Variation in yield over time in a cacao factorial mating design: changes in heritability and longitudinal data analyses over 13 consecutive years
The production period for perennial crops is often indeterminate. For cacao, the production period can last between 15 and 70 years. The implication for breeding is not easy. How many years of production are needed to propose new varieties? How are the production levels of several years linked at tree level? How is it possible to model series of production data over time? To answer these questions, data were analyzed from 13 years' production in a cacao factorial mating design. Genetic analyses of the number of healthy pods produced per year and per tree revealed that the inheritance of the trait is mainly additive, especially in the first 8 years of production; after this first period, a dominance effect appeared. Yield increased in the first 6 years, then decreased over time. The first major production (4th year) was a good predictor of cumulative yield, with a genetic correlation of 0.98. However, the shape of the yield trajectories varied depending on the families. Longitudinal data analyses were carried out to gain a clearer understanding of the link between the yields of successive years. When considering all 13 years, the best fit model was the antedependence model; this model indicated that the correlation between 2 successive years was stable, and the correlation between years decreased as the gap between years increased. When the first 3 years were not taken into account, the best fit model was a Compound Symmetry model, which indicated a large tree effect over time.
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Subjects: | F30 - Génétique et amélioration des plantes, U10 - Informatique, mathématiques et statistiques, Theobroma cacao, amélioration génétique, rendement, héritabilité génotypique, modèle linéaire, analyse de données, http://aims.fao.org/aos/agrovoc/c_7713, http://aims.fao.org/aos/agrovoc/c_49902, http://aims.fao.org/aos/agrovoc/c_8488, http://aims.fao.org/aos/agrovoc/c_1373982832607, http://aims.fao.org/aos/agrovoc/c_34040, http://aims.fao.org/aos/agrovoc/c_15962, http://aims.fao.org/aos/agrovoc/c_4027, |
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dig-cirad-fr-5925222024-01-29T01:58:57Z http://agritrop.cirad.fr/592522/ http://agritrop.cirad.fr/592522/ Variation in yield over time in a cacao factorial mating design: changes in heritability and longitudinal data analyses over 13 consecutive years. Tahi G.Mathias, Trebissou Caudou Inago, Ribeyre Fabienne, Guiraud Boguinard Sahin Hono, N' da Pokou Désiré, Cilas Christian. 2019. Euphytica, 215 (6):106, 12 p.https://doi.org/10.1007/s10681-019-2429-y <https://doi.org/10.1007/s10681-019-2429-y> Variation in yield over time in a cacao factorial mating design: changes in heritability and longitudinal data analyses over 13 consecutive years Tahi, G.Mathias Trebissou, Caudou Inago Ribeyre, Fabienne Guiraud, Boguinard Sahin Hono N' da Pokou, Désiré Cilas, Christian eng 2019 Euphytica F30 - Génétique et amélioration des plantes U10 - Informatique, mathématiques et statistiques Theobroma cacao amélioration génétique rendement héritabilité génotypique modèle linéaire analyse de données http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_49902 http://aims.fao.org/aos/agrovoc/c_8488 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_34040 http://aims.fao.org/aos/agrovoc/c_15962 Côte d'Ivoire http://aims.fao.org/aos/agrovoc/c_4027 The production period for perennial crops is often indeterminate. For cacao, the production period can last between 15 and 70 years. The implication for breeding is not easy. How many years of production are needed to propose new varieties? How are the production levels of several years linked at tree level? How is it possible to model series of production data over time? To answer these questions, data were analyzed from 13 years' production in a cacao factorial mating design. Genetic analyses of the number of healthy pods produced per year and per tree revealed that the inheritance of the trait is mainly additive, especially in the first 8 years of production; after this first period, a dominance effect appeared. Yield increased in the first 6 years, then decreased over time. The first major production (4th year) was a good predictor of cumulative yield, with a genetic correlation of 0.98. However, the shape of the yield trajectories varied depending on the families. Longitudinal data analyses were carried out to gain a clearer understanding of the link between the yields of successive years. When considering all 13 years, the best fit model was the antedependence model; this model indicated that the correlation between 2 successive years was stable, and the correlation between years decreased as the gap between years increased. When the first 3 years were not taken into account, the best fit model was a Compound Symmetry model, which indicated a large tree effect over time. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/592522/1/Tahi2019_Article_VariationInYieldOverTimeInACac.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1007/s10681-019-2429-y 10.1007/s10681-019-2429-y info:eu-repo/semantics/altIdentifier/doi/10.1007/s10681-019-2429-y info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1007/s10681-019-2429-y |
