Theoretical and Applied Genetics

, Volume 91, Issue 6–7, pp 964–971 | Cite as

A linkage map with RFLP and isozyme markers for almond

  • M. A. Viruel
  • R. Messeguer
  • M. C. de Vicente
  • J. Garcia-Mas
  • P. Puigdomènech
  • F. Vargas
  • P. Arús


Inheritance and linkage studies were conducted with seven isozyme genes and 120 RFLPs in the F1 progeny of a cross between almond cultivars ‘Ferragnes’ and ‘Tuono’. RFLPs were detected using 57 genomic and 43 cDNA almond clones. Eight of the cDNA probes corresponded to known genes (extensin, prunin (2), α-tubulin, endopolygalacturonase, oleosin, actin depolymerizing factor and phosphoglyceromutase). Single-copy clones were found more frequently in the cDNA (65%) than in the genomic libraries (26%). Two maps were elaborated, one with the 93 loci heterozygous in ‘Ferragnes’ and another with the 69 loci heterozygous in ‘Tuono’. Thirty-five loci were heterozygous in both parents and were used as bridges between both maps. Most of the segregations (91%) were of the 1∶1 or 1∶1∶1∶1 types, and data were analyzed as if they derived from two backcross populations. Eight linkage groups covering 393 cM in ‘Ferragnes’ and 394 in ‘Tuono’ were found for each map. None of the loci examined in either map was found to be unlinked. Distorted segregation ratios were mainly concentrated in two linkage groups of the ‘Ferragnes’ map.

Key words

Almond Prunus amygdalus Isozymes RFLPs Genetic maps 


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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • M. A. Viruel
    • 1
  • R. Messeguer
    • 1
  • M. C. de Vicente
    • 1
  • J. Garcia-Mas
    • 2
  • P. Puigdomènech
    • 2
  • F. Vargas
    • 3
  • P. Arús
    • 1
  1. 1.Departament de Genètica VegetalInstitut de Recerca i Tecnologia Agroalimentàries (IRTA)Cabrils (Barcelona)Spain
  2. 2.Consejo Superior de Investigaciones Cientifícas (CSIC), Departament de Genètica MolecularCentre d'Investigació i Desenvolupament de BarcelonaBarcelonaSpain
  3. 3.Departament d'Arboricultura MediterràniaInstitut de Recerca i Tecnologia Agroalimentàries (IRTA)Reus (Tarragona)Spain

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