Villani u.a.
Sydowia Vol. 67/E-Book/S 33-43
Molecular characterization of Pleurotus eryngii varieties occurrin
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In: Sydowia 67 (2015): 33–43 DOI 10.12905/0380.sydowia67-2015-0033

Molecular characterization of Pleurotus eryngii varieties occurring in Italy
Alessandra Villani, Emanuela Galli, Costantino Paciolla, Gaetano Stea, Antonio Francesco Logrieco, Carmine Siniscalco, Giuseppina Mulè, Antonia Susca

The Pleurotus eryngii species complex is an economically important group which includes several closely related varieties, whose genetic discrimination is still not clear. One hundred and ten Italian strains of Pleurotus eryngii belonging to the varie­ties elaeoselini, eryngii, ferulae and thapsiae and P. nebrodensis were analysed by sequencing two housekeeping genes (ef1-a and rpb2), in order to find molecular markers for the identification of different varieties. Sequence analysis of partial ef1-a and rpb2 genes, allowed identification of some conserved nucleotide positions within each variety but variable among var. elaeoselini, var. eryngii, var. ferulae, var. thapsiae and P. nebrodensis, allowing their discrimination. Phylogenetic analysis from the data of the two genes data set showed that var. elaeoselini, var. thapsiae, var. ferulae and var. eryngii are closely related to each other, and confirm P. nebrodensis as a separate clade.

Keywords: ef1-a, Pleurotus eryngii species complex, SNPs, rpb2, molecular phylogeny.

Villani A., Galli E., Paciolla C., Stea G., Logrieco A. F., Siniscalco C., Mulè G., & Susca A. (2015) Molecular characterization of Pleurotus eryngii varieties occurring in Italy. – Sydowia 67: 33–43.
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