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Efficient Breeding by Genomic Mating.

Deniz Akdemir1, Julio I Sánchez2

  • 1Plant Breeding and Genetics, Cornell University Ithaca, NY, USA.

Frontiers in Genetics
|December 15, 2016
PubMed
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Genomic mating optimizes breeding by focusing on parent complementation, not just top performance. This new approach for complex traits shows improved efficiency over traditional phenotypic and genomic selection methods.

Area of Science:

  • Animal and Plant Breeding
  • Quantitative Genetics
  • Bioinformatics

Background:

  • Traditional breeding relies on phenotypic selection, breeding value selection, or marker-assisted/genomic selection, all based on truncation selection.
  • Truncation selection focuses on the best-performing parents before mating, which may not be optimal for complex traits.

Purpose of the Study:

  • To introduce and evaluate a novel breeding approach named genomic mating.
  • To compare the efficiency of genomic mating against established methods like phenotypic selection and genomic selection for complex traits.

Main Methods:

  • Genomic mating utilizes genomic information, similar to genomic selection, but emphasizes the complementation of parents during mating.
  • It incorporates estimated breeding values, risk (usefulness), and coefficient of ancestry to optimize parent selection for mating.
Keywords:
breedingcomplex traitsgenome-wide markersgenomic selectionphenotypic selection

Related Experiment Videos

  • A genetic algorithm was employed to solve the complex optimization problem inherent in genomic mating.

    • Main Results:

    • Simulations indicate that genomic mating is more favorable for breeding complex traits compared to current phenotypic and genomic selection methods.
    • Genomic mating shares marker effect estimation with genomic selection but uniquely uses this information to guide genotype crosses.
    • The approach focuses on optimizing the genetic makeup of the next breeding population through informed mating decisions.

    Conclusions:

    • Genomic mating represents a significant advancement in breeding strategies, particularly for complex genetic traits.
    • By prioritizing mating optimization and parent complementation, this method offers enhanced efficiency over existing selection paradigms.
    • Future breeding programs can leverage genomic mating to improve population development and trait advancement.