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Genetic variability in Plantago species in relation to their ecology

Part 1: Genetic analysis of the allozyme variation in P. major subspecies

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Summary

A survey of enzyme variability in several populations of Plantago major in the Netherlands has been made. Nine of 36 loci were found to be polymorphic. The most extensively studies population showed 7 polymorphic loci (19%). The average heterozygosity was 0.005, a low value since P. major is predominantly inbreeding; a first estimate of the outcrossing rate is only 10%. All nine variable loci show simple Mendelian inheritance, seven of them could be placed into four different linkage groups. Marked differences in allele frequencies were found between two subspecies: ssp. major and ssp. pleiosperma. Two enzyme loci possess subspecies-specific alleles, Pgm-1 and Got-1. The most likely explanation of this phenomenon is the existence of fitness differences, caused either by the enzyme loci themselves or by linked loci.

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Authors and Affiliations

  1. Department of Genetics, Biology Center, University of Groningen, Haren, The Netherlands

    H. van Dijk & W. van Delden

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  1. H. van Dijk
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  2. W. van Delden
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Communicated by R.W. Allard

Grassland Species Research Group Publication no. 14

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van Dijk, H., van Delden, W. Genetic variability in Plantago species in relation to their ecology. Theoret. Appl. Genetics 60, 285–290 (1981). https://doi.org/10.1007/BF00263720

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  • DOI: https://doi.org/10.1007/BF00263720

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