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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
04/07/2017 |
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Data da última atualização: |
13/07/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROBERTO, I. J.; BITTENCOURT, P. S.; MUNIZ, F. L.; HERNÁNDEZ- RANGEL, S.; NÓBREGA, Y. C.; ÁVILA, R. W.; SOUZA, B. C.; ALVAREZ, G.; MIRANDA-CHUMACERO, G.; CAMPOS, Z.; FARIAS, I. P.; HRBEK, T. |
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Afiliação: |
IGOR J. ROBERTO, Federal University of Amazonas - UFAM; PEDRO S. BITTENCOURT, Federal University of Amazonas - UFAM; FABIO L. MUNIZ, Federal University of Amazonas - UFAM; SANDRA M. HERNÁNDEZ- RANGEL, Federal University of Amazonas - UFAM; YHURI C. NÓBREGA, Marcos Daniel Institute, Vitoria, ES; ROBSON W. ÁVILA, Federal University of Ceara - UFC; BRUNO C. SOUZA, Institute for Biodiversity Conservation - ICMBio; GUSTAVO ALVAREZ, Wildlife Conservation Society - WCS, Bolivia; GUIDO MIRANDA-CHUMACERO, Wildlife Conservation Society - WCS, Bolivia; ZILCA MARIA DA SILVA CAMPOS, CPAP; IZENI P. FARIAS, Federal University of Amazonas - UFAM; TOMAS HRBEK, Federal University of Amazonas - UFAM. |
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Título: |
Unexpected but unsurprising lineage diversity within the most widespread Neotropical crocodilian genus Caiman (Crocodylia, Alligatoridae). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Systematics and Biodiversity, v.18, n. 4, p. 377-395, 2020. |
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DOI: |
https://doi.org/10.1080/14772000.2020.1769222 |
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Idioma: |
Inglês |
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Conteúdo: |
Species discovery methods utilizing coalescent-based approaches are powerful tools for detecting cryptic lineages within morphological conservative groups, thus being an important methodology of integrative taxonomic research. Crocodilians are a classic example of morphologically conserved group where coalescence-based species delimitation analyses resulted in the discovery of cryptic lineages and potentially new species. In this study, we used several single locus species discovery methods to analyze the phylogenetic diversity of the most widespread alligatorid genus of the Neotropics, the genus Caiman. We analyzed 479 specimens representing all named taxa, with the exception of Caiman crocodilus apaporiensis, and known geographic distribution of these taxa. We observed high lineage diversity within the Caiman crocodilus/yacare complex, ranging from 7 to 10 lineages, and three lineages within Caiman latirostris. We also provide a new dated phylogeny for all the delimited lineages. Oligocene and Miocene events triggered the diversification of the major lineages, with latter Pleistocene events influencing the final diversification of the genus. We demonstrate that the discovered lineages within the Caiman complex are compatible with being species and as such are candidates for an integrated taxonomic analysis. However, it is important to highlight that independent of the future recognition of these lineages as species, it is extremely important to protect these cryptic lineages as unique evolutionary entities, many of which are highly threatened by habitat loss from dam construction projects, tailing dam collapses, mining, agriculture and agricultural run-off across all of South America. MenosSpecies discovery methods utilizing coalescent-based approaches are powerful tools for detecting cryptic lineages within morphological conservative groups, thus being an important methodology of integrative taxonomic research. Crocodilians are a classic example of morphologically conserved group where coalescence-based species delimitation analyses resulted in the discovery of cryptic lineages and potentially new species. In this study, we used several single locus species discovery methods to analyze the phylogenetic diversity of the most widespread alligatorid genus of the Neotropics, the genus Caiman. We analyzed 479 specimens representing all named taxa, with the exception of Caiman crocodilus apaporiensis, and known geographic distribution of these taxa. We observed high lineage diversity within the Caiman crocodilus/yacare complex, ranging from 7 to 10 lineages, and three lineages within Caiman latirostris. We also provide a new dated phylogeny for all the delimited lineages. Oligocene and Miocene events triggered the diversification of the major lineages, with latter Pleistocene events influencing the final diversification of the genus. We demonstrate that the discovered lineages within the Caiman complex are compatible with being species and as such are candidates for an integrated taxonomic analysis. However, it is important to highlight that independent of the future recognition of these lineages as species, it is extremely important to protect these cryptic lineag... Mostrar Tudo |
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Thesagro: |
Espécie; Jacaré; Taxonomia Animal. |
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Thesaurus Nal: |
Caiman crocodilus; Caiman yacare; Taxonomic Classification of Organisms. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02770naa a2200337 a 4500
001 2071932
005 2020-07-13
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/14772000.2020.1769222$2DOI
100 1 $aROBERTO, I. J.
