A genetic analysis of mancozeb resistance in Typhlodromus pyri (Acari:Phytoseiidae)

被引：21

作者：

Auger, P

Bonafos, R

Kreiter, S

Delorme, R

机构：

[1] Ecole Natl Super Agron Montpellier, Unite Ecol Anim & Zool Agricole, Lab Acarolog, F-34060 Montpellier, France

[2] Ecole Natl Super Agron Montpellier, Ctr Transfert, F-34060 Montpellier, France

[3] INRA, Unite Phytopharm & Med Chim, F-78026 Versailles, France

来源：

EXPERIMENTAL AND APPLIED ACAROLOGY | 2005年 / 37卷 / 1-2期

关键词：

genetics; mancozeb; resistance; selection; Typhlodromus pyri;

D O I：

10.1007/s10493-005-1020-5

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

A field population of Typhlodromus pyri ( Acari: Phytoseiidae) tolerant to mancozeb was selected in the laboratory. After 10 mancozeb selections the LC50 value for mancozeb was 73 times higher in the selected-10 strain compared to the standard susceptible strain. A genetic analysis using reciprocal crosses and backcrosses of female F-1 progeny found no maternal effect. Resistance in the selected-10 strain was codominant in expression, dominance value was about -0.1. Backcrosses between F1 females and the susceptible strain indicate that the resistance to mancozeb could be principally conferred by a predominant gene, but additional factors would also be involved.

引用

页码：83 / 91

页数：9

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