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The Root Knot Nematode Resistance Gene Mi from Tomato Is a Member of the Leucine Zipper, Nucleotide Binding, Leucine-Rich Repeat Family of Plant Genes
- S. Milligan, J. Bodeau, Jafar Yaghoobi, I. Kaloshian, P. Zabel, V. Williamson
- Medicine, BiologyPlant Cell
- 1 August 1998
The Mi locus of tomato confers resistance to root knot nematodes, and three open reading frames were identified with similarity to cloned plant disease resistance genes, including Prf, a tomato gene required for resistance to Pseudomonas syringae.
The nematode resistance gene Mi of tomato confers resistance against the potato aphid.
- M. Rossi, F. Goggin, S. Milligan, I. Kaloshian, D. Ullman, V. Williamson
- Biology, MedicineProceedings of the National Academy of Sciences…
- 18 August 1998
It is shown that Mi is expressed in leaves, that aphid resistance is isolate-specific, and that susceptible tomato transformed with Mi is resistant to the same aphid isolates as the original resistant lines.
Nematode pathogenesis and resistance in plants.
Nematodes comprise a large phylum of animals that includes plant and animal parasites as well as many free-living species, and the Heteroderidae can be divided into two groups: the cyst nematodes, which include the genera Heterodera and Globodera; and the root-knot nematode, which is the most economic damage worldwide.
Sequence and genetic map of Meloidogyne hapla: A compact nematode genome for plant parasitism
- C. Opperman, D. Bird, E. Windham
- BiologyProceedings of the National Academy of Sciences
- 30 September 2008
Meloidogyne hapla is established as a tractable model plant-parasitic nematode amenable to forward and reverse genetics, and a complete genome sequence is presented that defines a platform to elucidate mechanisms of parasitism by what is the largest uncontrolled group of plant pathogens worldwide.
Evidence for a Role of the N Terminus and Leucine-Rich Repeat Region of the Mi Gene Product in Regulation of Localized Cell Death
- C. Hwang, Amit V. Bhakta, G. M. Truesdell, Waclawa M. Pudlo, V. Williamson
- BiologyPlant Cell
- 1 August 2000
The phenotypes of chimeric constructs of the tomato Mi gene indicate that the LRR region of Mi-1.2 has a role in signaling localized cell death and that the N-terminal 161 amino acids have arole in regulating this death.
Nematode resistance in plants: the battle underground.
The root-knot nematode resistance gene Mi-1.2 of tomato is responsible for resistance against the whitefly Bemisia tabaci.
- G. Nombela, V. Williamson, M. Muñiz
- Biology, MedicineMolecular plant-microbe interactions : MPMI
- 1 July 2003
The tomato gene Mi-1.2 is unique among characterized resistance genes in its activity against three very different organisms (root-knot nematodes, aphids, and whiteflies), making Mi a valuable resource in integrated pest management programs.
Root-knot nematode resistance genes in tomato and their potential for future use.
- V. Williamson
- Biology, MedicineAnnual review of phytopathology
Analysis of transgenic plants revealed the unexpected result that Mi also confers resistance to potato aphids, providing a resource for broadening the base of root-knot nematode resistance in tomato and other crops.
Application of Pluronic gel to the study of root-knot nematode behaviour
Observations demonstrate that Pluronic gel is a useful medium for dissecting attraction of root-knot nematodes to their hosts and for studying additional aspects of their behaviour.
A PCR-based marker tightly linked to the nematode resistance gene, Mi, in tomato
- V. Williamson, J. Y. Ho, F. Wu, N. Miller, I. Kaloshian
- Biology, MedicineTheoretical and Applied Genetics
- 1 February 1994
A PCR-based codominant marker has been developed which is tightly linked to Mi, a dominant genetic locus in tomato that confers resistance to several species of root-knot nematode, and allows screening of germplasm where the linkage between Mi and Aps-1 has been lost.