Legacy genetics of Arachis cardenasii in the peanut crop shows the profound benefits of international seed exchange.

ABSTRACT: The narrow genetics of most crops is a fundamental vulnerability to food security. This makes wild crop relatives a strategic resource of genetic diversity that can be used for crop improvement and adaptation to new agricultural challenges. Here, we uncover the contribution of one wild species accession, Arachis cardenasii GKP 10017, to the peanut crop (Arachis hypogaea) that was initiated by complex hybridizations in the 1960s and propagated by international seed exchange. However, until this study, the global scale of the dispersal of genetic contributions from this wild accession had been obscured by the multiple germplasm transfers, breeding cycles, and unrecorded genetic mixing between lineages that had occurred over the years. By genetic analysis and pedigree research, we identified

SUBMITTER: Bertioli DJ 

PROVIDER: S-EPMC8463892 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature