Usefulness of Multiparental Populations of Maize (Zea mays L.) for Genome-Based Prediction
| Autor: | Jesús Moreno-González, Eva Bauer, Nicole C. Krämer, Alain Charcosset, Nicolas Ranc, Christina Lehermeier, Albrecht E. Melchinger, Milena Ouzunova, Manfred Schönleben, Laurence Moreau, Cyril Bauland, Hildrun Walter, Laura Campo, Monica A. Menz, Chris-Carolin Schön, Pascal Flament, Christian Camisan, Wolfgang Schipprack, Hubert Pausch, Nina Meyer |
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| Přispěvatelé: | Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), Génétique Quantitative et Evolution - Le Moulon (Génétique Végétale) (GQE-Le Moulon), Centre National de la Recherche Scientifique (CNRS)-AgroParisTech-Université Paris-Sud - Paris 11 (UP11)-Institut National de la Recherche Agronomique (INRA), Groupe Limagrain, Centro de Investigaciones Agrarias de Mabegondo (CIAM), Institute of Plant Breeding, Seed Science and Population Genetics, Universität Hohenheim, Syngenta France, KWS SAAT SE & Co.KGaA |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
0106 biological sciences
Germplasm LINKAGE DISEQUILIBRIUM GENETIC VARIANCE [SDV]Life Sciences [q-bio] LINE CROSSES Single-nucleotide polymorphism BAYESIAN ALPHABET Best linear unbiased prediction Biology 01 natural sciences Genome Polymorphism Single Nucleotide Zea mays ASSOCIATION MAPPING POPULATION UNRELATED INDIVIDUALS 03 medical and health sciences Multiparental Populations Genetics BREEDING VALUES [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Plant breeding 030304 developmental biology 2. Zero hunger Linkage (software) 0303 health sciences QUANTITATIVE TRAIT LOCI Models Genetic Sample size determination Genetic structure Hybridization Genetic MULTIPLE FAMILIES Genome Plant HYBRID PERFORMANCE 010606 plant biology & botany |
| Zdroj: | Genetics Genetics, Genetics Society of America, 2014, 198 (1), pp.3-16 +. ⟨10.1534/genetics.114.161943⟩ |
| ISSN: | 0016-6731 |
| Popis: | The efficiency of marker-assisted prediction of phenotypes has been studied intensively for different types of plant breeding populations. However, one remaining question is how to incorporate and counterbalance information from biparental and multiparental populations into model training for genome-wide prediction. To address this question, we evaluated testcross performance of 1652 doubled-haploid maize (Zea mays L.) lines that were genotyped with 56,110 single nucleotide polymorphism markers and phenotyped for five agronomic traits in four to six European environments. The lines are arranged in two diverse half-sib panels representing two major European heterotic germplasm pools. The data set contains 10 related biparental dent families and 11 related biparental flint families generated from crosses of maize lines important for European maize breeding. With this new data set we analyzed genome-based best linear unbiased prediction in different validation schemes and compositions of estimation and test sets. Further, we theoretically and empirically investigated marker linkage phases across multiparental populations. In general, predictive abilities similar to or higher than those within biparental families could be achieved by combining several half-sib families in the estimation set. For the majority of families, 375 half-sib lines in the estimation set were sufficient to reach the same predictive performance of biomass yield as an estimation set of 50 full-sib lines. In contrast, prediction across heterotic pools was not possible for most cases. Our findings are important for experimental design in genome-based prediction as they provide guidelines for the genetic structure and required sample size of data sets used for model training. |
| Databáze: | OpenAIRE |
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