Genetic flexibility of plant chloroplasts

Jürg E. Frey ()
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Jürg E. Frey: Swiss Federal Research Station for Fruit-Growing, Viticulture and Horticulture

Nature, 1999, vol. 398, issue 6723, 115-116

Abstract: Abstract The chloroplast genome is thought to be monomorphic, or genetically uniform within individual plants1. But a single plant cell may contain several hundred chloroplasts, each containing up to 900 copies of DNA2, so there is a huge potential for accumulating and maintaining mutations. I found that the chloroplast genome of common groundsel, Senecio vulgaris,is polymorphic for a point mutation that confers resistance to triazine herbicides.Moreover, this polymorphism can vary within and among different leaves of a single plant.

Date: 1999
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DOI: 10.1038/18139

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