Theoretical and Applied Genetics

, Volume 100, Issue 2, pp 190–198 | Cite as

Comparative mapping reveals a complex relationship between the pearl millet genome and those of foxtail millet and rice

  • K. M. Devos
  • T. S. Pittaway
  • A. Reynolds
  • M. D. Gale
Original Article

Abstract 

Comparative genetic maps were constructed of the pearl millet genome with foxtail millet and used to describe the homoeology between the genomes of pearl millet, foxtail millet and rice. Despite the close taxonomic relationship of pearl and foxtail millet, their genomes were highly, rearranged. A comparison of the millet and rice genomes indicated that most of these rearrangements were likely to have taken place in pearl millet. Two duplications were identified in pearl millet. A duplication between the distal segments of linkage groups 1 and 4 corresponds to the ancient duplication previously identified between rice chromosome arms 11S and 12S and foxtail millet chromosomes VII and VIII. The other putative duplication, also between regions of linkage groups 1 and 4, is likely to be species-specific. The exploitation of the comparative maps in pearl millet research is discussed.

Key words Colinearity Comparative maps Foxtail millet Grasses Oryza Pearl millet Pennisetum glaucum Rice Setaria 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • K. M. Devos
    • 1
  • T. S. Pittaway
    • 1
  • A. Reynolds
    • 1
  • M. D. Gale
    • 1
  1. 1.John Innes Centre, Norwich Research Park, Colney, Norwich NR4 7UH, UK e-mail: Katrien.devos@bbsrc.ac.uk Fax: +44 1603 502 241GB

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