Gene flow from cultivated rice (Oryza sativa) to its weedy and wild relatives.

ABSTRACT:

Background and aims

Transgene escape through gene flow from genetically modified (GM) crops to their wild relative species may potentially cause environmental biosafety problems. The aim of this study was to assess the extent of gene flow between cultivated rice and two of its close relatives under field conditions.

Methods

Experiments were conducted at two sites in Korea and China to determine gene flow from cultivated rice (Oryza sativa L.) to weedy rice (O. sativa f. spontanea) and common wild rice (O. rufipogon Griff.), respectively, under special field conditions mimicking the natural occurrence of the wild relatives in Asia. Herbicide resistance (bar) and SSR molecular finger printing were used as markers to accurately determine gene flow frequencies from cultivated ri

SUBMITTER: Chen LJ 

PROVIDER: S-EPMC4242260 | biostudies-literature | 2004 Jan

REPOSITORIES: biostudies-literature