ARS | Publication request: QTL ANALYSIS FOR YIELD IN A SOYBEAN POPULATION DERIVED FROM EXOTIC GERMPLASM. AGRONOMY MEETINGS, CHARLOTTE, NC, OCT 2001.

Submitted to: Agronomy Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: July 31, 2001
Publication Date: N/A

Technical Abstract: This study was initiated to evaluate exotic soybean germplasm as a source of genes for the improvement of elite soybean germplasm. A population was developed by crossing lines of elite and exotic origin. Agronomic traits including date of flowering, date of maturity, plant height, lodging and seed yield were evaluated in replicated field trials at multiple locations in 2000. A genetic linkage map was constructed using simple sequence repeat (SSR) markers that span the 20 linkage groups of the soybean genome. Significant quantitative trait loci (QTL) were detected using single marker-trait analysis and interval mapping. QTL introgressed from the exotic germplasm with positive effects on yield were identified. These results suggest that there may be useful genes for yield in exotic soybean germplasm.