Inheritance of Resistance to Bt by Europ. Corn Borer

Moses Clarke 123moses2clarke9878 at my-deja.com
Sun Jun 11 03:55:58 EST 2000


Moses here: This is hardly a surprise. Not all mutations are recessive
and nor are all traits. It is only a matter of time that nature will
find a way around any pesticide unless it is absolutely lethal to
everything all the time. Of course such a pesticide would be to toxic.
The specific point is interesting so thanks for the posting.

In article <20000530175843.03425.00000697 at ng-fo1.aol.com>,
  rcjohnsen at aol.com (Rcjohnsen) wrote:
> Botany
>
> Inheritance of Resistance to Bacillus thuringiensis Toxin (Dipel ES)
in the
> European Corn Borer
>
> F. Huang, 1  L. L. Buschman, 1  R. A. Higgins, 1*  W. H. McGaughey 2
> Resistance in the European corn borer, Ostrinia nubilalis (Hübner), to
a
> commercial formulation of Bacillus thuringiensis (Bt) Berliner toxin,
Dipel ES,
> appears to be inherited as an incompletely dominant autosomal gene.
This
> contrasts with the inheritance of resistance to Bt in other insects,
where it
> has usually been characterized as a recessive trait. The proposed
> high-dose/refuge strategy for resistance management in Bt maize
depends on
> resistance being recessive or partially recessive. If field resistance
turns
> out to be similar to this laboratory resistance, the usefulness of the
> high-dose/refuge strategy for resistance management in Bt maize may be
> diminished.
> 1 Department of Entomology, Kansas State University, Manhattan, KS
66506, USA.
> 2 U.S. Department of Agriculture, Agricultural Research Service Grain
Marketing
> and Production Research Center, 1515 College Avenue, Manhattan, KS
66502, USA
> (retired).
> *   To whom correspondence should be addressed. E-mail:
> rhiggins at oz.oznet.ksu.edu
>
> Science 284:965-967  7 May 1999
>
>
------------------------------------------------------------------------
>
>


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