Genetic diversity in Cytisus aeolicus Guss. (Leguminosae), a rare endemite of the Italian flora

Angelo Troia, Angelo Troia, Giovanni Cristofolini, Lucia Conte

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20 Citazioni (Scopus)


Cytisus aeolicus Guss. is an endemic plant restricted to the isles of Vulcano, Stromboli and Alicudi in the Aeolian archipelago. All known populations were assayed for genetic variability using enzyme polymorphism. Allozyme variation at 16 loci coding for 10 enzyme systems was examined. Thegreat majority of loci turned out to be monomorphic or fixed heterozygous. The observed genetic depauperation is indicative of historical factors, such as the bottleneck effect associated with migration, and the founder effect in population re-establishment. The low genetic diversity is largely partitionedwithin rather than among populations, indicating that extant populations have not been established long enough for divergence to have occurred. The genetic uniformity, combined with the scattered distribution of small populations, and the negative shift of population size point to a critically endangered species. Strategies for conservation are considered.
Lingua originaleEnglish
pagine (da-a)239-249
Numero di pagine11
Stato di pubblicazionePublished - 1998

All Science Journal Classification (ASJC) codes

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