A single linkage group confers dominant resistance to Bacillus thuringiensis d-endotoxin Cry1Ac in Helicoverpa armigera

The BKBT strain of Helicoverpa armigera was derived from a susceptible BK77 strain (collected from Bouake, Cote D'Ivoire in 1977) through 30 generations of selection with activated Bacillus thuringiensis d-endotoxin Cry1Ac. Unlike recessive inheritance of Cry1Ac resistance in H. armigera from previous reports, resistance to activated Cry1Ac in the BKBT strain is dominant. A backcross approach was used to map dominant resistance to Cry1Ac in the BKBT strain. One hundred and forty-seven informative amplified fragment length polymorphism (AFLP) DNA markers covered all 31 linkage groups of H. armigera. Five AFLP markers linked to Cry1Ac resistance in the BKBT strain were on the same autosomal linkage group, which is the only linkage group contributing dominant Cry1Ac resistance in the BKBT strain of H. armigera.

Bibliographic Details

Main Authors:	Wu, Y., Vassal, Jean-Michel, Royer, Monique, Pieretti, Isabelle
Format:	article biblioteca
Language:	eng
Subjects:	H10 - Ravageurs des plantes, F30 - Génétique et amélioration des plantes, Helicoverpa armigera, Gossypium, polymorphisme génétique, résistance aux organismes nuisibles, plante transgénique, génie génétique, Bacillus thuringiensis, http://aims.fao.org/aos/agrovoc/c_30255, http://aims.fao.org/aos/agrovoc/c_3335, http://aims.fao.org/aos/agrovoc/c_24031, http://aims.fao.org/aos/agrovoc/c_5731, http://aims.fao.org/aos/agrovoc/c_27619, http://aims.fao.org/aos/agrovoc/c_15974, http://aims.fao.org/aos/agrovoc/c_761, http://aims.fao.org/aos/agrovoc/c_4027,
Online Access:	http://agritrop.cirad.fr/550528/ http://agritrop.cirad.fr/550528/1/document_550528.pdf
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