Plant Molecular Biology

, Volume 48, Issue 5, pp 453–461

Expanding the genetic map of maize with the intermated B73 × Mo17 (IBM) population


  • Michael Lee
    • Department of AgronomyIowa State University
  • Natalya Sharopova
    • Department of AgronomyIowa State University
    • Curtis HallUniversity of Missouri
  • William D. Beavis
    • Pioneer Hi-Bred Intl.
    • National Center for Genome Resources
  • David Grant
    • Pioneer Hi-Bred Intl.
    • USDA-ARS, Department of AgronomyIowa State University
  • Maria Katt
    • Pioneer Hi-Bred Intl.
  • Deborah Blair
    • Pioneer Hi-Bred Intl.
  • Arnel Hallauer
    • Department of AgronomyIowa State University

DOI: 10.1023/A:1014893521186

Cite this article as:
Lee, M., Sharopova, N., Beavis, W.D. et al. Plant Mol Biol (2002) 48: 453. doi:10.1023/A:1014893521186


The effects of intermating on recombination and the development of linkage maps were assessed in maize. Progeny derived from a common population (B73 × 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.

genomicsgenetic mappingintermated populationrecombinationZea mays L.

Copyright information

© Kluwer Academic Publishers 2002