Genes | |
Genetic Resources of Olea europaea L. in the Garda Trentino Olive Groves Revealed by Ancient Trees Genotyping and Parentage Analysis of Drupe Embryos | |
MariaStella Grando1  Luca Lombardo1  Paula Moreno-Sanz1  Silvia Lorenzi2  Franco Michelotti3  | |
[1] Center Agriculture Food and Environment (C3A), University of Trento, Via E. Mach 1, 38010 San Michele all’Adige (TN), Italy;Fondazione Edmund Mach, Research and Innovation Centre, Via E. Mach 1, 38010 San Michele all’Adige (TN), Italy;Fondazione Edmund Mach, Technology Transfer Centre, Via E. Mach 1, 38010 San Michele all’Adige (TN), Italy; | |
关键词: ‘Casaliva’; ‘Frantoio’; Olea europaea; parentage analysis; Garda Trentino; genetic diversity; | |
DOI : 10.3390/genes11101171 | |
来源: DOAJ |
【 摘 要 】
The area of the Garda Lake within the Trentino province (north of Italy) is the northernmost part of Europe where the Mediterranean species Olea europaea L. is traditionally cultivated. ‘Casaliva’ is claimed as the main variety traditionally grown in the Garda Trentino area (GT) from which a world renowned niche extra virgin olive oil is produced. Since a dominant presence of ‘Casaliva’ would link the fruit set success and yield to a self-pollination compatibility system, a deep genetic survey of the olive tree population in the GT has been performed with the aim of establishing the actual varietal composition and of understanding from which pollen donor the ‘Casaliva’ olives originate. Forty-four different genetic profiles were observed among the 205 leaf samples collected from 106 ancient trees through the analysis of 20 nuclear microsatellite markers. The varietal composition in modern orchards was also explored and the vast majority of the additional 151 trees analyzed showed the same genotype as the ancient accessions of ‘Casaliva’. The results support the long historical link of ‘Casaliva’ with the GT and, besides a high varietal homogeneity, they also revealed the presence of olive genetic resources essential to fruit production. In fact, the parentage analysis of 550 embryos from drupes of ‘Casaliva’ evidenced that a cross-fertilization system is favored and a list of candidate cultivars most suitable as local pollinizers of ‘Casaliva’ was identified.
【 授权许可】
Unknown