Phenotypic variation, functional traits repeatability and core collection inference in Synsepalum dulcificum (Schumach & Thonn.) Daniell reveals the Dahomey Gap as a centre of diversity
The miracle plant Synsepalum dulcificum is a multipurpose natural sweetener and a promising West African orphan fruit shrub candidate for genetic improvement. Unfortunately, basic knowledge such as phenotypic variation and inheritance estimates required for implementing a breeding program are still lacking. A set of 203 accessions were sampled in two habitats from seven populations spread across the Dahomey Gap (DG) and the Upper Guinea forest (UG) in West Africa. The phenotypic diversity and allometric relationships among functional traits were analysed; the broad-sense heritability was estimated for fruit-traits, and a mini-core collection was developed in the species. Quantitative variation in tree- and fruit-traits was recorded, and multivariate analyses were performed to assess relationships among accessions, whereas heritability was estimated using the coefficient of repeatability. Tree-traits observed in S. dulcificum were more variable than fruit-traits. While habitat-type only affected tree-traits, the provenance population significantly affected both fruit- and tree-traits, with the UG populations outperforming the DG ones. Significant correlations were observed among fruit-traits on one hand, and among tree-traits on the other hand, whereas poor correlations were observed between tree- and fruit-traits. The multivariate analysis grouped accessions in three clusters. Promising individuals for high fruit mass and pulp-dense genotypes' selection were identified within clusters. Repeatability estimates for fruit-traits ranged from 0.015 (edible ratio) to 0.88 (fruit mass). The Core Hunter algorithm enabled the extraction of 41 individuals as robust representatives of the initial set of 203 accessions, and the mapping of this core collection suggested Dahomey Gap as a centre of diversity of the species. These original findings offer opportunities, not only for the genetic improvement of S. dulcificum, but also for targeted ex-situ conservation in the species.
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dig-cirad-fr-605401 |
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Francia |
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Europa del Oeste |
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Biblioteca del CIRAD Francia |
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eng |
topic |
phénotype héritabilité variation génétique édulcorant variation phénotypique conservation des ressources génétiques amélioration des plantes héritabilité génotypique ressource génétique végétale http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_642 http://aims.fao.org/aos/agrovoc/c_903c4959 http://aims.fao.org/aos/agrovoc/c_37280 http://aims.fao.org/aos/agrovoc/c_5956 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_37419 http://aims.fao.org/aos/agrovoc/c_875 http://aims.fao.org/aos/agrovoc/c_8355 http://aims.fao.org/aos/agrovoc/c_3423 http://aims.fao.org/aos/agrovoc/c_7801 http://aims.fao.org/aos/agrovoc/c_3253 http://aims.fao.org/aos/agrovoc/c_8500 phénotype héritabilité variation génétique édulcorant variation phénotypique conservation des ressources génétiques amélioration des plantes héritabilité génotypique ressource génétique végétale http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_642 http://aims.fao.org/aos/agrovoc/c_903c4959 http://aims.fao.org/aos/agrovoc/c_37280 http://aims.fao.org/aos/agrovoc/c_5956 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_37419 http://aims.fao.org/aos/agrovoc/c_875 http://aims.fao.org/aos/agrovoc/c_8355 http://aims.fao.org/aos/agrovoc/c_3423 http://aims.fao.org/aos/agrovoc/c_7801 http://aims.fao.org/aos/agrovoc/c_3253 http://aims.fao.org/aos/agrovoc/c_8500 |
spellingShingle |
phénotype héritabilité variation génétique édulcorant variation phénotypique conservation des ressources génétiques amélioration des plantes héritabilité génotypique ressource génétique végétale http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_642 http://aims.fao.org/aos/agrovoc/c_903c4959 http://aims.fao.org/aos/agrovoc/c_37280 http://aims.fao.org/aos/agrovoc/c_5956 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_37419 http://aims.fao.org/aos/agrovoc/c_875 http://aims.fao.org/aos/agrovoc/c_8355 http://aims.fao.org/aos/agrovoc/c_3423 http://aims.fao.org/aos/agrovoc/c_7801 http://aims.fao.org/aos/agrovoc/c_3253 http://aims.fao.org/aos/agrovoc/c_8500 phénotype héritabilité variation génétique édulcorant variation phénotypique conservation des ressources génétiques amélioration des plantes héritabilité génotypique