Genetic diversity and structure in natural populations of Cajui from Brazilian Cerrado
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/53974 |
Resumo: | Cajui (Anacardium spp.) is a native fruit tree (small cashew) of the Brazilian Cerrado and possesses the potential for commercialization. However, cajui exploitation occurs exclusively through extractivism in the absence of conservation strategies. The lack of conservation strategies may lead to a decrease in genetic diversity of Anacardium. In this work, the genetic diversity and population structure of three natural populations in Sete Cidades National Park (PNSC; PI, Brazil) were assessed using ISSR analysis of 56 cajui accessions and two A. occidentale accessions (outgroup) from Pacajus (CE, Brazil). A total of 112 markers were obtained, 93 (83.04%) of which were polymorphic. The diversity indices of these populations indicated moderate levels of genetic diversity. According to AMOVA, 96.17% of the genetic variability lay within populations, with low genetic differentiation among populations (ΦST = 0.03828). Furthermore, STRUCTURE analysis indicated the existence of four connected genetic groups. The findings show that the individuals from the three collection sites did not represent different subpopulations, likely due to the high gene flow (Nm = 6.7) favored by the floral biology of Anacardium, pollinators and small-animal seed dispersers. This research identifies genetically divergent individuals (C-03, C-05, C-22, C-26, C-34 and C-39), which should be considered priority individuals for conservation and can inform conservation programs for Anacardium spp. |
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Genetic diversity and structure in natural populations of Cajui from Brazilian CerradoAnacardiumConservationGenetic resourcesPopulation structureAgricultural SciencesCajui (Anacardium spp.) is a native fruit tree (small cashew) of the Brazilian Cerrado and possesses the potential for commercialization. However, cajui exploitation occurs exclusively through extractivism in the absence of conservation strategies. The lack of conservation strategies may lead to a decrease in genetic diversity of Anacardium. In this work, the genetic diversity and population structure of three natural populations in Sete Cidades National Park (PNSC; PI, Brazil) were assessed using ISSR analysis of 56 cajui accessions and two A. occidentale accessions (outgroup) from Pacajus (CE, Brazil). A total of 112 markers were obtained, 93 (83.04%) of which were polymorphic. The diversity indices of these populations indicated moderate levels of genetic diversity. According to AMOVA, 96.17% of the genetic variability lay within populations, with low genetic differentiation among populations (ΦST = 0.03828). Furthermore, STRUCTURE analysis indicated the existence of four connected genetic groups. The findings show that the individuals from the three collection sites did not represent different subpopulations, likely due to the high gene flow (Nm = 6.7) favored by the floral biology of Anacardium, pollinators and small-animal seed dispersers. This research identifies genetically divergent individuals (C-03, C-05, C-22, C-26, C-34 and C-39), which should be considered priority individuals for conservation and can inform conservation programs for Anacardium spp.O cajuí (Anacardium spp.) é um fruto nativo do cerrado brasileiro e possui potencial para comercialização. Entretanto, a exploração do cajuí ocorre exclusivamente por meio do extrativismo, sem estratégias de conservação, o que pode diminuir sua diversidade genética. Neste trabalho, a diversidade genética e a estrutura populacional entre 56 acessos de cajuí de três populações naturais do Parque Nacional das Sete Cidades (PI, Brasil) e dois acessos de caju (grupo externo) do Banco de Germoplasma da Embrapa Meio-Norte foram mensuradas usando marcadores ISSR. Foram obtidos 112 marcadores, dos quais 93 (83,04%) foram polimórficos. Os índices de diversidade dessas populações mostraram um nível moderado de diversidade genética. A AMOVA indicou que 96,17% da variabilidade genética encontra-se dentro das populações, o que representa baixa diferenciação genética entre as mesmas (ΦST = 0,03828). A análise da estrutura genética indicou a existência de quatro grupos genéticos conectados. Portanto, os três locais de coleta não representaram subpopulações devido ao alto fluxo gênico (Nm = 6,7) favorecido pela biologia floral de Anacardium, bem como pelos polinizadores e pequenos animais dispersores de sementes. Os resultados desta pesquisa são úteis aos programas de conservação de Anacardium spp., pois permitiram identificar os acessos mais divergentes geneticamente (C-03, C-05, C-22, C-26, C-34 e C-39) e portanto, genótipos prioritários para conservação.EDUFU2021-12-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/5397410.14393/BJ-v37n0a2021-53974Bioscience Journal ; Vol. 37 (2021): Continuous Publication; e37080Bioscience Journal ; v. 37 (2021): Continuous Publication; e370801981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/53974/32957Brazil; Contemporary Copyright (c) 2021 Maria