Genetic variation inOrchis papilionacea (Orchidaceae) from the Central Mediterranean region: Taxonomic inferences at the intraspecific level

Abstract The genetic differentiation ofOrchis papilionacea from Italy, Corsica, Sardinia, Sicily, and Greece was analyzed by isozyme studies. No significant differences at any of the 28 loci tested were observed between samples of the putative subspeciespapilionacea from Italy,grandiflora from Sicil...y andheroica from Greece, or by comparing sympatricpapilionacea-like andgrandiflora-like subsamples from Sardinia and Corsica. The genetic relationships found among the populations studied reflect more their geographic origin than their taxonomic assignment;papilionacea, grandiflora, andheroica are, therefore, at least in the study area, not to be considered as subspecies, but as simple morphs, controlled by few genes (possibly two) with Mendelian inheritance. The genetic divergence observed among the samples studied is very low and consistent with that of geographic populations of a single cohesive gene pool, linked by a high gene flow (Nm = 5.9). Ausführliche Beschreibung Beschreibung ausblenden

1. Person:	Arduino, Paola
Weitere Personen:	Cianchi, Rossella; Rossi, Walter; Corrias, Bruno; Bullini, Luciano
Quelle:	in Plant systematics and evolution Vol. 194 (1995), p. 9-23 Weitere Artikel
Format:	Online-Artikel
Genre:	Orchidaceae, Orchis, O. papilionacea, subsp.papilionacea, subsp.grandiflora, subsp.heroica, Multilocus electrophoresis, genetic structure, gene flow, genetic distance, biochemical taxonomy
Sprache:	English
Veröffentlicht:	1995
Beschreibung:	Online-Ressource
Online Zugang:	Online
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Anmerkung:	Copyright: Copyright 1995 Springer-Verlag