Expanding the genetic map of maize with the intermated B73 x Mo17 (IBM) population.
The effects of intermating on recombination and the development of linkage maps were assessed in maize. Progeny derived from a common population (B73 x Mo17) before and after five generations of intermating were genotyped at the same set of 190 RFLP loci. Intermating resulted in nearly a four-fold increase in the genetic map distance and increased the potential for improved genetic resolution in 91% of the intervals evaluated. This mapping population and related information should connect research involving dense genetic maps, physical mapping, gene isolation, comparative genomics, analysis of quantitative trait loci and investigations of heterosis.
Lee
Michael
M
Iowa State University, Department of Agronomy, Ames 50010, USA. mlee@iastate.edu
Sharopova
Natalya
N
Beavis
William D
WD
Grant
David
D
Katt
Maria
M
Blair
Deborah
D
Hallauer
Arnel
A
D002874:Chromosome Mapping / Q000379:methods*; D002875:Chromosomes / Q000235:genetics; D003433:Crosses, Genetic; D011995:Recombination, Genetic / Q000235:genetics; D003313:Zea mays / Q000235:genetics*