Article
Nonlinear genomic selection index accelerates multi-trait crop improvement.
Nature communications - 20 Feb 2026
Jesús Cerón-Rojas J, Montesinos-López Osval A, Montesinos-López Abelardo, Vitale Paolo, Pérez-Rodríguez Paulino, Fernandes Samuel B, Ortiz Rodomiro, Crossa José
Abstract excerpt
Linear phenotypic and genomic selection indices assume additivity and linearity, limiting their ability to exploit nonlinear trait relationships. Here, we introduce the Quadratic Genomic Selection Index (QGSI), a genomic extension of the quadratic phenotypic selection index (QPSI) that integrates genomic estimated breeding values (GEBVs) within a unified quadratic framework. QGSI combines additive, squared, and...
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