245 $aUnexpected but unsurprising lineage diversity within the most widespread Neotropical crocodilian genus Caiman (Crocodylia, Alligatoridae).$h[electronic resource]
260 $c2020
520 $aSpecies discovery methods utilizing coalescent-based approaches are powerful tools for detecting cryptic lineages within morphological conservative groups, thus being an important methodology of integrative taxonomic research. Crocodilians are a classic example of morphologically conserved group where coalescence-based species delimitation analyses resulted in the discovery of cryptic lineages and potentially new species. In this study, we used several single locus species discovery methods to analyze the phylogenetic diversity of the most widespread alligatorid genus of the Neotropics, the genus Caiman. We analyzed 479 specimens representing all named taxa, with the exception of Caiman crocodilus apaporiensis, and known geographic distribution of these taxa. We observed high lineage diversity within the Caiman crocodilus/yacare complex, ranging from 7 to 10 lineages, and three lineages within Caiman latirostris. We also provide a new dated phylogeny for all the delimited lineages. Oligocene and Miocene events triggered the diversification of the major lineages, with latter Pleistocene events influencing the final diversification of the genus. We demonstrate that the discovered lineages within the Caiman complex are compatible with being species and as such are candidates for an integrated taxonomic analysis. However, it is important to highlight that independent of the future recognition of these lineages as species, it is extremely important to protect these cryptic lineages as unique evolutionary entities, many of which are highly threatened by habitat loss from dam construction projects, tailing dam collapses, mining, agriculture and agricultural run-off across all of South America.
650 $aCaiman crocodilus
650 $aCaiman yacare
650 $aTaxonomic Classification of Organisms
650 $aEspécie
650 $aJacaré
650 $aTaxonomia Animal
700 1 $aBITTENCOURT, P. S.
700 1 $aMUNIZ, F. L.
700 1 $aHERNÁNDEZ- RANGEL, S.
700 1 $aNÓBREGA, Y. C.
700 1 $aÁVILA, R. W.
700 1 $aSOUZA, B. C.
700 1 $aALVAREZ, G.
700 1 $aMIRANDA-CHUMACERO, G.
700 1 $aCAMPOS, Z.
700 1 $aFARIAS, I. P.
700 1 $aHRBEK, T.
773 $tSystematics and Biodiversity$gv.18, n. 4, p. 377-395, 2020.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Registro |
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Biblioteca(s): |
Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Rondônia; Embrapa Roraima. |
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Data corrente: |
16/12/2021 |
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Data da última atualização: |
20/01/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SILVA JUNIOR, E. C. da; DURAN, N. M.; LESSA, J. H. de L.; RIBEIRO, P. G.; WADT, L. H. de O.; SILVA, K. E. da; LIMA, R. M. B. de; BATISTA, K. D.; GUEDES, M. C.; OLIVEIRA JUNIOR, R. C. de; CARVALHO, H. W. P. de; REIS, A. R. dos; LOPES, G.; GUILHERME, L. R. G. |
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Afiliação: |
EDIU CARLOS DA SILVA JUNIOR, Federal University of Lavras; NÁDIA MARION DURAN, University of São Paulo; JOSIMAR HENRIQUE DE LIMA LESSA, Federal University of Lavras; PAULA GODINHO RIBEIRO, Federal University of Lavras; LUCIA HELENA DE OLIVEIRA WADT, CPAF-RO; KATIA EMIDIO DA SILVA, CPAA; ROBERVAL MONTEIRO BEZERRA DE LIMA, CPAA; KARINE DIAS BATISTA, CPAF-RR; MARCELINO CARNEIRO GUEDES, CPAF-AP; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; HUDSON WALLACE PEREIRA DE CARVALHO, University of São Paulo; ANDRÉ RODRIGUES DOS REIS, UNESP; GUILHERME LOPES, Federal University of Lavras; LUIZ ROBERTO GUIMARÃES GUILHERME, Federal University of Lavras. |
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Título: |
Unraveling the accumulation and localization of selenium and barium in Brazil nuts using spectroanalytical techniques. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Journal of Food Composition and Analysis, v. 106, art. 104329, March 2022. |
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DOI: |
https://doi.org/10.1016/j.jfca.2021.104329 |
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Idioma: |
Inglês |
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Conteúdo: |
