Theoretical and Applied Genetics

, Volume 87, Issue 3, pp 379–384

Development of an RFLP linkage map in diploid peanut species

  • T. Halward
  • H. T. Stalker
  • G. Kochert


An RFLP linkage map of peanut has been developed for use in genetic studies and breeding programs aimed at improving the cultivated species (Arachis hypogaea L.). An F2 population derived from the interspecific hybridization of two related diploid species in the sectionArachis (A. stenosperma ×A. cardenasii) was used to construct the map. Both random genomic and cDNA clones were used to develop the framework of the map. In addition, three cDNA clones representing genes coding for enzymes involved in the lipid biosynthesis pathway have been mapped in peanut. Of the 100 genomic and 300 cDNA clones evaluated, 15 and 190, respectively, revealed polymorphisms among the parents of our mapping population. Unfortunately, a large number of these produced complex banding patterns that could not be mapped. Of the 132 markers analyzed for segregation, 117 are distributed among 11 linkage groups, while 15 have not yet been associated with any other marker. A total map distance of approximately 1063 cM has been covered to-date.

Key words

Arachis hypogaea Arachis sp. Restriction fragment length polymorphism Linkage map 


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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • T. Halward
    • 1
  • H. T. Stalker
    • 2
  • G. Kochert
    • 1
  1. 1.Department of BotanyUniversity of GeorgiaAthensUSA
  2. 2.Department of Crop ScienceNorth Carolina State UniversityRaleighUSA
  3. 3.Department of AgronomyColorado State UniversityFort CollinsUSA

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