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F30 - Génétique et amélioration des plantes U10 - Informatique, mathématiques et statistiques Theobroma cacao amélioration génétique rendement héritabilité génotypique modèle linéaire analyse de données http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_49902 http://aims.fao.org/aos/agrovoc/c_8488 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_34040 http://aims.fao.org/aos/agrovoc/c_15962 http://aims.fao.org/aos/agrovoc/c_4027 F30 - Génétique et amélioration des plantes U10 - Informatique, mathématiques et statistiques Theobroma cacao amélioration génétique rendement héritabilité génotypique modèle linéaire analyse de données http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_49902 http://aims.fao.org/aos/agrovoc/c_8488 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_34040 http://aims.fao.org/aos/agrovoc/c_15962 http://aims.fao.org/aos/agrovoc/c_4027 |
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F30 - Génétique et amélioration des plantes U10 - Informatique, mathématiques et statistiques Theobroma cacao amélioration génétique rendement héritabilité génotypique modèle linéaire analyse de données http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_49902 http://aims.fao.org/aos/agrovoc/c_8488 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_34040 http://aims.fao.org/aos/agrovoc/c_15962 http://aims.fao.org/aos/agrovoc/c_4027 F30 - Génétique et amélioration des plantes U10 - Informatique, mathématiques et statistiques Theobroma cacao amélioration génétique rendement héritabilité génotypique modèle linéaire analyse de données http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_49902 http://aims.fao.org/aos/agrovoc/c_8488 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_34040 http://aims.fao.org/aos/agrovoc/c_15962 http://aims.fao.org/aos/agrovoc/c_4027 Tahi, G.Mathias Trebissou, Caudou Inago Ribeyre, Fabienne Guiraud, Boguinard Sahin Hono N' da Pokou, Désiré Cilas, Christian Variation in yield over time in a cacao factorial mating design: changes in heritability and longitudinal data analyses over 13 consecutive years |
description |
The production period for perennial crops is often indeterminate. For cacao, the production period can last between 15 and 70 years. The implication for breeding is not easy. How many years of production are needed to propose new varieties? How are the production levels of several years linked at tree level? How is it possible to model series of production data over time? To answer these questions, data were analyzed from 13 years' production in a cacao factorial mating design. Genetic analyses of the number of healthy pods produced per year and per tree revealed that the inheritance of the trait is mainly additive, especially in the first 8 years of production; after this first period, a dominance effect appeared. Yield increased in the first 6 years, then decreased over time. The first major production (4th year) was a good predictor of cumulative yield, with a genetic correlation of 0.98. However, the shape of the yield trajectories varied depending on the families. Longitudinal data analyses were carried out to gain a clearer understanding of the link between the yields of successive years. When considering all 13 years, the best fit model was the antedependence model; this model indicated that the correlation between 2 successive years was stable, and the correlation between years decreased as the gap between years increased. When the first 3 years were not taken into account, the best fit model was a Compound Symmetry model, which indicated a large tree effect over time. |
format |
article |
topic_facet |
F30 - Génétique et amélioration des plantes U10 - Informatique, mathématiques et statistiques Theobroma cacao amélioration génétique rendement héritabilité génotypique modèle linéaire analyse de données http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_49902 http://aims.fao.org/aos/agrovoc/c_8488 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_34040 http://aims.fao.org/aos/agrovoc/c_15962 http://aims.fao.org/aos/agrovoc/c_4027 |
author |
Tahi, G.Mathias Trebissou, Caudou Inago Ribeyre, Fabienne Guiraud, Boguinard Sahin Hono N' da Pokou, Désiré Cilas, Christian |
author_facet |
Tahi, G.Mathias Trebissou, Caudou Inago Ribeyre, Fabienne Guiraud, Boguinard Sahin Hono N' da Pokou, Désiré Cilas, Christian |
author_sort |
Tahi, G.Mathias |
title |
Variation in yield over time in a cacao factorial mating design: changes in heritability and longitudinal data analyses over 13 consecutive years |
title_short |
Variation in yield over time in a cacao factorial mating design: changes in heritability and longitudinal data analyses over 13 consecutive years |
title_full |
Variation in yield over time in a cacao factorial mating design: changes in heritability and longitudinal data analyses over 13 consecutive years |
title_fullStr |
Variation in yield over time in a cacao factorial mating design: changes in heritability and longitudinal data analyses over 13 consecutive years |
title_full_unstemmed |
Variation in yield over time in a cacao factorial mating design: changes in heritability and longitudinal data analyses over 13 consecutive years |
title_sort |
variation in yield over time in a cacao factorial mating design: changes in heritability and longitudinal data analyses over 13 consecutive years |
url |
http://agritrop.cirad.fr/592522/ http://agritrop.cirad.fr/592522/1/Tahi2019_Article_VariationInYieldOverTimeInACac.pdf |
work_keys_str_mv |
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_version_ |
1792499741188161536 |