Estimating heritability in honeybees: Comparison of three major methods based on empirical and simulated datasets

Jourdan-Pineau Hélène, Antoine Gaëlle, Galataud Julien, Delatte Hélène, Simiand Christophe, Clémencet Johanna. 2021. Estimating heritability in honeybees: Comparison of three major methods based on empirical and simulated datasets. Ecology and Evolution, 11 (13) : 8475-8486.

Url - jeu de données - Entrepôt autre : https://doi.org/10.5061/dryad.tx95x69vd

Quartile : Q2, Sujet : ECOLOGY / Quartile : Q3, Sujet : EVOLUTIONARY BIOLOGY

Résumé : The genetic contribution to phenotypic variation (namely the heritability) affects the response to selection. In honeybee, the haplodiploid sex determination does not allow the straightforward use of classical quantitative genetics methods to estimate heritability and genetic correlation. Nevertheless, specific methods have been developed for about 40 years. In particular, sibling analyses are frequently used with three main methods: an historical model using the average colony relatedness, a half-sib/full-sib model, and the more recent animal model. We compared those three methods using experimental and simulated datasets to see which performs the best. Our experimental dataset is composed of 10 colonies with a total sample of 853 workers. All individuals were genotyped to reconstitute the pedigree, and phenotypic traits were measured: labial palpus and wing cubital veins lengths. We also simulated phenotypic datasets with varying levels of heritability, common environment effect, and genetic correlation between traits. The simulation approach showed that the average colony relatedness was highly biased in presence of common environment effect whereas the half-sib/full-sib and the animal model gave reliable estimates of heritability. The animal model provided the greatest precision in genetic correlations. Using this latter method, we found that wing vein lengths had high heritabilities whereas the palpus length had lower heritability due to larger environmental variance and/or measurement error. Finally, significant genetic correlations among measured traits indicate that they do not evolve independently.

Mots-clés Agrovoc : héritabilité, corrélation génétique, Apis mellifera, variation phénotypique, génétique quantitative

Mots-clés libres : Apis mellifera, Heritability, Quantitative genetics, Genetic correlation, Morphology, Simulations

Classification Agris : L10 - Génétique et amélioration des animaux

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

Auteurs et affiliations

• Jourdan-Pineau Hélène, CIRAD-BIOS-UMR ASTRE (FRA) ORCID: 0000-0002-5118-9873 - auteur correspondant
• Antoine Gaëlle, Université de la Réunion (REU)
• Galataud Julien, Université de la Réunion (REU)
• Delatte Hélène, CIRAD-BIOS-UMR PVBMT (MDG)
• Simiand Christophe, CIRAD-BIOS-UMR PVBMT (REU)
• Clémencet Johanna, Université de la Réunion (REU)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/599190/)

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