ArticleGenetics, selection, evolution : GSE2013
Using pooled data to estimate variance components and breeding values for traits affected by social interactions.
Article in Genetics, selection, evolution : GSE, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed.
- Indirect genetic effects increase the heritable variation available to selection and are largest for behaviors: a meta-analysis.Evolution letters · 2025Article
- Using egg production longitudinal recording to study the genetic background of resilience in purebred and crossbred laying hens.Genetics, selection, evolution : GSE · 2022Article
- Genetic parameters and genomic prediction for feed intake recorded at the group and individual level in different production systems for growing pigs.Genetics, selection, evolution : GSE · 2021Article
- Prediction of breeding values for group-recorded traits including genomic information and an individually recorded correlated trait.Heredity · 2021Article
- Ant cuticular hydrocarbons are heritable and associated with variation in colony productivity.Proceedings. Biological sciences · 2020Article
- Optimized grouping to increase accuracy of prediction of breeding values based on group records in genomic selection breeding programs.Genetics, selection, evolution : GSE · 2019Article
- Use of Repeated Group Measurements with Drop Out Animals for Variance Component Estimation and Genetic Evaluation: A Simulation Study.G3 (Bethesda, Md.) · 2019Article
- Models with indirect genetic effects depending on group sizes: a simulation study assessing the precision of the estimates of the dilution parameter.Genetics, selection, evolution : GSE · 2019Article
- Estimation of variance components and prediction of breeding values based on group records from varying group sizes.Genetics, selection, evolution : GSE · 2018Article
- Phenotyping for Genetic Improvement of Feed Efficiency in Fish: Lessons From Pig Breeding.Frontiers in genetics · 2018Article
- Genomic prediction of survival time in a population of brown laying hens showing cannibalistic behavior.Genetics, selection, evolution : GSE · 2016Article
- Plumage condition in laying hens: genetic parameters for direct and indirect effects in two purebred layer lines.Genetics, selection, evolution : GSE · 2014Article
- Indirect genetic effects contribute substantially to heritable variation in aggression-related traits in group-housed mink (Neovison vison).Genetics, selection, evolution : GSE · 2014Article
- The prospects of selection for social genetic effects to improve welfare and productivity in livestock.Frontiers in genetics · 2014Review
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3 authors.
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Abstract
backgroundThrough social interactions, individuals affect one another's phenotype. In such cases, an individual's phenotype is affected by the direct (genetic) effect of the individual itself and the indirect (genetic) effects of the group mates. Using data on individual phenotypes, direct and indirect genetic (co)variances can be estimated. Together, they compose the total genetic variance that determines a population's potential to respond to selection. However, it can be difficult or expensive to obtain individual phenotypes. Phenotypes on traits such as egg production and feed intake are, therefore, often collected on group level. In this study, we investigated whether direct, indirect and total genetic variances, and breeding values can be estimated from pooled data (pooled by group). In addition, we determined the optimal group composition, i.e. the optimal number of families represented in a group to minimise the standard error of the estimates.
methodsThis study was performed in three steps. First, all research questions were answered by theoretical derivations. Second, a simulation study was conducted to investigate the estimation of variance components and optimal group composition. Third, individual and pooled survival records on 12 944 purebred laying hens were analysed to investigate the estimation of breeding values and response to selection.
resultsThrough theoretical derivations and simulations, we showed that the total genetic variance can be estimated from pooled data, but the underlying direct and indirect genetic (co)variances cannot. Moreover, we showed that the most accurate estimates are obtained when group members belong to the same family. Additional theoretical derivations and data analyses on survival records showed that the total genetic variance and breeding values can be estimated from pooled data. Moreover, the correlation between the estimated total breeding values obtained from individual and pooled data was surprisingly close to one. This indicates that, for survival in purebred laying hens, loss in response to selection will be small when using pooled instead of individual data.
conclusionsUsing pooled data, the total genetic variance and breeding values can be estimated, but the underlying genetic components cannot. The most accurate estimates are obtained when group members belong to the same family.
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