Genetic variability of cocoa from the amazon basin: implications for genetic conservation
The cocoa and chocolate production chain involves US$60 billion annually and three million farmers around the world, in an area exceeding nine million hectares. The use of wild germplasm will enable to generate new disease- and pest-resistant cultivars and ability to adapt to changing environments....
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| Format: | Article |
| Language: | English |
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Universidade Federal de Uberlândia
2023-02-01
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| Series: | Bioscience Journal |
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| Online Access: | https://seer.ufu.br/index.php/biosciencejournal/article/view/63126 |
| _version_ | 1811169808696213504 |
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| author | Maria Eduarda Santos Guimarães Luiz Antônio dos Santos Dias Caio Márcio Vasconcelos Cordeiro de Almeida Carlos Alberto Spaggiari Souza Odimar Ferreira Almeida Thais Roseli Corrêa |
| author_facet | Maria Eduarda Santos Guimarães Luiz Antônio dos Santos Dias Caio Márcio Vasconcelos Cordeiro de Almeida Carlos Alberto Spaggiari Souza Odimar Ferreira Almeida Thais Roseli Corrêa |
| author_sort | Maria Eduarda Santos Guimarães |
| collection | DOAJ |
| description | The cocoa and chocolate production chain involves US$60 billion annually and three million farmers around the world, in an area exceeding nine million hectares. The use of wild germplasm will enable to generate new disease- and pest-resistant cultivars and ability to adapt to changing environments. Here we evaluated 145 cocoa accessions, originated from nine Amazonian basins, based on eight fruit traits. Univariate anova showed significant differences (p<0.05) for all traits. For seven traits, the variance component within basins was higher (81.5%, on average). Therefore, it is recommended that the collection of wild accessions prioritize a larger number of plants from a few populations of the most divergent basins. The multivariate analyses revealed a greater divergence between the Ji-Paraná-RO and Solimões/Amazonas-PA basins (27.69) and a greater similarity between Alien clones-PER and Solimões/Amazonas-AM (0.66) in relation to their populations. They also revealed that the accessions differentiation occurred according to the river basin system. These results allowed elucidate the genetic structure and distribution of cacao populations. In addition, strengthen the importance of collecting and conserving germplasm to preserve genetic resources. |
| first_indexed | 2024-04-10T16:47:48Z |
| format | Article |
| id | doaj.art-98c2d7ed043c4c55b4e430ed4662ed09 |
| institution | Directory Open Access Journal |
| issn | 1981-3163 |
| language | English |
| last_indexed | 2024-04-10T16:47:48Z |
| publishDate | 2023-02-01 |
| publisher | Universidade Federal de Uberlândia |
| record_format | Article |
| series | Bioscience Journal |
| spelling | doaj.art-98c2d7ed043c4c55b4e430ed4662ed092023-02-07T19:06:26ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632023-02-0139e39020e3902010.14393/BJ-v39n0a2023-6312635391Genetic variability of cocoa from the amazon basin: implications for genetic conservationMaria Eduarda Santos Guimarães0https://orcid.org/0000-0001-8207-2355Luiz Antônio dos Santos Dias1https://orcid.org/0000-0002-1828-6938Caio Márcio Vasconcelos Cordeiro de Almeida2Carlos Alberto Spaggiari Souza3https://orcid.org/0000-0001-7424-8277Odimar Ferreira Almeida4Thais Roseli Corrêa5Universidade Federal de ViçosaUniversidade Federal de Viçosa Comitê Executivo do Plano da Lavoura CacaueiraComitê Executivo do Plano da Lavoura CacaueiraUniversidade Federal de ViçosaUniversidade Estadual do MaranhãoThe cocoa and chocolate production chain involves US$60 billion annually and three million farmers around the world, in an area exceeding nine million hectares. The use of wild germplasm will enable to generate new disease- and pest-resistant cultivars and ability to adapt to changing environments. Here we evaluated 145 cocoa accessions, originated from nine Amazonian basins, based on eight fruit traits. Univariate anova showed significant differences (p<0.05) for all traits. For seven traits, the variance component within basins was higher (81.5%, on average). Therefore, it is recommended that the collection of wild accessions prioritize a larger number of plants from a few populations of the most divergent basins. The multivariate analyses revealed a greater divergence between the Ji-Paraná-RO and Solimões/Amazonas-PA basins (27.69) and a greater similarity between Alien clones-PER and Solimões/Amazonas-AM (0.66) in relation to their populations. They also revealed that the accessions differentiation occurred according to the river basin system. These results allowed elucidate the genetic structure and distribution of cacao populations. In addition, strengthen the importance of collecting and conserving germplasm to preserve genetic resources.https://seer.ufu.br/index.php/biosciencejournal/article/view/63126amazon basincacaogenebankgenetic diversitytheobroma cacao l. |
| spellingShingle | Maria Eduarda Santos Guimarães Luiz Antônio dos Santos Dias Caio Márcio Vasconcelos Cordeiro de Almeida Carlos Alberto Spaggiari Souza Odimar Ferreira Almeida Thais Roseli Corrêa Genetic variability of cocoa from the amazon basin: implications for genetic conservation Bioscience Journal amazon basin cacao genebank genetic diversity theobroma cacao l. |
| title | Genetic variability of cocoa from the amazon basin: implications for genetic conservation |
| title_full | Genetic variability of cocoa from the amazon basin: implications for genetic conservation |
| title_fullStr | Genetic variability of cocoa from the amazon basin: implications for genetic conservation |
| title_full_unstemmed | Genetic variability of cocoa from the amazon basin: implications for genetic conservation |
| title_short | Genetic variability of cocoa from the amazon basin: implications for genetic conservation |
| title_sort | genetic variability of cocoa from the amazon basin implications for genetic conservation |
| topic | amazon basin cacao genebank genetic diversity theobroma cacao l. |
| url | https://seer.ufu.br/index.php/biosciencejournal/article/view/63126 |
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