Valerie Williamson vmwilliamson at
Fri Mar 5 11:09:19 EST 1999

Postdoctoral Position

Mechanism of Aphid Resistance Mediated by the Tomato Gene Mi.

The tomato gene Mi, which mediates resistance to both root-knot nematodes
(Meloidogyne spp.) and potato aphids (Macrosiphum euphorbiae), has recently
been cloned.  The encoded protein is a member of the plant resistance gene
family characterized by the presence of a nucleotide binding site and a
leucine-rich repeat.  A postdoctoral position is available to investigate
the mechanism of action of the resistance to potato aphids.  A strong
background with plants and microscopy techniques is highly desirable.
Experience in molecular techniques and interest in pest resistance in
plants is necessary.  Position is available immediately.  Please send
curriculum vitae, transcripts and names of three references to V.
Williamson, Department of Nematology, University of California, Davis. CA
95616 or respond by email to: vmwilliamson at

Rossi, M., Goggin, F.L., Milligan, S.B., Kaloshian, I., Ullman, D.E., and
Williamson, V.M. 1998.  The nematode resistance gene Mi of tomato confers
resistance against the potato aphid.  Proc. Natl. Acad. Sci. USA

Valerie Moroz Williamson
Department of Nematology
University of California
One Shields Avenue
Davis, CA 95616
TEL 530-752-3502
FAX 530-752-5809
vmwilliamson at

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