Variability in the Response of Macrosiphum euphorbiae and Myzus persicae (Hemiptera: Aphididae) to the Tomato Resistance Gene Mi

By F. Goggin, V. Williamson, D. Ullman. 2001

112 citations recorded by the source corpus.

Abstract Mi is a dominant locus in tomato that confers resistance to both root knot nematodes, Meloidogyne spp., and potato aphids, Macrosiphum euphorbiae (Thomas). The goal of this study was to investigate the breadth of Mi-mediated aphid resistance. To examine variability in potato aphid response, the effect of Mi on seven isolates of the potato aphid from California, New Jersey, North Carolina, France, and The Netherlands was measured in greenhouse bioassays. Assays were also performed to determine if Mi impacted another aphid species that attacks tomato, Myzus persicae (Sulzer). Tomato varieties carrying Mi had a profound negative impact on the potato aphid isolates from France and The Netherlands. In contrast, other potato aphid isolates from New Jersey, North Carolina, and California proved to be virulent, or capable of overcoming Mi. Mi-mediated resistance also did not extend to the green peach aphid isolates tested. These results demonstrate that Mi-mediated aphid resistance is isolate-specific, and it may not extend to all aphid species. Our data also show that virulent potato aphids are geographically widespread, and, unlike virulent nematode isolates, are relatively common. Virulence is persistent and is maintained even in the absence of selection pressure by Mi. The response of a particular aphid isolate to Mi could not be predicted on the basis of aphid color, because both avirulent and virulent isolates were found within the pink and green biotypes of the potato aphid.

Subfields: Insect Science, Molecular Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/c5ba4945852d133b45ed98276f6de66c81bf0ab4

How researchers see this paper

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In Insect Science

1. Owain Edwards
2. Karam B. Singh
3. J. Gatehouse
4. E. Guerrieri
5. Maria Cristina Digilio
6. M. Maffei
7. G. Howe

In Molecular Biology

1. Karam B. Singh
2. J. Gatehouse

In Plant Science

1. Owain Edwards
2. Karam B. Singh
3. J. Gatehouse
4. Maria Cristina Digilio
5. M. Maffei
6. G. Howe

Citations in the corpus

• Effects of jasmonate‐induced defenses in tomato on the potato aphid, Macrosiphum euphorbiae (2005, unknown): “The potato aphid isolate WU11 was utilized for all our experiments (Goggin et al., 2001).”
• Resistance to insect pests: What do legumes have to offer? (2006, background): “Though not yet a problem in alfalfa/lucerne, aphid virulence is a documented problem for potato aphid (Macrosiphum euphorbiae (Thomas)) on tomato and for Russian wheat aphid (Diuraphis noxia (Mordvilko)) on wheat, and as such these resistant lines may not be sustainable (Goggin et al., 2001; Smith e”
• Plant resistance towards insect herbivores: a dynamic interaction. (2002, background): “…to the resistance caused by Mi, and the Mi-mediated resistance towards Macrosiphum euphorbiae is specific towards certain biotypes of the pest (Goggin et al., 2001), in a manner similar to the classical gene-for-gene virulence/avirulence relationships observed between plants and fungal…”
• Aphid-plant interactions: a review (2008, background): “However, as mentioned for highly toxic compounds, this type of resistance exerts a high ecological pressure on target species and for this reason aphid populations have ‘evolved’ a counter resistance to the Mi 1.2 (Goggin et al. 2001).”