ressource génétique végétale http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_642 http://aims.fao.org/aos/agrovoc/c_903c4959 http://aims.fao.org/aos/agrovoc/c_37280 http://aims.fao.org/aos/agrovoc/c_5956 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_37419 http://aims.fao.org/aos/agrovoc/c_875 http://aims.fao.org/aos/agrovoc/c_8355 http://aims.fao.org/aos/agrovoc/c_3423 http://aims.fao.org/aos/agrovoc/c_7801 http://aims.fao.org/aos/agrovoc/c_3253 http://aims.fao.org/aos/agrovoc/c_8500 Tchokponhoué, Dèdéou A. Achigan-Dako, Enoch G. N'Danikou, Sognigbé Nyadanu, Daniel Kahane, Rémi Houéto, Jacob Fassinou Hotegni, Vodjo Nicodème Odindo, Alfred O. Sibiya, Julia Phenotypic variation, functional traits repeatability and core collection inference in Synsepalum dulcificum (Schumach & Thonn.) Daniell reveals the Dahomey Gap as a centre of diversity |
description |
The miracle plant Synsepalum dulcificum is a multipurpose natural sweetener and a promising West African orphan fruit shrub candidate for genetic improvement. Unfortunately, basic knowledge such as phenotypic variation and inheritance estimates required for implementing a breeding program are still lacking. A set of 203 accessions were sampled in two habitats from seven populations spread across the Dahomey Gap (DG) and the Upper Guinea forest (UG) in West Africa. The phenotypic diversity and allometric relationships among functional traits were analysed; the broad-sense heritability was estimated for fruit-traits, and a mini-core collection was developed in the species. Quantitative variation in tree- and fruit-traits was recorded, and multivariate analyses were performed to assess relationships among accessions, whereas heritability was estimated using the coefficient of repeatability. Tree-traits observed in S. dulcificum were more variable than fruit-traits. While habitat-type only affected tree-traits, the provenance population significantly affected both fruit- and tree-traits, with the UG populations outperforming the DG ones. Significant correlations were observed among fruit-traits on one hand, and among tree-traits on the other hand, whereas poor correlations were observed between tree- and fruit-traits. The multivariate analysis grouped accessions in three clusters. Promising individuals for high fruit mass and pulp-dense genotypes' selection were identified within clusters. Repeatability estimates for fruit-traits ranged from 0.015 (edible ratio) to 0.88 (fruit mass). The Core Hunter algorithm enabled the extraction of 41 individuals as robust representatives of the initial set of 203 accessions, and the mapping of this core collection suggested Dahomey Gap as a centre of diversity of the species. These original findings offer opportunities, not only for the genetic improvement of S. dulcificum, but also for targeted ex-situ conservation in the species. |
format |
article |
topic_facet |
phénotype héritabilité variation génétique édulcorant variation phénotypique conservation des ressources génétiques amélioration des plantes héritabilité génotypique ressource génétique végétale http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_642 http://aims.fao.org/aos/agrovoc/c_903c4959 http://aims.fao.org/aos/agrovoc/c_37280 http://aims.fao.org/aos/agrovoc/c_5956 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_37419 http://aims.fao.org/aos/agrovoc/c_875 http://aims.fao.org/aos/agrovoc/c_8355 http://aims.fao.org/aos/agrovoc/c_3423 http://aims.fao.org/aos/agrovoc/c_7801 http://aims.fao.org/aos/agrovoc/c_3253 http://aims.fao.org/aos/agrovoc/c_8500 |
author |
Tchokponhoué, Dèdéou A. Achigan-Dako, Enoch G. N'Danikou, Sognigbé Nyadanu, Daniel Kahane, Rémi Houéto, Jacob Fassinou Hotegni, Vodjo Nicodème Odindo, Alfred O. Sibiya, Julia |
author_facet |
Tchokponhoué, Dèdéou A. Achigan-Dako, Enoch G. N'Danikou, Sognigbé Nyadanu, Daniel Kahane, Rémi Houéto, Jacob Fassinou Hotegni, Vodjo Nicodème Odindo, Alfred O. Sibiya, Julia |
author_sort |
Tchokponhoué, Dèdéou A. |
title |
Phenotypic variation, functional traits repeatability and core collection inference in Synsepalum dulcificum (Schumach & Thonn.) Daniell reveals the Dahomey Gap as a centre of diversity |
title_short |
Phenotypic variation, functional traits repeatability and core collection inference in Synsepalum dulcificum (Schumach & Thonn.) Daniell reveals the Dahomey Gap as a centre of diversity |
title_full |
Phenotypic variation, functional traits repeatability and core collection inference in Synsepalum dulcificum (Schumach & Thonn.) Daniell reveals the Dahomey Gap as a centre of diversity |
title_fullStr |
Phenotypic variation, functional traits repeatability and core collection inference in Synsepalum dulcificum (Schumach & Thonn.) Daniell reveals the Dahomey Gap as a centre of diversity |
