Theoretical and Applied Genetics

, Volume 58, Issue 2, pp 161–170

Isozymic gene linkage map of the tomato: Applications in genetics and breeding

  • S. D. Tanksley
  • C. M. Rick
Article

DOI: 10.1007/BF00279708

Cite this article as:
Tanksley, S.D. & Rick, C.M. Theoret. Appl. Genetics (1980) 58: 161. doi:10.1007/BF00279708

Summary

New linkage data are presented for the situation of five previously unlocated isozymic loci of the tomato and closely related species with homosequential chromosomes.Prx-1 lies on chromosome 1, where it is also linked withSkdh-1; Aps-2 is linked withGot-4 on chromosome 8;Tpi-2 has been allocated to chromosome 4; and a linkage has been detected betweenPgi-1 andEst-4, whose respective chromosome has not yet been determined. These and previously published data have been summarized in the form of an isozyme linkage map. Twenty-two loci have thus been mapped on nine of the twelve tomato chromosomes. We discuss some new applications of mapped isozymic genes. In certain types of segregations, isozymic genes are far more efficient than morphological markers in providing linkage information. They greatly expedite the cytogenetic investigation of species hybrids and can be utilized to facilitate backcross transfers of genes from wild to cultivated taxa.

Key words

Isozymes Linkages Lycopersicon Interspecific transfers Trisomic analysis 

Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • S. D. Tanksley
    • 1
  • C. M. Rick
    • 1
  1. 1.Department of Vegetable CropsUniversity of CaliforniaDavisUSA

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