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ARS Home » Pacific West Area » Aberdeen, Idaho » Small Grains and Potato Germplasm Research » Research » Publications at this Location » Publication #115843
Title: QTL ANALYSIS AND GENETIC MAP UPDATE FOR THE OAT CROSS 'OGLE' X 'TAM O-301'

Author
item Hoffman, David
item PORTYENKO, V. - UNIVERSITY OF MINNESOTA
item Holland, Jim - Jim
item LEE, M. - IOWA STATE UNIVERSITY
item Herrin, Lauri
item Peterson, David

Submitted to: Oat International Conference Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 9/15/2000
Publication Date: N/A
Citation: N/A

Interpretive Summary: Oat is an important cereal grain and is used for food, feed, and fiber. As with other crops, detailed genetic maps have been developed for oat using molecular techniques. This study was conducted to use new mapping information to further locate and tag genes controlling traits related to yield and quality and to add more markers to the map.. Several chromosomal regions were identified that likely contained genes that controlling these traits. Some of the regions corresponded to those that were found in previous studies and some did not. These results indicate that more than one mapping population is needed to locate important genes in oats. This information will be useful to oat geneticists and breeders striving to improve the quality and yield potential of oat.

Technical Abstract: Detailed molecular genetic maps of crop species have enabled the detection of quantitative trait loci (QTL)- molecular marker associations. These associations they have identified candidate markers for marker-assisted-selection (MAS) procedures. Our objectives were to use new mapping information to determine QTL-marker associations, and to add more amplified fragment length polymorphism (AFLP) markers to the new 'Ogle' x 'TAM-O301' map. The parents, recombinant inbred lines, and two check cultivars were evaluated for seven agronomic and two seed quality traits in four environments (two years x two locations). Significant QTL-marker associations were found for seven agronomic traits in four environments (two years x two locations). Significant QTL-marker associations were found and these were compared results of a previous study.