Potential factors impacting season-long expression of Cry1Ac in 13 commercial varieties of Bollgard® cotton

AUTOR(ES)

Adamczyk, John J.

FONTE

University of Arizona Library

RESUMO

Thirteen commercial varieties of transgenic Cry1Ac Bacillus thuringiensis Berliner (Bt) cotton were examined across two sites in 2000 for potential factors that impact endotoxin expression. In all cases, two varieties (NuCOTN 33B and DP 458B/RR, Delta & Pineland Co., Scott, MS) expressed more Cry1Ac than the other 11 varieties in various plant structures. These two varieties share the same parental background (DP 5415). Furthermore, when the next generation of plants were tested in the greenhouse, the same varietal patterns were exhibited. These data strongly suggest that factors such as parental background had a stronger impact on the expression of Cry1Ac than the environment.

Documentos Relacionados

• An In Vivo Analysis of the Effect of Season-Long Open-Air Elevation of Ozone to Anticipated 2050 Levels on Photosynthesis in Soybean1
• Role of Proteolysis in Determining Potency of Bacillus thuringiensis Cry1Ac δ-Endotoxin
• Biosafety of Cry1Ac protein, synthesized by the genetically modified cotton, on stingless bees and honeybees
• Dual Resistance to Bacillus thuringiensis Cry1Ac and Cry2Aa Toxins in Heliothis virescens Suggests Multiple Mechanisms of Resistance
• Parâmetros biológicos da lagarta falsa-medideira em cultivares de algodoeiro com as proteínas Cry1Ac e Cry1F