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EVIDENCE FOR LANDSCAPE LEVEL, POLLEN-MEDIATED GENE FLOW FROM CREEPING BENTGRASS WITH CP4 EPSPS AS A MARKER
Citation:
Watrud, L S., E H. Lee, A Fairbrother, C. A. Burdick, J R. Reichman, M. Bollman, M. J. Storm, G. A. King, AND P. Van De Water. EVIDENCE FOR LANDSCAPE LEVEL, POLLEN-MEDIATED GENE FLOW FROM CREEPING BENTGRASS WITH CP4 EPSPS AS A MARKER. PNAS (PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES). National Academy of Sciences, WASHINGTON, DC, 101(40):14533-14538, (2004).
Description:
In a landscape level study, gene flow via pollen was tracked from multiple source fields of genetically modified (GM) herbicide resistant creeping bentgrass (Agrostis stolonifera L.) to 75 of 138 sentinel plants of A. stolonifera and to 29 of 69 resident populations of Agrostis spp. Gene flow frequencies of 2.0% and 0.03% were observed in seedling progeny of sentinel plant and resident populations respectively. Gene flow evidence was based on survival after Round-Up? treatment, TraitChek? tests, PCR and sequencing data. Maximal distances at which gene flow was observed was 21 km in sentinel plants and 14 km in resident populations.