title_full_unstemmed |
Phenotypic variation, functional traits repeatability and core collection inference in Synsepalum dulcificum (Schumach & Thonn.) Daniell reveals the Dahomey Gap as a centre of diversity |
title_sort |
phenotypic variation, functional traits repeatability and core collection inference in synsepalum dulcificum (schumach & thonn.) daniell reveals the dahomey gap as a centre of diversity |
url |
http://agritrop.cirad.fr/605401/ http://agritrop.cirad.fr/605401/1/605401.pdf |
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dig-cirad-fr-6054012024-01-29T06:04:54Z http://agritrop.cirad.fr/605401/ http://agritrop.cirad.fr/605401/ Phenotypic variation, functional traits repeatability and core collection inference in Synsepalum dulcificum (Schumach & Thonn.) Daniell reveals the Dahomey Gap as a centre of diversity. Tchokponhoué Dèdéou A., Achigan-Dako Enoch G., N'Danikou Sognigbé, Nyadanu Daniel, Kahane Rémi, Houéto Jacob, Fassinou Hotegni Vodjo Nicodème, Odindo Alfred O., Sibiya Julia. 2020. Scientific Reports, 10:19538, 17 p.https:/doi.org/10.1038/s41598-020-76103-4 <https:/doi.org/10.1038/s41598-020-76103-4> Phenotypic variation, functional traits repeatability and core collection inference in Synsepalum dulcificum (Schumach & Thonn.) Daniell reveals the Dahomey Gap as a centre of diversity Tchokponhoué, Dèdéou A. Achigan-Dako, Enoch G. N'Danikou, Sognigbé Nyadanu, Daniel Kahane, Rémi Houéto, Jacob Fassinou Hotegni, Vodjo Nicodème Odindo, Alfred O. Sibiya, Julia eng 2020 Scientific Reports phénotype héritabilité variation génétique édulcorant variation phénotypique conservation des ressources génétiques amélioration des plantes héritabilité génotypique ressource génétique végétale http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_642 http://aims.fao.org/aos/agrovoc/c_903c4959 http://aims.fao.org/aos/agrovoc/c_37280 http://aims.fao.org/aos/agrovoc/c_5956 http://aims.fao.org/aos/agrovoc/c_1373982832607 http://aims.fao.org/aos/agrovoc/c_37419 Bénin Afrique occidentale Guinée Togo Ghana République démocratique du Congo http://aims.fao.org/aos/agrovoc/c_875 http://aims.fao.org/aos/agrovoc/c_8355 http://aims.fao.org/aos/agrovoc/c_3423 http://aims.fao.org/aos/agrovoc/c_7801 http://aims.fao.org/aos/agrovoc/c_3253 http://aims.fao.org/aos/agrovoc/c_8500 The miracle plant Synsepalum dulcificum is a multipurpose natural sweetener and a promising West African orphan fruit shrub candidate for genetic improvement. Unfortunately, basic knowledge such as phenotypic variation and inheritance estimates required for implementing a breeding program are still lacking. A set of 203 accessions were sampled in two habitats from seven populations spread across the Dahomey Gap (DG) and the Upper Guinea forest (UG) in West Africa. The phenotypic diversity and allometric relationships among functional traits were analysed; the broad-sense heritability was estimated for fruit-traits, and a mini-core collection was developed in the species. Quantitative variation in tree- and fruit-traits was recorded, and multivariate analyses were performed to assess relationships among accessions, whereas heritability was estimated using the coefficient of repeatability. Tree-traits observed in S. dulcificum were more variable than fruit-traits. While habitat-type only affected tree-traits, the provenance population significantly affected both fruit- and tree-traits, with the UG populations outperforming the DG ones. Significant correlations were observed among fruit-traits on one hand, and among tree-traits on the other hand, whereas poor correlations were observed between tree- and fruit-traits. The multivariate analysis grouped accessions in three clusters. Promising individuals for high fruit mass and pulp-dense genotypes' selection were identified within clusters. Repeatability estimates for fruit-traits ranged from 0.015 (edible ratio) to 0.88 (fruit mass). The Core Hunter algorithm enabled the extraction of 41 individuals as robust representatives of the initial set of 203 accessions, and the mapping of this core collection suggested Dahomey Gap as a centre of diversity of the species. These original findings offer opportunities, not only for the genetic improvement of S. dulcificum, but also for targeted ex-situ conservation in the species. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/605401/1/605401.pdf text cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ https:/doi.org/10.1038/s41598-020-76103-4 10.1038/s41598-020-76103-4 info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-020-76103-4 info:eu-repo/semantics/altIdentifier/purl/https:/doi.org/10.1038/s41598-020-76103-4 |