Biologia Plantarum

, Volume 54, Issue 1, pp 54–60 | Cite as

Comparison of three genetic similarity coefficients based on dominant markers from predominantly self-pollinating species

  • A. Beharav
  • M. Maras
  • M. Kitner
  • J. Šuštar-Vozlič
  • G. L. Sun
  • I. Doležalová
  • A. Lebeda
  • V. Meglič
Original Papers


Three genetic similarity coefficients were estimated and compared for their usefulness: simple matching (S SM), Jaccard’s (S J) and Dice’s (S D), all based on dominant markers data from individuals representing predominantly self-pollinating species. AFLP markers were used to analyze 139 Phaseolus vulgaris L. (common bean) and 67 Lactuca saligna L. (least lettuce) accessions, and RAPD markers were used to analyze 110 Triticum dicoccoides Koern. (wild emmer wheat) accessions. Similar discriminating structure and power based on the three genetic similarity coefficients was found for each of the three species. This discriminating power was high for both P. vulgaris and L. saligna but moderate for T. dicoccoides. With closely related individuals, as in our study, the absence of a band in two individuals should be due to an identical cause inherited from the same ancestor. Accordingly we propose the use of S SM, which alone out of the three examined coefficients involved shared absence of DNA bands, as contributing to genetic similarity. When RAPDs are employed, inferences about population structure and nucleotide divergence should be made with prudence as the nature of genetic variation uncovered by RAPDs is often unclear.

Additional key words

closely related individuals Lactuca saligna negative matches Phaseolus vulgaris Triticum dicoccoides 



amplified fragment length polymorphism


cophenetic correlations coefficients




operational taxonomic unit


random amplified polymorphic DNA




unweighted pair group method with the arithmetic averages


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The molecular work for this research was supported by grant MSM 6198959215 (Ministry of Education, Youth and Sports of the Czech Republic); in part by grant J4-9476-0401-06 from the Slovenian Research Agency; and by a postdoctoral grant from the Israeli Council of Higher Education to G.L. Sun.


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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • A. Beharav
    • 1
  • M. Maras
    • 2
  • M. Kitner
    • 3
  • J. Šuštar-Vozlič
    • 2
  • G. L. Sun
    • 4
  • I. Doležalová
    • 3
  • A. Lebeda
    • 3
  • V. Meglič
    • 2
  1. 1.Institute of EvolutionUniversity of HaifaMount Carmel, HaifaIsrael
  2. 2.Agricultural Institute of SloveniaLjubljanaSlovenia
  3. 3.Faculty of SciencePalacký University in OlomoucOlomouc-HoliceCzech Republic
  4. 4.Biology DepartmentSaint Mary’s UniversityHalifaxCanada

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