ArticleBMC genomics2015
Mixed model approach for IBD-based QTL mapping in a complex oil palm pedigree.
Article in BMC genomics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Early Response QTLs and DEGs Underlying Oil Palm Resistance toMicroorganisms · 2026Article
- Genome properties of key oil palm (Elaeis guineensis Jacq.) breeding populations.Journal of applied genetics · 2022Article
- In silico QTL mapping in an oil palm breeding program reveals a quantitative and complex genetic resistance toMolecular breeding : new strategies in plant improvement · 2021Article
- Molecular approaches for improving oil palm for oil.Molecular breeding : new strategies in plant improvement · 2021Review
- Identification and Validation of Candidate Genes Involved in Fatty Acid Content in Oil Palm by Genome-Wide Association Analysis.Frontiers in plant science · 2019Article
- Linkage Analysis and Association Mapping QTL Detection Models for Hybrids Between Multiparental Populations from Two Heterotic Groups: Application to Biomass Production in Maize (G3 (Bethesda, Md.) · 2017Article
- Identification ofG3 (Bethesda, Md.) · 2017Article
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Authors and funding
10 authors.
Funding
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Abstract
backgroundElaeis guineensis is the world's leading source of vegetable oil, and the demand is still increasing. Oil palm breeding would benefit from marker-assisted selection but genetic studies are scarce and inconclusive. This study aims to identify genetic bases of oil palm production using a pedigree-based approach that is innovative in plant genetics.
resultsA quantitative trait locus (QTL) mapping approach involving two-step variance component analysis was employed using phenotypic data on 30852 palms from crosses between more than 300 genotyped parents of two heterotic groups. Genome scans were performed at parental level by modeling QTL effects as random terms in linear mixed models with identity-by-descent (IBD) kinship matrices. Eighteen QTL regions controlling production traits were identified among a large genetically diversified sample from breeding program. QTL patterns depended on the genetic origin, with only one region shared between heterotic groups. Contrasting effects of QTLs on bunch number and weights reflected the close negative correlation between the two traits.
conclusionsThe pedigree-based approach using data from ongoing breeding programs is a powerful, relevant and economic approach to map QTLs. Genetic determinisms contributing to heterotic effects have been identified and provide valuable information for orienting oil palm breeding strategies.
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