Search results for "Botanica"
showing 10 items of 1665 documents
Variabilità genetica in tre specie del genere Cyanus (Centaureinae, Asteraceae) della Bulgaria
2009
Una banca del DNA della flora della regione mediterranea
2012
Come è noto, la ricerca biologica nei vari campi fa sempre più riferimento alla struttura genetica degli urganismi, L'estrazione e il sequenziamento del DNA sono pratiche ormai di routine e. in tante secli "cientifiche, al riguardo, esistono laboratori ben attrezzati. In particolare. la moderna ricerca sistematica fa ampio riferimento alla caratterizzazione genetica degli organismi, Purtroppo, il DNA totale estratto. una volta utilizzato nelle indagini molecolari. spesso viene scartato per mancanza di un centro di deposito abilitato alla sua conservazione: questo rende impossibile-soprattutto quando nessun reperto de\l'organismo di riferimento è disponibile -sia la verifica della correttezz…
Genetic diversity in five populations of Galanthus from Sicily using isozymes
2009
Approccio micromorfologico alla sistematica del genere Isoëtes (Isoëtaceae, Lycopodiophyta): analisi della superficie delle megaspore
2011
OPTIMA Newsletter 42(1-2)
2015
OPTIMA Newsletter nº 42 continues the standard followed in the previous issues. The Newsletter is divided into two parts, the first with the News and the second with the Notices of Publications. The first section regarding news has became gradually thinner due to the fast and cheap channel represented by e-mail. The news here reported are only those that it makes sense to also produce as hard copy. Short news from OPTIMA Commissions are included, limited to those that reported activity in 2013, 2014 and beginning of 2015.
Reports (1813-1814) In: Kamari G., Blanché C., Siljak-Yakovlev S. (EDS) Mediterranean Chromosome Number Reports - 23
2013
Plant Conservation Centres in Sicily: The ‘Valle Maria’ Regional Centre (Godrano, Palermo) and the case study of the rare Centaurea erycina (Asterace…
2017
The role of the ‘Valle Maria’ Regional Centre and its activity in plant conservation thank to the collaboration with the University of Palermo, Dept. STEBICEF is discussed. The case study on propagation of Centaurea erycina, a narrow Sicilian endemic is presented.
Contributo alla caratterizzazione morfologica del polline di Prunus avium L.
2012
Genetic diversity on Pyrus L. (Rosaceae) in Sicily
2009
The genetic diversity on six Pyrus species (P. amygdaliformis, P. pyraster, P. communis, P. vallis- demonis, P. sicanorum, P. castribonensis) from Sicily was investigated using isozymes. Atotal of 26 alleles was found in 8 loci of 5 enzyme systems (IDH,MDH, 6-PGD, PGI and SKD). The allelic frequencies and the genetic variability values for each population were calculated. The greatest rate of polymorphism was found in P. sicanorum, P. castribonensis and P. amygdaliformis from Sicani Mts. The relationships among the populations were computed by Nei’s genetic identity/distance and the obtained dendrogram shows a remarkable genetic distance of P. vallis-demonis from of all other investigated t…