Trials were conducted on grapevine varieties identified in tuscan coastal area. Ampelographic traits of several biotypes first recorded were integrated by ampelometric measures and polymorphism of 10 microsatellite loci determinations. This work revealed that 3 ‘Durella’ biotypes found in Lunigiana are a different grapevine variety from homologated ‘Durella’ clones. A wide variability on morphological traits among ‘Pollera’ biotypes was detected and a group of accessions, including ‘Corlaga’ and ‘Caloria’ showed the same allelic configuration and similar phenotype traits to the official ‘Pollera’ description. Significant morphological variations was showed among putative clones of ‘Aleatico’ and homologated French clones but any difference was found at molecular level. For one of the three ‘Aleatico-like’ accessions we can hypothesise the origin of a natural cross from ‘Aleatico’ and a specific accession of ‘Black Muscat’. In several white grapevine accessions found in Lunigiana having different morphological traits, molecular study allowed to distinguish into two groups, one identical to ‘Verdicchio’ (including ‘Verdarella’ and ‘Verduschia’ biotypes), and the other ones identical to ‘Verdello’ (for ‘Verdella’ and Trebbianino nostrale’ biotypes). Microsatellite polymorphism analysis permitted to find out that accessions named as ‘Morellino Pizzuto’ and ‘Merla’ corresponded to the known variety ‘Gaglioppo’ and ‘Canaiolo Nero’.
Identificazione e caratterizzazione di vitigni minori toscani mediante tecniche ampelografiche e molecolari
SCALABRELLI, GIANCARLO;D'ONOFRIO, CLAUDIO;
2007-01-01
Abstract
Trials were conducted on grapevine varieties identified in tuscan coastal area. Ampelographic traits of several biotypes first recorded were integrated by ampelometric measures and polymorphism of 10 microsatellite loci determinations. This work revealed that 3 ‘Durella’ biotypes found in Lunigiana are a different grapevine variety from homologated ‘Durella’ clones. A wide variability on morphological traits among ‘Pollera’ biotypes was detected and a group of accessions, including ‘Corlaga’ and ‘Caloria’ showed the same allelic configuration and similar phenotype traits to the official ‘Pollera’ description. Significant morphological variations was showed among putative clones of ‘Aleatico’ and homologated French clones but any difference was found at molecular level. For one of the three ‘Aleatico-like’ accessions we can hypothesise the origin of a natural cross from ‘Aleatico’ and a specific accession of ‘Black Muscat’. In several white grapevine accessions found in Lunigiana having different morphological traits, molecular study allowed to distinguish into two groups, one identical to ‘Verdicchio’ (including ‘Verdarella’ and ‘Verduschia’ biotypes), and the other ones identical to ‘Verdello’ (for ‘Verdella’ and Trebbianino nostrale’ biotypes). Microsatellite polymorphism analysis permitted to find out that accessions named as ‘Morellino Pizzuto’ and ‘Merla’ corresponded to the known variety ‘Gaglioppo’ and ‘Canaiolo Nero’.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
