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Fitosociologia numero 48 (2) S1

pag. 21-29: Genetic diversity and phylogeographical assessment of Helianthemum caput-felis Boiss. (Cistaceae) based on AFLP markers

J. C. Agulló, *A. Juan, A. Guilló, Mª Á. Alonso & M. B. Crespo

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abstract

Analyses of AFLP markers were carried out for three populations of Helianthemum caput-felis. The selected populations corresponded to well-fragmented areas from Spanish territories: Iberian Peninsula (Alicante), Balearic Islands (Majorca) and North Africa (Melilla). Analyses of molecular data (PCO, Fst values and Fst dendrograms) revealed a separation between the North African population and the Iberian-Balearic populations. The importance of the geological events within the Mediterranean basin, especially changes of the water level after the Messinian salinity crisis, is discussed. Multivariate analyses yielded close relationships between populations from the Balearic Islands and the Iberian Peninsula, though some uncertain data were detected. Balearic subpopulations with different ecological habitats appeared to be genetically similar. Finally, the obtained genetic data are also relevant for conservation purposes.

keywords

AFLP, Cistaceae, Gene flow, Mediterranean Sea, Population isolation, Spain