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Traditional Breeding Alters Maize Composition More than Stacking Transgenic Events
Posted by: Prof. Dr. M. Raupp (IP Logged)
Date: April 19, 2017 04:39PM

Dow AgroSciences LLC researchers, led by Rod A. Herman, evaluated the impact
of crossing (stacking)
<[isaaa.us5.list-manage1.com]d9912fca3d624d294e24b28&i
dea794c5a&e?99440571> genetically modified (GM) events on maize grain
biochemical composition and compared it with the impact caused by generating
non-GM hybrids.

The compositional similarity of seven GM stacks containing event DAS-?15?7-1
was compared to their corresponding non-GM near-isogenic hybrids
(iso-hybrids) and to currently grown non-GM hybrids and their iso-hybrids.
Scatter plots were used to visualize comparisons among hybrids.

The composition of GM breeding stacks was found to be more similar to the
composition of their iso-hybrids than to the composition of non-GM hybrids
to their iso-hybrids. Hence, non-GM breeding is more capable of influenced
crop composition than transgenesis or stacking of
<[isaaa.us5.list-manage1.com]d9912fca3d624d294e24b28&i
d073e846f&e?99440571> GM events.

These findings can be grounds to call into question the importance of
requiring composition studies for
<[isaaa.us5.list-manage.com]d9912fca3d624d294e24b28&id
fad530415&e?99440571> GM crops, especially for breeding stacks composed
of GM events previously found to be compositionally similar to iso-hybrids.

[onlinelibrary.wiley.com]



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