, and P.M. Hanson. 1995. Inheritance of black leaf mold
resistance in tomato. Euphytica 86: 111–115.
Weinberger, K., A. Kumar, J.-F Wang, P. Hanson. 2008. Impact of adoption of tomato
varieties resistant to bacterial wilt and tomato leaf curl virus on crop management practices
and farm livelihoods. Asian Seed and Planting Material 15: 25–27.
Yang, R.Y. and P.M. Hanson. 2009. Improved food availability for food and nutrition security
in Asia Pacific region. Asia Pacific Journal of Clinical Nutrition 18: 633–637.
Yang, RY, Tsou, S. C..S, Lee, T.C., Wu, W-J, Hanson, P., Kuo, G., Engle, L.E. and Lai, P-Y. 2006.
Distribution of 127 edible plant species for antioxidant activities by two assays. J. Sci. Food
and Agric. 86: 2395–2403.
Yang, R.Y., Hanson, P.M., Lumpkin, T.A. 2007. Better health through horticulture - AVRDC's
approach to improved nutrition of the poor. Acta Hort. 744:71–77.
Proceedings and Abstracts:
Anderson, P.K., F.J. Morales, J.P. Legg, and P.M. Hanson. 2002. Management of
begomoviruses by resource poor farmers in the tropics. Annual meeting of the American
Phytopathological Society, 27–31 July Milwaukee, WI. Phytopathology 92:S109.
Balatero, C.H., D.M. Hautea, J.O. Narisco, P.M. Hanson, J.T. Bituin and R.L. Tiongco. 2000.
Towards a DNA marker-assisted breeding for stable and durable bacterial wilt resistance in
tomato. Paper presented at the 12th Natl. Res. Symp. of the Philippines Dept. of Agric.
Chunwongse, J., C. Chunwongse, L. Black, and P. Hanson. 1998. Mapping of the Ph-3 gene for
late blight resistance from L. pimpinellifolium L3708. Rpt. Tomato Genetics Coop. 48:13-14.
Hanson, P.M., and C.D. Nickell. 1984. Field screening of soybeans for metribuzin tolerance.
(Abstr.) World Soybean Research Conference - III: Program and Abstracts, 63.
Hanson, P.M., and C.D. Nickell. 1986. Inheritance of brown stem rot resistance in soybean
PI437.833. (Abstr.) Agronomy Abstracts 78:65.
Hanson, Peter, M. 1991. Custom-built crosses for Africa. (Abstr.) Ninth SUA/CRSP Bean
Research Workshop and Second SADCC/CIAT Regional Bean Research Workshop. Sokoine
University of Agriculture, Morogoro, Tanzania September 17-22, 1991. p 38.
Muniyappa, V., J. Colvin, G.K. Banks, R.V. Chowda Reddy, M.N. Maruthi, H.M. Venkatesh, F.J.
Beitia, M. Kiran Kumar, A.S. Padmaja, P.M. Hanson and S.E. Seal. 2001. Outbreak of tomato
leaf curl virus disease and its vector, Bemisia tabaci, in Kolar district of Karnataka, south
India. Poster presented at the European Whitefly Symposium, Sicily.
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Sammons, D., P. Hanson, and D. Cox. 1990. Introduction to Plant Breeding: Lecture notes for
CWS 340 at North Dakota State University and Agronomy 316 at Egerton University, Kenya.
Crop and Weed Sciences Dept., North Dakota State Univ., USA.
Shih, S.L., W.S. Tsai, S.K. Green and P.M. Hanson. 2003. Molecular characterization of a new
tomato begomovirus from India. Plant Dis. 87: 598 (abstract).
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References:
Jürgen Friedrichsen
Deputy Director General-AVRDC (retired)
D-61350, Bad Homburg, Germany
Telephone:
Email: JU.Friedrichsen@t-online.de
Julia Kornegay
(Former supervisor at CIAT)
Head, Dept. of Horticultural Science
120 Kilgore Hall, Box 7609
North Carolina State University
Raleigh, NC 27695, USA
Telephone 919-515-3131
Fax: 919-513-3191
Email: julia_kornegay@ncsu.edu
Cecil D. Nickell
Department of Agronomy, S-308 Turner Hall,
University of Illinois, 1102 South Goodwin
Avenue, Urbana, Illinois 61801 USA
Telephone 1-(217) 333-1279
Email: cnickell@uiuc.edu
John Colvin
Professor of Entomology and Plant-Virus Epidemiology
Natural Resources Institute, University of Greenwich
Chatham, United Kingdom
Telephone 44 (0) 1634-883310
Email: j.colvin@greenwich.ac.uk
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