NDLI: A secondary effect of transformation in Rhizobium leguminosarum transgenic for Bacillus thuringiensis subspecies tenebrionisδ-endotoxin (cryIIIA) genes. Part 2

Content Provider	Springer Nature Link
Author	Giddings, G. Mytton, L. Taylor, L. Thomas, S. Allen, D. Skøt, L.
Copyright Year	2000
Abstract	Rhizobium leguminosarum strains were produced for the biological control of Sitona larvae by introducing Bacillus thuringiensis subspecies tenebrionis delta-endotoxin genes (cryIIIA). Comparisons between a transgenic and parent strain show that transformation has induced changes not associated with the intended function of the transgene. Although growth rates in laboratory cultures are similar for both strains the ability to compete for nodule sites is greater in the transgenic than in the non-transformed parent strain, a character that has remained stable over 4 years. This increased ability, which was previously observed in axenic culture, is shown here to also occur in non-sterile soil, although the effect is less pronounced than in sterile conditions. Experiments in soil show a highly significant difference from the expected nodule occupancy ratio, assuming no difference between genotypes and with no significant variation between replicates. These results demonstrate that the ecological and agronomic characters of transgenics might be unexpectedly altered by transformation. Such characters might have a bearing on the safety and/ or success of transgenics released into the environment.
Starting Page	820
Ending Page	823
Page Count	4
File Format	PDF
ISSN	00405752
Journal	Theoretical and Applied Genetics
Volume Number	100
Issue Number	5
e-ISSN	14322242
Language	English
Publisher	Springer-Verlag
Publisher Date	2000-03-28
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Biotechnology Agronomy and Crop Science

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A secondary effect of transformation in Rhizobium leguminosarum transgenic for Bacillus thuringiensis subspecies tenebrionisδ-endotoxin (cryIIIA) genes

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A secondary effect of transformation in Rhizobium leguminosarum transgenic for Bacillus thuringiensis subspecies tenebrionisδ-endotoxin (cryIIIA) genes. Part 2

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