通过有针对性的植物育种大豆有望开拓新产品和新市场从而带来新的发展机遇.pdf

1、New opportunities for soy through targeted plant breeding for new products and new markets.Tom SluneckaCEO Minnesota Soybean Research&Promotion CouncilWhat have plant breeders accomplished?Higher yieldsReduced lodgingDisease resistance in cropsHerbicide resistanceHigher quality(protein quality maize

2、,pro vitamin A,high oleic sunflower and canola)Better tasteStorabilityAbiotic stress(salt tolerance,drought tolerance)Improved plant stature(semi-dwarf wheat,dwarfing rootstock for apples)Traditional Plant BreedingTraditional Plant BreedingCanola(“Can”,“ola”for“Canada,oil,low acid”)Canola itself is

3、a product of plant breeding.Canola is rapeseed with less than 2%erucic acid,a compound that gives the oil a poor flavor and possible detrimental health effects.Plant breeders at the University of Manitoba bred rapeseed to have less than 2%erucic acid and renamed it Canola.Traditional Plant BreedingT

4、omato harvestabilityUntil the 1960s,tomatoes were primarily hand harvested.Plant breeders and engineers got together in the 1950s to simultaneously develop harvesting equipment and varieties.Called the“square tomato”.Facilitated machine harvest and revolutionized tomato industry.TomatoFruit sizeGrow

5、th habit of different market classesResistance to disease(e.g.,leaf mold resistance transferred from wild tomato)Shelf life/slow ripeningThe seedless watermelon is a result of creative plant breedingTraditional Plant BreedingSource:Botanist in the KitchenGenetic EngineeringIntroducing a new trait th

6、rough genetic engineering Transgenic plantsTransgenic organism-An organism whose genome has been modified through externally applied new DNA.Example:E3 Soybeans,BT Corn,and many moreGene Editing“Field of research dedicated to developing site-directed DNA sequence modification methodologies and appli