Article Abstract:
The electrophoretic analysis of 18 allozyme loci was used to estimate the levels and structuring of genetic variation within and among natural populations of the protected endemic palm species from the Canary Islands. It is used to evaluate its relationship with the widespread congener P. dactylifera, and to assess comparatively the genetic variation in the populations where the two species coexist with morphologically intermediate plants.
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Article Abstract:
The influence of male sterility and colonization history on the genetic diversity in populations of Kallstroemia grandiflora along the Pacific of Mexico is investigated. Results demonstrate that females have a significant effect on the genetic structure as predicted by theoretical models and provide support for the hypothesis that historical processes have modified the genetic structure of Kallstroemia grandiflora.
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Article Abstract:
The diversification and systematic relationships among taxa within the complex of Gran Canarian Lotus are examined. An incipient reproductive isolation is concluded from the association of high genetic distances with low linear distances and the substantial increase in the values of Gst on merging of taxa in different combinations.
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