Intended Effect: Increased Carotenoids in Seeds

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Overexpression of phytoene synthase gene in Arabidopsis resulted in delayed germination, increased levels of chlorophyll, and changes in relative levels of carotenoids.

Canola plants over-expressing a bacterial phytoene synthase gene also had a reduced level of chlorophyll, changed structure of plastids, changed composition of fatty acids, and delayed germination.