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Plant Systematics and Evolution

, Volume 234, Issue 1–4, pp 53–70 | Cite as

Hybridization between the peat mosses, Sphagnum capillifolium and S. quinquefarium (Sphagnaceae, Bryophyta) as inferred by morphological characters and isozyme markers

  • N. Cronberg
  • R. Natcheva

Abstract.

 Isozyme markers and morphological characters were studied in four populations of Sphagnum capillifolium and S. quinquefarium. Recombinant plants were found in three populations, where the two species occur sympatrically. All recombinants possessed different haplotypes and combinations of morphological characters, which show that they are results of independent hybridization events. Strongly male-biased sex ratios were found for Sphagnum capillifolium in all populations where it grew sympatrically with S. quinquefarium. Most of the recombinants were also male fertile. These observations suggest that S. quinquefarium is the female parent in the primary crosses and in subsequent backcrosses.

Key words: Sphagnum capillifolium (Ehrh.) Hedw., S. quinquefarium (Braithw.) Warnst., hybridization, morphology, isozymes, sex expression. 

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Copyright information

© Springer-Verlag Wien 2002

Authors and Affiliations

  • N. Cronberg
    • 1
  • R. Natcheva
    • 2
  1. 1.Department of Systematic Botany, Lund University, Lund, SwedenSE
  2. 2.Institute of Botany, Bulgarian Academy of Sciences, Sofia, BulgariaBG

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