Mapping Quantitative Trait Loci for Green Bean Traits of Horticultural Importance

摘要

Oregon Bush Blue Lake (BBL) green beans are uniquely different from other snap beans. They possess dark blue-green pods with very low fiber that process well but retain their quality even after long duration in a commercial kitchen. The plants are high yielding and have good cold tolerance during germination and emergence. However BBL beans have poor growth habit and potentially higher off-type frequency than snap beans of Midwest origin. Oregon BBL beans are difficult to recombine with other snap beans. For example, it took Frazier about 20 years to convert Blue Lake beans from pole to bush growth habit (Myers and Baggett, 1999). We initiated this research to determine why BBL beans were difficult to recombine with other snap beans, and how the process might be facilitated.