One dominant gene conferring the resistance to the leafminer, Liriomyza trifolii (Burgess) Diptera : Agromyzidae, in melon (Cucumis melo L.)
The fine Nantais Oblong, a melon of Charentais type, was shown to be a source of resistance by antibiosis to the leafminer, #Liriomyza trifolii# (Burgess), Diptera, Agromyzidae. We studied the genetic control of this resistance in F2 and back-cross progenies from the cross between Nantais Oblong and Védrantais, a Charentais line susceptible to the leafminer. Tests were carried out on young plants in plastic cages with controlled infestation. Complete mortality of the #L. trifolii# larvae was used as indicator of plant resistance. Segregation ratios were consistent with monogenic dominant control of the resistance. The symbol #Lt# for #Liriomyza trifolii# resistance is proposed.
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| Main Authors: | , , , , |
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| Format: | article biblioteca |
| Language: | eng |
| Subjects: | F30 - Génétique et amélioration des plantes, H10 - Ravageurs des plantes, Cucumis melo, gène dominant, résistance aux organismes nuisibles, Liriomyza trifolii, http://aims.fao.org/aos/agrovoc/c_2003, http://aims.fao.org/aos/agrovoc/c_2361, http://aims.fao.org/aos/agrovoc/c_5731, http://aims.fao.org/aos/agrovoc/c_30432, http://aims.fao.org/aos/agrovoc/c_3081, |
| Online Access: | http://agritrop.cirad.fr/401135/ http://agritrop.cirad.fr/401135/1/401135.pdf |
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| Summary: | The fine Nantais Oblong, a melon of Charentais type, was shown to be a source of resistance by antibiosis to the leafminer, #Liriomyza trifolii# (Burgess), Diptera, Agromyzidae. We studied the genetic control of this resistance in F2 and back-cross progenies from the cross between Nantais Oblong and Védrantais, a Charentais line susceptible to the leafminer. Tests were carried out on young plants in plastic cages with controlled infestation. Complete mortality of the #L. trifolii# larvae was used as indicator of plant resistance. Segregation ratios were consistent with monogenic dominant control of the resistance. The symbol #Lt# for #Liriomyza trifolii# resistance is proposed. |
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