6533b832fe1ef96bd129a48f

RESEARCH PRODUCT

Genetic diversity of fig (Ficus caricaL.) genotypes grown in Southern Italy revealed by the use of SSR markers

G. FerraraS. FrettoAnnalisa MarcheseR. MafricaC. MennoneF. CostaFrancesco MarraC. Di VaioS. RealeF. VitaleTiziano CarusoA. Quartararo

subject

0106 biological sciencesGenetic diversityFicus04 agricultural and veterinary sciencesHorticultureBiologybiology.organism_classification01 natural sciencesSettore AGR/03 - Arboricoltura Generale E Coltivazioni ArboreeHorticultureSettore AGR/07 - Genetica AgrariaBotanyGenotype040103 agronomy & agriculture0401 agriculture forestry and fisheriesgermplasm genetic resources genetic relationships microsatellites.Carica010606 plant biology & botany

description

The genetic variability among 181 fig (Ficus carica L.) accessions found in small farms located in Campania, Basilicata, Apulia, Calabria and Sicily was investigated analysing the polymorphism of 18 simple sequence repeat (SSR) markers. The SSR analysis revealed a large genetic diversity among accessions. A total of 117 alleles were detected with a mean of 6.5 locus-1. The average expected (He) and observed heterozygosity (Ho) were 0.56 and 0.66, respectively. The mean polymorphic information content (PIC) was 0.51, suggesting a significant molecular diversity among the fig accessions taken into consideration. The UPGMA cluster analysis discriminated 174 genotypes and allowed to find 8 groups of identity. The genotype ‘Bianca di agosto’ was an “outgroup”. This study showed groups of fig accessions matching with their geographic or cultivation area, but also many genotypes, especially from Campania, with uneven distribution. The research evidenced the richness of the available fig genetic resources in Southern Italy, resolved cases of synonymies and homonymies and helped to characterize fig accessions, an important preliminary work for establishing core collections.

https://doi.org/10.17660/actahortic.2017.1173.13