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United States Department of Agriculture

Agricultural Research Service

Research Project: Enhancement of Hard Spring Wheat, Durum, and Oat Quality

Location: Cereal Crops Research

Title: Registration of the MN98550/MN99394 Wheat Recombinant Inbred Mapping Population

Authors
item Tsilo, Toi -
item Linkert, Gary -
item Hareland, Gary
item Anderson, James -

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: February 3, 2011
Publication Date: May 1, 2011
Citation: Tsilo, T.J., Linkert, G.L., Hareland, G.A., Anderson, J.A. 2011. Registration of the MN98550/MN99394 Wheat Recombinant Inbred Mapping Population. Journal of Plant Registrations. 5(2):257-260.

Interpretive Summary: A mapping population was developed from two hard red spring wheat experimental breeding lines (MN98550 and MN99394) at the University of Minnesota. This population has 139 recombinant inbred lines and was assigned the USDA-ARS Germplasm Resources Information Network accession nos. GSTR 13301 -13439. The primary objective of developing this mapping population was to identify chromosome regions that impact end-use quality traits in hard red spring wheat lines that are adapted to the Upper Midwest region of the U.S.A. This population will also be useful for studying several important traits including resistance to leaf rust and stem rust fungal diseases, kernel characteristics, and agronomic traits. A genetic map was developed with 531 marker loci covering all 21 chromosomes of wheat. The information obtained from quantitative trait locus/loci analysis was useful in selecting the best recombinant inbred lines as parents in our breeding program.

Technical Abstract: A mapping population was developed from the two hard red spring wheat (Triticum aestivum L.) breeding lines MN98550 and MN99394 at the University of Minnesota. This population has 139 F6:8 recombinant inbred lines (RILs) and was assigned the USDA-ARS Germplasm Resources Information Network (GRIN) accession nos. GSTR 13301 -13439. The primary objective of developing this mapping population was to identify chromosome regions influencing end-use quality traits in hard red spring wheat lines that are adapted to the Upper Midwest region of the U.S.A. This population also segregated for several important traits, including resistance to fungal disease (leaf rust caused by Puccinia triticina f. sp. tritici and stem rust caused by P. graminis f. sp.tritici), kernel characteristics, and agronomic traits. The population was genotyped with diversity array technology (DArT) and simple sequence repeat (SSR) markers, and the genetic map was composed of 531 marker loci covering all 21 chromosomes of wheat. The information obtained from quantitative trait locus/loci (QTL) analysis was useful in selecting the best RILs as parents in our breeding program.

Last Modified: 7/25/2014
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