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|The Potentilla collina complex is intermediate between P. argentea
and P. tabernaemontani and is thought to have arisen through hybridization
between these or closely related species. As most taxa within the parental
species and their close relatives are apomictic, as well as the Collinae,
cytogenetic investigations have not so far given any clear evidence
on the origin of P. collina.In the present study, the material comprised
38 apomictic biotypes belonging to the species P. argentea, collina,
tabernaemontani and crantzii. The distribution of phenolic compounds
in leaves was studied by means of two-dimensional thin-layer chromatography.
Among the approximately 100 spots observed in the chromatograms, the
blue fluorescent spots had a somewhat chance distribution, while the
non-blue spots seemed to be of greater taxonomic significance.Comparisons
between chromatograms indicated a close relationship between P. collina
and tabernaemontani, and also clear affinities between the collina biotypes
and the heterogeneous argentea material. P. crantzii displayed similarities
only to P. tabernaemontani and did not seem to be involved in the origin
of P. collina. https://www.researchgate.net/publication/229941404_The_Potentilla_collina_problem-_a_chemotaxonomic_approach
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