Resistance to Bemisia tabaci in tomato wild relatives
| Autor: | Ben Vosman, Richard G. F. Visser, Ence Darmo Jaya Supena, Syarifin Firdaus, Nurul Hidayati, Adriaan W. van Heusden |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Introgression
Plant Science Whitefly Horticulture Laboratorium voor Plantenveredeling Pepper whitefly trialeurodes-vaporariorum Genetics insect-resistance biology Resistance (ecology) lycopersicon-hirsutum Antibiosis fungi Plant physiology food and beverages glandular trichomes population-dynamics biology.organism_classification pest resistance Trichome spodoptera-exigua hirsutum-f-glabratum Plant Breeding Agronomy argentifolii homoptera Solanum EPS feeding-behavior Agronomy and Crop Science |
| Zdroj: | Euphytica 187 (2012) 1 Euphytica, 187(1), 31-45 |
| ISSN: | 0014-2336 |
| Popis: | Bemisia tabaci is one of the most threatening pests in agriculture, particularly in Solanaceous crops such as tomato and pepper that are cultivated in the open field. Pesticide application is often not effective and hazardous to humans and environment. The exploitation of plant natural defenses that are present in wild relatives of tomato, may offer a solution. To evaluate resistance parameters and to identify plant material with high levels of resistance, we screened a number of accessions of tomato wild relatives using three methods; a free-choice test in a screenhouse in Indonesia, a no-choice test with clip-on cages in a greenhouse and a leaf disc test in a climate-room in the Netherlands. Antibiosis resulting in low adult survival was the major component for resistance in tomato. However, other resistance component(s) may play a role as well. In some accessions there was a change in the resistance level over time. Several resistance parameters used in the different tests were well correlated. The best resistance source was an accession of Solanum galapagense, which had not been identified as being resistant in the past. This is of particular interest as this species is closely related to the cultivated tomato, which may facilitate introgression of the resistance component(s). Whitefly non-preference and resistance were associated with the presence of type IV trichomes. Other mechanisms might be involved since some accessions without type IV trichomes showed low nymphal density. The leaf disc test is a good in vitro alternative for the clip-on cage whitefly resistance screening, as shown by the high correlation between the results obtained with this test and the clip-on cage test. This offers breeders the possibility to carry out tests more efficiently. |
| Databáze: | OpenAIRE |
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