Registration of the Louise/Alpowa Wheat Recombinant Inbred Line Mapping Population

A mapping population was developed from the cross of soft white spring wheat (Triticum aestivum L.) cultivars 'Louise' and 'Alpowa' for use in investigating the genetic architecture of drought tolerance in the US Pacific Northwest. The Louise/Alpowa (Reg. No. MP-8, NSL 520824 MAP) recombinant inbred line mapping population was developed through single seed descent from the F-2 generation to the F-5 generation. The population consists of 141 F-5:6 recombinant inbred lines, of which 132 were used to construct the genetic linkage map. The 32 linkages groups included 882 single nucleotide polymorphism markers and one simple sequence repeat marker spanning 18 of 21 chromosomes. The Louise/Alpowa population was characterized for variation in agronomic traits, phenology, and end-use quality traits. This population will be used for identification and introgression of multiple loci providing resistance to environmental stress such as drought, stripe rust, and high temperatures.