Data di Pubblicazione:
2003
Citazione:
The use of AFLP markers for cultivar identification in apricot / F. Geuna, M. Toschi, D. Bassi. - In: PLANT BREEDING. - ISSN 0179-9541. - 122:6(2003), pp. 526-531.
Abstract:
Amplified fragment length polymorphism (AFLP) molecular markers
were employed for the fingerprinting of 118 accessions of apricot,
including cultivated varieties and related apricot species. Five primer
combinations were tested and 165 polymorphic bands produced which
could uniquely differentiate all accessions under investigation. Primer
combinations were rated according to the multiplex ratio, the
polymorphic index content and the discrimination power parameters
and superior combinations were identified. AFLP markers were used
in cluster analysis carried out with the UPGMA and the neighbourjoining
methods and parsimony analysis. Four groups of similar
accessions were identified: (i) those from the Mediterranean basin,
(ii) from China, (iii) from continental Europe and (iv) mixed Europe–
North America accessions. In the principal component analysis the
first three components accounted for 17% of the total variability
existing among accessions. Because the most important regions where
apricot is cultivated in the world were represented in the analysis, with
a large number of varieties, it was possible to discuss the data in the
light of current phylogenetic hypotheses on the origin and evolution of
the species.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Prunus armeniaca; AFLP markers; apricot; fingerprinting; phylogeny; principal component analysis
Elenco autori:
F. Geuna, M. Toschi, D. Bassi
Link alla scheda completa: