Abstract
L. pimpinellifolium is a highly heterogeneous species, exhibiting pronounced trends from one end of its linear distribution to the other in nearly every studied genetic locus. Drastic differences between populations were also detected in genetic variability and rates of outcrossing. Highly significant positive correlations exist in every possible comparison between flower size, degree of stigma exsertion, heterozygosity, and allelic polymorphism. The hypothesis most compatible with observations proposes that the very uniform, highly self-pollinated biotypes originated from the more primitive, more variable, facultatively allogamous forms.
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Dedicated with affection, gratitude and respect to the memory ofTheodosius Dobzhansky.
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Rick, C.M., Fobes, J.F. & Holle, M. Genetic variation inLycopersicon pimpinellifolium: Evidence of evolutionary change in mating systems. Pl Syst Evol 127, 139–170 (1977). https://doi.org/10.1007/BF00984147
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DOI: https://doi.org/10.1007/BF00984147