Overall records: 4,285
doi: https://doi.org/10.15468/qwefvq
Record Count: 1,175
Dataset Type: Occurrence
Dataset subtype: Specimen
Description: A total of 192 populations of Quercus cerris from the eastern Mediterranean Basin (Italy, Balkan peninsula, Anatolia) were genotyped with six polymorphic chloroplast microsatellites, and the genetic diversity and differentiation of the populations were evaluated. DNA samples are kept in collection at -20° C and available for research use only.
Keywords: Occurrence, Specimen, Turkey oaks, Forest tree populations, Intraspecific biodiversity, Range-wide genetic variability, Quercus cerris L.
Parent Collection: CNR-IBBR-DNAFOR
Parent Institution: CNR-IBBR-FI
Publisher: Consiglio Nazionale delle Ricerche, Istituto di Bioscienze e Bio Risorse (CNR-IBBR)
License: http://creativecommons.org/licenses/by-nc/4.0/legalcode
doi: https://doi.org/10.15468/3ccqf4
Record Count: 1,167
Dataset Type: Occurrence
Dataset subtype: Specimen
Description: Some 1168 silver fir trees from 24 natural populations sampled across italy and the Balkanian peninsula have been fully genotyped using a set of 16 SSR loci. Needles have been collected from georeferenced, individual trees in the forest, transported to the lab and kept at -80 °C for long-term storage. DNA has been extracted from each tissue sample for purpose of population genetic studies and evolutionary history reconstruction, and it is currently maintained at -20 *C for future research.
Keywords: Occurrence, Abies alba, Gene flow, Silver fir, Conservation, Genetic diversity, Forest trees, Specimen
Parent Collection: CNR-IBBR-DNAFOR
Parent Institution: CNR-IBBR-FI
Publisher: Consiglio Nazionale delle Ricerche, Istituto di Bioscienze e Bio Risorse (CNR-IBBR)
License: http://creativecommons.org/licenses/by/4.0/legalcode
doi: https://doi.org/10.15468/u63jc7
Record Count: 718
Dataset Type: Occurrence
Dataset subtype: Specimen
Description: Genomic DNA has been extracted from 718 Douglas fir trees from 29 planting sites across Italy (from the Eastern Alps to the Southern Apennines to Sicily and Sardina). Most sampled stands are old plantations established in the 1920s-1930s (about 90-100 years old), while several others are 40-50 years old. The project’s main goal is to establish the genetic origin of the propagation material used in afforestation using SSR markers.
Keywords: Occurrence, Alien species, Douglas fir, Forest Plantations, Italy, Pseudotsuga menziesii, Specimen
Parent Collection: CNR-IBBR-DNAFOR
Parent Institution: CNR-IBBR-FI
Publisher: Consiglio Nazionale delle Ricerche, Istituto di Bioscienze e Bio Risorse (CNR-IBBR)
License: http://creativecommons.org/licenses/by-nc/4.0/legalcode
doi: https://doi.org/10.15468/224jzj
Record Count: 712
Dataset Type: Occurrence
Dataset subtype: Specimen
Description: The dataset derives from the first large-scale analysis using nuclear molecular markers to assess the genetic diversity and structure of Cupressus sempervirens L. Genetic and fossil data were combined to infer the possible role of human activity and evolutionary history in shaping the diversity of cypress populations. Thirty populations with six polymorphic nuclear microsatellite markers were analyzed. Dramatic reductions in heterozygosity and allelic richness were observed from east to west across the species range. Structure analysis assigned individuals to two main groups separating the central Mediterranean and eastern populations. The two main groups could be further divided into five subgroups, which showed the following geographical distributions: Turkey with the Greek islands Rhodes and Samos, Greece (Crete), Southern Italy, Northern Italy, and Tunisia with Central Italy. This pattern of genetic structure is also supported by SAMOVA and Barrier analyses. Palaeobotanical data indicated that Cupressus was present in Italy in the Pliocene, Pleistocene, and Holocene. Furthermore, the survey showed that Italian cypress populations experienced bottlenecks resulting in reduced genetic diversity, allelic richness, and higher genetic differentiation. Recent colonization or introduction may also have influenced levels of diversity detected in the Italian populations, as most individuals in this range today have multilocus genotypes also present in the eastern range of the species. The data reveal a new interpretation of the history of cypress distribution characterized by ancient eastern populations (Turkey and Greek islands) and a mosaic of recently introduced trees and remnants of ancient, depauperate populations in the central Mediterranean range.
Keywords: Occurrence, Cypress, Mediterranean, NuSSR, Simple sequence repeats, Italy, Greece, Turkey, Specimen
Parent Collection: CNR-IBBR-DNAFOR
Parent Institution: CNR-IBBR-FI
Publisher: Consiglio Nazionale delle Ricerche, Istituto di Bioscienze e Bio Risorse (CNR-IBBR)
License: http://creativecommons.org/licenses/by-nc/4.0/legalcode
doi: https://doi.org/10.15468/9868ye
Record Count: 513
Dataset Type: Occurrence
Dataset subtype: Specimen
Description: Tissue and DNA samples from more that 500 individuals of Pinus heldreichii var. leucodermis from the italian range of the species (Basilicata and Calabria, Southern Italy). Needles have been collected from georeferenced, individual trees in the forest, transported to the lab and kept at -80 °C for long-term storage. DNA has been extracted from each tissue sample for purpose of population genetic studies and evolutionary history reconstruction, and it is currently maintained at -20 *C for future research.
Keywords: Occurrence, Bosnian pine, Pinus heldreichii var. leucodermis, Pino loricato, Pollino, Heldreich's pine, Specimen
Parent Collection: CNR-IBBR-DNAFOR
Parent Institution: CNR-IBBR-FI
Publisher: Consiglio Nazionale delle Ricerche, Istituto di Bioscienze e Bio Risorse (CNR-IBBR)
License: http://creativecommons.org/licenses/by-nc/4.0/legalcode