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Population structure and pattern of geographic variation in Muscari comosum along its range of distribution

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Abstract

Genetic variation for six loci in 37 populations of Muscari comosum L. (Liliaeeae) is surveyed. One locus is monomorphic and identical in all the populations. The remaining loci are polymorphic. Although the GOT-1 and GOT-3 loci show a pronounced heterozygote deficit explained by selection acting upon these loci (or on genes linked to them), the remaining loci nearly conform to Hardy-Weinberg proportions. The overall pattern shows a low level of heterozygote deficit (FIS=0.08) explained by the mixed mating system. The organization of genetic variation shows a low level of interpopulation differentiation (FST or GST=0.04). At the same time, autocorrelation analysis shows no pattern of geographical variation. It is concluded that gene flow and selection interact to produce the overall pattern of genetic variation.

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Authors and Affiliations

  1. Dept. de Biología Animal, Ecologia y. Genética, Colegio Universitario de Almería, 04071, Almería, Spain

    D. fnLópez Alonso

  2. Dept. de Biología Animal, Ecología y Genética, Fac. de Ciencias, 18071, Granada, Spain

    L. Pascual Reguera

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Alonso, D.f., Reguera, L.P. Population structure and pattern of geographic variation in Muscari comosum along its range of distribution. Genetica 78, 39–49 (1986). https://doi.org/10.1007/BF00058673

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