Reciprocal Recurrent Genomic Selection Is Impacted by Genotype-by-Environment Interactions.

Autor: Rembe M; Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany., Reif JC; Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany., Ebmeyer E; KWS LOCHOW GmbH, Bergen, Germany., Thorwarth P; KWS SAAT SE & Co. KGaA, Einbeck, Germany., Korzun V; KWS SAAT SE & Co. KGaA, Einbeck, Germany.; Federal State Budgetary Institution of Science Federal Research Center 'Kazan Scientific Center of Russian Academy of Sciences', Kazan, Russia., Schacht J; Limagrain Europe, Ferme de l'Etang - BP3-77390, Verneuil-l'Ètang, France., Boeven PHG; Limagrain Europe, Ferme de l'Etang - BP3-77390, Verneuil-l'Ètang, France., Varenne P; Limagrain Europe, Ferme de l'Etang - BP3-77390, Verneuil-l'Ètang, France., Kazman E; Syngenta Seeds GmbH, Hadmersleben, Germany., Philipp N; Syngenta Seeds GmbH, Hadmersleben, Germany., Kollers S; KWS SAAT SE & Co. KGaA, Einbeck, Germany., Pfeiffer N; KWS LOCHOW GmbH, Bergen, Germany., Longin CFH; State Plant Breeding Institute, University of Hohenheim, Stuttgart, Germany., Hartwig N; Nordsaat Saatzucht GmbH, Langenstein, Germany., Gils M; Nordsaat Saatzucht GmbH, Langenstein, Germany., Zhao Y; Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany.
Jazyk: angličtina
Zdroj: Frontiers in plant science [Front Plant Sci] 2021 Sep 24; Vol. 12, pp. 703419. Date of Electronic Publication: 2021 Sep 24 (Print Publication: 2021).
DOI: 10.3389/fpls.2021.703419
Abstrakt: Reciprocal recurrent genomic selection is a breeding strategy aimed at improving the hybrid performance of two base populations. It promises to significantly advance hybrid breeding in wheat. Against this backdrop, the main objective of this study was to empirically investigate the potential and limitations of reciprocal recurrent genomic selection. Genome-wide predictive equations were developed using genomic and phenotypic data from a comprehensive population of 1,604 single crosses between 120 female and 15 male wheat lines. Twenty superior female lines were selected for initiation of the reciprocal recurrent genomic selection program. Focusing on the female pool, one cycle was performed with genomic selection steps at the F 2 (60 out of 629 plants) and the F 5 stage (49 out of 382 plants). Selection gain for grain yield was evaluated at six locations. Analyses of the phenotypic data showed pronounced genotype-by-environment interactions with two environments that formed an outgroup compared to the environments used for the genome-wide prediction equations. Removing these two environments for further analysis resulted in a selection gain of 1.0 dt ha -1 compared to the hybrids of the original 20 parental lines. This underscores the potential of reciprocal recurrent genomic selection to promote hybrid wheat breeding, but also highlights the need to develop robust genome-wide predictive equations.
Competing Interests: EE and NPf were employed by KWS LOCHOW GmbH. PT, VK, and SK were employed by KWS Saat SE & Co. KGaA. JS, PB, and PV were employed by Limagrain GmbH. EK and NPh was employed by Syngenta Seeds GmbH. NH was employed by Nordsaat Saatzucht GmbH. MG was employed by Nordsaat Saatzucht GmbH and is presently employed by Strube Research GmbH & Co. KG. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2021 Rembe, Reif, Ebmeyer, Thorwarth, Korzun, Schacht, Boeven, Varenne, Kazman, Philipp, Kollers, Pfeiffer, Longin, Hartwig, Gils and Zhao.)
Databáze: MEDLINE
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