25 Diverse Line Mapping Populations

In collaboration with Jim Holland, Mike McMullen, and Major Goodman, we have developed 25 linkage mapping populations from carefully chosen lines that together capture roughly 80% of the SNP diversity in maize. Each of these 25 lines has been crossed to B73, and from these have derived 300 inbred lines. After 5 generations of selfing we have made ~5000 of these Nested Assocations Mapping Recombinant Inbred Lines (NAM-RILs) publically available through the Maize Genetics Cooperation Stock Center.  We have done some initial genotyping on these lines and are sequencing the founders.

These populations should provide a resource that unifies QTL mapping across the maize community, as well as a resource for which almost every trait will show substantial variation in multiple populations.

We are also collecting phenotypic data on these populations. If any the original 25 lines or the 300 inbred lines would be of use to map your trait of interest, please contact Mark Millard .    

B73×B97
B73×CML103
B73×CML228
B73×CML247
B73×CML277
B73×CML322
B73×CML333
B73×CML52
B73×CML69
B73×Hp301
B73×Il14H
B73×Ki11
B73×Ki3
B73×Ky21
B73×M162W
B73×M37W
B73×Mo17
B73×Mo18W
B73×MS71
B73×NC350
B73×NC358
B73×Oh43
B73×Oh7B
B73×P39
B73×Tx303
B73×Tzi8