Molecular-based pedigree reconstruction of peach cultivars

Pedigree relationships used for research or in commercial breeding programs are often unknown or uncertain.
Nevertheless, a detailed and contrasted pedigree information is crucial to understand the genetics of simply and quantitatively inherited traits and to plan appropriate crosses for breeding new cultivars.
Even though peach [Prunus persica (L.) Batsch] has been used in the last decades as a model species for Rosaceae crops, an automated and extensive pedigree reconstruction encompassing the cultivars with most historical and commercial relevance has not been created to this date.
Here we present the pedigree reconstruction of peach lines and cultivars using complete genotypic data and partial historic information based on a metaheuristic approach.
We also present the ongoing prospect of a user-friendly web application to easily access and visualize these pedigree networks.
The web would be of great use for breeders and scientist to identify the genotypes that have contributed most to the genetic variation of the cultivated accessions, and to trace back donors of relevant traits, among other uses.

X International Peach Symposium

F. Jurado-Ruiz, N. Pradas, P. Arús, M.J. Aranzana

Prunus persica, pedigree data, bioinformatic framework, graph network, plant breeding

https://doi.org/10.17660/ActaHortic.2022.1352.18