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Applied and Environmental Microbiology, February 2001, p. 979-981, Vol. 67, No. 2
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.2.979-981.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Mannose Phosphate Isomerase Isoenzymes in Plutella xylostella Support Common Genetic Bases of Resistance to Bacillus thuringiensis Toxins in Lepidopteran Species

Salvador Herrero, Juan Ferré, and Baltasar Escriche*

Department of Genetics, University of Valencia, 46100-Burjassot (Valencia), Spain

Received 2 June 2000/Accepted 14 November 2000

A strong correlation between two mannose phosphate isomerase (MPI) isoenzymes and resistance to Cry1A toxins from Bacillus thuringiensis has been found in a Plutella xylostella population. MPI linkage to Cry1A resistance had previously been reported for a Heliothis virescens population. The fact that the two populations share similar biochemical, genetic, and cross-resistance profiles of resistance suggests the occurrence of homologous resistance loci in both species.

* Corresponding author. Mailing address: Department of Genetics, University of Valencia, Dr. Moliner 50, 46100-Burjassot (Valencia), Spain. Phone: (34) 96 386 4506. Fax: (34) 96 398 3029. E-mail: escrichb{at}uv.es.

Applied and Environmental Microbiology, February 2001, p. 979-981, Vol. 67, No. 2
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.2.979-981.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.




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