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A single linkage group confers dominant resistance to Bacillus thuringiensis δ-endotoxin Cry1Ac in Helicoverpa armigera
被引:7
|作者:
Wu, Y.
[1
]
Vassal, J. -M.
[2
]
Royer, M.
[3
]
Pieretti, I.
[3
]
机构:
[1] Nanjing Agr Univ, Coll Plant Protect, Dept Entomol,Minist Agr, Key Lab Monitoring & Management Plant Dis & Insec, Nanjing 210095, Peoples R China
[2] UPR Acridol, CIRAD, F-34398 Montpellier, France
[3] UMR Acridol, CIRAD, F-34398 Montpellier, France
基金:
中国国家自然科学基金;
关键词:
Bacillus thuringiensis;
Helicoverpa armigera;
Amplified fragment length polymorphism;
Cry1Ac;
dominant resistance;
INSECT RESISTANCE;
CADHERIN ALLELES;
COTTON BOLLWORM;
BT TOXINS;
LEPIDOPTERA;
FIELD;
IDENTIFICATION;
INHERITANCE;
DISRUPTION;
NOCTUIDAE;
D O I:
10.1111/j.1439-0418.2008.01368.x
中图分类号:
Q96 [昆虫学];
学科分类号:
摘要:
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 delta-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.
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页码:375 / 380
页数:6
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