Brazil nuts are native from the Amazon rainforest and their nuts are consumed worldwide having good sensory acceptability. However, knowledge gaps remain concerning elemental composition, localization, and interactions in Brazil nuts. This study presents a detailed assessment regarding the concentration and localization of relevant elements in Brazil nuts using different and complementary spectroanalytical techniques. Samples were collected from six sites of the Brazilian Amazon (Acre, Rondônia, Amazonas, Roraima, Para, and Amapá) and showed results for selenium (Se) concentration ranging from 0.46 to 356 μg g− 1 and barium (Ba) from 12.5 to 7,177 μg g− 1 . Then, a linear regression model fitted between Se and Ba concentration in Brazil nuts provided an R2 = 0.30. The spatial distribution of major and trace elements in Brazil nuts varied depending on the site of origin and concentration in the sample. The 2D maps performed via μ-XRF showed that Se accumulates mainly in the outer parenchyma tissue of Brazil nuts seeds forming a “ring” shape while Ba tends to accumulate in the epidermal tissue. The possibility of forming compounds of low solubility in Brazil nuts such as BaSO4 and BaSeO4 tends to increase when Ba and Se are higher respectively in the samples studied. |
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Palavras-Chave: |
2D mapping; Amazon rainforest; Castanha do brasil; Synchrotron; U-XRF. |
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Thesagro: |
Bário; Bertholletia Excelsa; Castanha do Para; Composição Química; Selênio. |
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Thesaurus NAL: |
Barium; Brazil nuts; Chemical composition; Minerals; Nutrition; Selenium. |
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Categoria do assunto: |
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K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/230398/1/cpafro-18676.pdf
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Marc: |
LEADER 02706naa a2200481 a 4500
001 2139200
005 2022-01-20
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jfca.2021.104329$2DOI
100 1 $aSILVA JUNIOR, E. C. da
245 $aUnraveling the accumulation and localization of selenium and barium in Brazil nuts using spectroanalytical techniques.$h[electronic resource]
260 $c2022
520 $aBrazil nuts are native from the Amazon rainforest and their nuts are consumed worldwide having good sensory acceptability. However, knowledge gaps remain concerning elemental composition, localization, and interactions in Brazil nuts. This study presents a detailed assessment regarding the concentration and localization of relevant elements in Brazil nuts using different and complementary spectroanalytical techniques. Samples were collected from six sites of the Brazilian Amazon (Acre, Rondônia, Amazonas, Roraima, Para, and Amapá) and showed results for selenium (Se) concentration ranging from 0.46 to 356 μg g− 1 and barium (Ba) from 12.5 to 7,177 μg g− 1 . Then, a linear regression model fitted between Se and Ba concentration in Brazil nuts provided an R2 = 0.30. The spatial distribution of major and trace elements in Brazil nuts varied depending on the site of origin and concentration in the sample. The 2D maps performed via μ-XRF showed that Se accumulates mainly in the outer parenchyma tissue of Brazil nuts seeds forming a “ring” shape while Ba tends to accumulate in the epidermal tissue. The possibility of forming compounds of low solubility in Brazil nuts such as BaSO4 and BaSeO4 tends to increase when Ba and Se are higher respectively in the samples studied.
650 $aBarium
650 $aBrazil nuts
650 $aChemical composition
650 $aMinerals
650 $aNutrition
650 $aSelenium
650 $aBário
650 $aBertholletia Excelsa
650 $aCastanha do Para
650 $aComposição Química
650 $aSelênio
653 $a2D mapping
653 $aAmazon rainforest
653 $aCastanha do brasil
653 $aSynchrotron
653 $aU-XRF
700 1 $aDURAN, N. M.
700 1 $aLESSA, J. H. de L.
700 1 $aRIBEIRO, P. G.
700 1 $aWADT, L. H. de O.
700 1 $aSILVA, K. E. da
700 1 $aLIMA, R. M. B. de
700 1 $aBATISTA, K. D.
700 1 $aGUEDES, M. C.
700 1 $aOLIVEIRA JUNIOR, R. C. de
700 1 $aCARVALHO, H. W. P. de
700 1 $aREIS, A. R. dos
700 1 $aLOPES, G.
700 1 $aGUILHERME, L. R. G.
773 $tJournal of Food Composition and Analysis$gv. 106, art. 104329, March 2022.
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Registro original: |
Embrapa Rondônia (CPAF-RO) |
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