Clustering methods for determining heterotic patterns using molecular markers

ORNELLA, LA;; MORALES YOKOBORI, ML;; DECKER, V;; NESTARES, G; .; EYHERABIDE, G;; BALZARINI, M

Maize Genetics Cooperation Newsletter

University of Missouri Printing Services on Heidelberg presses

Lugar: Missouri ; Año: 2009 vol. 83 p. 36 - 36

0100-6460

In hybrid maize breeding programs, efficiency of procedures to identify inbreds used to develop outstanding single crosses strongly affects the success of the program. The best hybrid combinations can be identified using information from diallel (which are prohibitive with large numbers of inbreds) or topcrosses to testers  When a large number of germplasm exists but no established heterotic groups are available, genetically similar germplasms can be identified with molecular markers. The purpose of this study was to evaluate the reliability of clustering methods based on molecular marker information to replace and/or complement topcross trials in assigning lines to heterotic groups of temperate germplasm.