Search results for " Endemics"

showing 2 items of 12 documents

Sorbus busambarensis (Rosaceae), a new endemic species of Sicily

2012

Abstract In this study, Sorbus busambarensis, a new species from Rocca Busambra (Palermo, NW Sicily) has been described and named. On the basis of the critical features of its flowers, fruits and leaves, it is noted to be a member of S. sect. Aria and is related to the other taxa that form the polymorphic group of S. aria, which in Sicily is represented by S. aria s. str., S. graeca and S. umbellata.

SpiraeoideaeSorbusTaxonbiologySpiraeoideae Sorbus aria group Italian flora Sicilian endemics taxonomy.Settore BIO/02 - Botanica SistematicaRosaceaeBotanyTaxonomy (biology)Plant Sciencebiology.organism_classificationEndemismEcology Evolution Behavior and SystematicsPlant Biosystems - An International Journal Dealing with all Aspects of Plant Biology
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Genetic diversity in theCentaurea cinerariagroup (Compositae) in Sicily using isozymes

2006

Abstract The genetic diversity of seven taxa endemic to Sicily, C. cineraria, C. busambarensis, C. ucriae subsp. ucriae, C. ucriae subsp. umbrosa, C. todari, C. erycina and C. saccensis, from 11 localities was investigated using isozymes. Eight loci from five enzyme systems (IDH, MDH, PGD, PGM and PGI) were examined. A total of 19 alleles were identified, some rare and two of them exclusive to different populations. The allelic frequencies and the genetic variability values for each population were calculated. On the whole, the genetic diversity, i.e., average polymorphism (P) = 0.41, average number of alleles per locus (A) = 1.75, Nei's gene diversity (H) = 0.18, is moderate, with the high…

education.field_of_studyGenetic diversitybiologyPopulationDendrogramLocus (genetics)Plant Sciencebiology.organism_classificationCinerariaBotanyCentaurea genetic diversity endemics isozyme analysisGenetic variabilityAlleleeducationCentaurea cinerariaEcology Evolution Behavior and SystematicsPlant Biosystems - An International Journal Dealing with all Aspects of Plant Biology
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