Dealing with Environmental Issues of GM Crops in an Isolated Place We Call Home
Journal
Ecological and Environmental Biosafety of Transgenic Plants
Part Of
農業試驗所特刊第126號
Pages
73-92
ISBN
978-986-00-7734-6
986-00-7734-7
Date Issued
2006-12
Date
2006-12
Author(s)
Allis M. Wieczofek
Abstract
Island populations have a much higher risk of extinction than their mainland counterparts for a number of reasons. Particular concern has been voiced that gene flow and hybridization between agricultural crops and native plant species may exacerbate their precarious position, especially if the gene flow occurs from crops developed through recombinant DNA technologies. Horizontal gene transfer (HGT) and vertical gene transfer (VGT) are the two possible ways for gene flow and introgression to occur. VGT is more likely to facilitate gene transfer between agricultural crops and native plant species, although this too is dependent on a variety of factors. In this critical review phylogenetic tribal boundaries were used as a limit to hybridization potential. Overlap was found between agricultural crops and native species in four tribes: Heliantheae, Gossypieae, Solaneae, and Phaseoleae. In each tribe the factors which increase and decrease the likelihood of hybridization were evaluated and distribution analyses performed. In general it is concluded that hybridization potentials are low for most species (except Gossypieae tomentosum which is known to hybridize with its cultivated relatives), however, small scale pollination studies should be performed for each tribe to quantify the risk and to better manage populations of native species.
Event(s)
Proceedings of International Symposium Ecological and Environmental Biosafety of Transgenic Plants
Subjects
Gene flow
Genetically engineered
Hybridization
Introgression
Publisher
農業試驗所
Type
conference paper
File(s)![Thumbnail Image]()
Loading...
Name
publication_no126-9.pdf
Size
1.47 MB
Format
Adobe PDF
Checksum
(MD5):79ed2947302baa604d378c39a8c3e494