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Segregation and linkage relationships of isoenzymes in shortleaf pine (Pinus echinata Mill.)

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Abstract

 Segregation and linkage relationships were analyzed between 28 isoenzyme loci in ten natural stands representing much of the natural range of Pinus echinata Mill. (shortleaf pine). A total of 203 possible two-locus combinations were tested. Three linkage groups were revealed in this study at a linkLOD of 4.0. The first linkage group (A) consisted of Pgi and Adh-1; Gdh, Idh, Skdh-2, G6pd-2 and Aco were mapped to the second linkage group (B); the third group (C) had 2 loci: Mdh-2 and Mdh-3. A moderate linkage between Mnr-2 and Dia-2 and weak linkages between Mnr-1 and Dia-1, and Got-2 and 6pgd-2 were also detected. The significance of these results in shortleaf pine is discussed and compared to linkage maps previously reported in other conifers, including pines.

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Authors and Affiliations

  1. Department of Forestry, Oklahoma State University, Stillwater, OK 74078, USA, , , , , , US

    C. G. Tauer, R. F. Wittwer & Y. Huang

  2. Department of Crop Science, 240 ERML, 1201 W. Gregory Drive, University of Illinois at Urbana. IL6 1801, USA E-mail: varma@uiuc.edu, , , , , , US

    R. G. Raja

Authors
  1. R. G. Raja
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  2. C. G. Tauer
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  3. R. F. Wittwer
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  4. Y. Huang
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Received: 7 April 1997 / Accepted: 25 April 1997

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Raja, R., Tauer, C., Wittwer, R. et al. Segregation and linkage relationships of isoenzymes in shortleaf pine (Pinus echinata Mill.). Theor Appl Genet 95, 1252–1257 (1997). https://doi.org/10.1007/s001220050689

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  • DOI: https://doi.org/10.1007/s001220050689

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