Fernanda da Costa Gomes, Artemisa Nazaré Costa Borges, Giovana Sarah Sales Batista, Gizele de Andrade Luz, Maria Edileide Alencar Oliveira, Ângela Celis de Almeida Lopes, Ademir Sérgio Ferreira de Araújo, Regina Lúcia Ferreira Gomes, Fábio Barros Britto, Paulo Sarmanho da Costa Lima, Sérgio Emílio dos Santos Valentehttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessda Costa Gomes, Maria Fernanda Nazaré Costa Borges, Artemisa Sarah Sales Batista, Giovana de Andrade Luz, Gizele Alencar Oliveira, Maria Edileide de Almeida Lopes, Ângela Celis Ferreira de Araújo, Ademir Sérgio Ferreira Gomes, Regina Lúcia Barros Britto, Fábio Sarmanho da Costa Lima, Paulo Emílio dos Santos Valente, Sérgio2022-05-25T13:30:11Zoai:ojs.www.seer.ufu.br:article/53974Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-05-25T13:30:11Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Genetic diversity and structure in natural populations of Cajui from Brazilian Cerrado |
title |
Genetic diversity and structure in natural populations of Cajui from Brazilian Cerrado |
spellingShingle |
Genetic diversity and structure in natural populations of Cajui from Brazilian Cerrado da Costa Gomes, Maria Fernanda Anacardium Conservation Genetic resources Population structure Agricultural Sciences |
title_short |
Genetic diversity and structure in natural populations of Cajui from Brazilian Cerrado |
title_full |
Genetic diversity and structure in natural populations of Cajui from Brazilian Cerrado |
title_fullStr |
Genetic diversity and structure in natural populations of Cajui from Brazilian Cerrado |
title_full_unstemmed |
Genetic diversity and structure in natural populations of Cajui from Brazilian Cerrado |
title_sort |
Genetic diversity and structure in natural populations of Cajui from Brazilian Cerrado |
author |
da Costa Gomes, Maria Fernanda |
author_facet |
da Costa Gomes, Maria Fernanda Nazaré Costa Borges, Artemisa Sarah Sales Batista, Giovana de Andrade Luz, Gizele Alencar Oliveira, Maria Edileide de Almeida Lopes, Ângela Celis Ferreira de Araújo, Ademir Sérgio Ferreira Gomes, Regina Lúcia Barros Britto, Fábio Sarmanho da Costa Lima, Paulo Emílio dos Santos Valente, Sérgio |
author_role |
author |
author2 |
Nazaré Costa Borges, Artemisa Sarah Sales Batista, Giovana de Andrade Luz, Gizele Alencar Oliveira, Maria Edileide de Almeida Lopes, Ângela Celis Ferreira de Araújo, Ademir Sérgio Ferreira Gomes, Regina Lúcia Barros Britto, Fábio Sarmanho da Costa Lima, Paulo Emílio dos Santos Valente, Sérgio |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
da Costa Gomes, Maria Fernanda Nazaré Costa Borges, Artemisa Sarah Sales Batista, Giovana de Andrade Luz, Gizele Alencar Oliveira, Maria Edileide de Almeida Lopes, Ângela Celis Ferreira de Araújo, Ademir Sérgio Ferreira Gomes, Regina Lúcia Barros Britto, Fábio Sarmanho da Costa Lima, Paulo Emílio dos Santos Valente, Sérgio |
dc.subject.por.fl_str_mv |
Anacardium Conservation Genetic resources Population structure Agricultural Sciences |
topic |
Anacardium Conservation Genetic resources Population structure Agricultural Sciences |
description |
Cajui (Anacardium spp.) is a native fruit tree (small cashew) of the Brazilian Cerrado and possesses the potential for commercialization. However, cajui exploitation occurs exclusively through extractivism in the absence of conservation strategies. The lack of conservation strategies may lead to a decrease in genetic diversity of Anacardium. In this work, the genetic diversity and population structure of three natural populations in Sete Cidades National Park (PNSC; PI, Brazil) were assessed using ISSR analysis of 56 cajui accessions and two A. occidentale accessions (outgroup) from Pacajus (CE, Brazil). A total of 112 markers were obtained, 93 (83.04%) of which were polymorphic. The diversity indices of these populations indicated moderate levels of genetic diversity. According to AMOVA, 96.17% of the genetic variability lay within populations, with low genetic differentiation among populations (ΦST = 0.03828). Furthermore, STRUCTURE analysis indicated the existence of four connected genetic groups. The findings show that the individuals from the three collection sites did not represent different subpopulations, likely due to the high gene flow (Nm = 6.7) favored by the floral biology of Anacardium, pollinators and small-animal seed dispersers. This research identifies genetically divergent individuals (C-03, C-05, C-22, C-26, C-34 and C-39), which should be considered priority individuals for conservation and can inform conservation programs for Anacardium spp. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-29 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/53974 10.14393/BJ-v37n0a2021-53974 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/53974 |
identifier_str_mv |
10.14393/BJ-v37n0a2021-53974 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/53974/32957 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 37 (2021): Continuous Publication; e37080 Bioscience Journal ; v. 37 (2021): Continuous Publication; e37080 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069082528317440 |