GiPS: Genomics-informed parent selection uncovers the breeding value of wheat genetic resources

Schulthess, A. W.; Kale, S. M.; Liu, F.; Zhao, Y.; Philipp, N.; Rembe, M.; Jiang, Y.; Beukert, U.; Serfling, A.; Himmelbach, A.; Fuchs, J.; Oppermann, M.; Weise, S.; Boeven, P. H. G.; Schacht, J.; Longin, C. F. H.; Kollers, S.; Pfeiffer, N.; Korzun, V.; Lange, M.; Scholz, U.; Stein, N.; Mascher, M.; Reif, J. C.

doi:10.1101/2021.12.15.472759

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bioRxiv · 10.1101/2021.12.15.472759

GiPS: Genomics-informed parent selection uncovers the breeding value of wheat genetic resources

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Abstract

The great efforts spent in the maintenance of past diversity in genebanks are rationalized by the potential role of plant genetic resources in future crop improvement - a concept whose practical implementation has fallen short of expectations. Here, we implement genomics-informed parent selection to expedite pre-breeding without discriminating against non-adapted germplasm. We collect dense genetic profiles for a large winter wheat collection and evaluate grain yield and resistance to yellow rust in representative coresets. Genomic prediction within and across genebanks identified the best parents for PGR x elite derived crosses that outyielded current elite cultivars in multiple field trials.

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Schulthess, A. W., Kale, S. M., Liu, F., Zhao, Y., Philipp, N., Rembe, M., Jiang, Y., Beukert, U., Serfling, A., Himmelbach, A., Fuchs, J., Oppermann, M., Weise, S., Boeven, P. H. G., Schacht, J., Longin, C. F. H., Kollers, S., Pfeiffer, N., Korzun, V., Lange, M., Scholz, U., Stein, N., Mascher, M., Reif, J. C.. 2021-12-16. GiPS: Genomics-informed parent selection uncovers the breeding value of wheat genetic resources. https://doi.org/10.1101/2021.12.15.472759

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