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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
15/05/2018 |
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Data da última atualização: |
22/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROWLAND, L.; COSTA, A. C. L. da; OLIVEIRA, A. A. R.; OLIVEIRA, R. S.; BITTENCOURT, P. L.; COSTA, P. B.; GILES, A. L.; SOSA, A. I.; COUGHLIN, I.; GODLEE, J. L.; VASCONCELOS, S. S.; S. JUNIOR, J. A.; FERREIRA, L. V.; MENCUCCINI, M.; MEIR, P. |
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Afiliação: |
Lucy Rowland, University of Exeter; Antonio C. L. da Costa, UFPA; Alex A. R. Oliveira, MPEG; Rafael S. Oliveira, UNICAMP; Paulo L. Bittencourt, UNICAMP; Patricia B. Costa, UNICAMP; Andre L. Giles, UNICAMP; Azul I. Sosa, UNICAMP; Ingrid Coughlin, USP; John L. Godlee, University of Edinburgh; STEEL SILVA VASCONCELOS, CPATU; João A. S. Junior, UFPA; Leandro V. Ferreira, MPEG; Maurizio Mencuccini, CREAF / ICREA; Patrick Meir, University of Edinburgh / Australian National University. |
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Título: |
Drought stress and tree size determine stem CO2 efflux in a tropical forest. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
New Phytologist, v. 218, n. 4, p. 1393-1405, June 2018. |
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DOI: |
10.1111/nph.15024 |
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Idioma: |
Inglês |
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Conteúdo: |
CO2 efflux from stems (CO2_stem) accounts for a substantial fraction of tropical forest gross primary productivity, but the climate sensitivity of this flux remains poorly understood. We present a study of tropical forest CO2_stem from 215 trees across wet and dry seasons, at the world?s longest running tropical forest drought experiment site. We show a 27% increase in wet season CO2_stem in the droughted forest relative to a control forest. This was driven by increasing CO2_stem in trees 10?40 cm diameter. Furthermore, we show that drought increases the proportion of maintenance to growth respiration in trees > 20 cm diameter, including large increases in maintenance respiration in the largest droughted trees, > 40 cm diameter. However, we found no clear taxonomic influence on CO2_stem and were unable to accurately predict how drought sensitivity altered ecosystem scale CO2_stem, due to substantial uncertainty introduced by contrasting methods previously employed to scale CO2_stem fluxes. Our findings indicate that under future scenarios of elevated drought, increases in CO2_stem may augment carbon losses, weakening or potentially reversing the tropical forest carbon sink. However, due to substantial uncertainties in scaling CO2_stem fluxes, stand-scale future estimates of changes in stem CO2 emissions remain highly uncertain. |
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Palavras-Chave: |
Estresse hídrico. |
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Thesagro: |
Carbono; Floresta; Floresta Tropical. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/176915/1/nph.15024.pdf
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Marc: |
LEADER 02323naa a2200349 a 4500
001 2091469
005 2018-05-22
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1111/nph.15024$2DOI
100 1 $aROWLAND, L.
245 $aDrought stress and tree size determine stem CO2 efflux in a tropical forest.$h[electronic resource]
260 $c2018
520 $aCO2 efflux from stems (CO2_stem) accounts for a substantial fraction of tropical forest gross primary productivity, but the climate sensitivity of this flux remains poorly understood. We present a study of tropical forest CO2_stem from 215 trees across wet and dry seasons, at the world?s longest running tropical forest drought experiment site. We show a 27% increase in wet season CO2_stem in the droughted forest relative to a control forest. This was driven by increasing CO2_stem in trees 10?40 cm diameter. Furthermore, we show that drought increases the proportion of maintenance to growth respiration in trees > 20 cm diameter, including large increases in maintenance respiration in the largest droughted trees, > 40 cm diameter. However, we found no clear taxonomic influence on CO2_stem and were unable to accurately predict how drought sensitivity altered ecosystem scale CO2_stem, due to substantial uncertainty introduced by contrasting methods previously employed to scale CO2_stem fluxes. Our findings indicate that under future scenarios of elevated drought, increases in CO2_stem may augment carbon losses, weakening or potentially reversing the tropical forest carbon sink. However, due to substantial uncertainties in scaling CO2_stem fluxes, stand-scale future estimates of changes in stem CO2 emissions remain highly uncertain.
650 $aCarbono
650 $aFloresta
650 $aFloresta Tropical
653 $aEstresse hídrico
700 1 $aCOSTA, A. C. L. da
700 1 $aOLIVEIRA, A. A. R.
700 1 $aOLIVEIRA, R. S.
700 1 $aBITTENCOURT, P. L.
700 1 $aCOSTA, P. B.
700 1 $aGILES, A. L.
700 1 $aSOSA, A. I.
700 1 $aCOUGHLIN, I.
700 1 $aGODLEE, J. L.
700 1 $aVASCONCELOS, S. S.
700 1 $aS. JUNIOR, J. A.
700 1 $aFERREIRA, L. V.
700 1 $aMENCUCCINI, M.
700 1 $aMEIR, P.
773 $tNew Phytologist$gv. 218, n. 4, p. 1393-1405, June 2018.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
04/11/2015 |
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Data da última atualização: |
22/06/2016 |
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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: |
HONGO, J. A.; CASTRO, G. M. de; CINTRA, L. C.; ZERLOTINI, A.; LOBO, F. P. |
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Afiliação: |
JORGE A. HONGO, Bolsista CNPTIA; GIOVANNI M. DE CASTRO, Bolsista CNPTIA; LEANDRO CARRIJO CINTRA, CNPTIA; ADHEMAR ZERLOTINI NETO, CNPTIA; FRANCISCO PEREIRA LOBO, CNPTIA. |
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Título: |
POTION: an end-to-end pipeline for positive Darwinian selection detection in genome-scale data through phylogenetic comparison of protein-coding genes. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
BMC Genomics, London, v. 16, p. 1-16, Aug. 2015. |
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DOI: |
10.1186/s12864-015-1765-0 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Background: Detection of genes evolving under positive Darwinian evolution in genome-scale data is nowadays a prevailing strategy in comparative genomics studies to identify genes potentially involved in adaptation processes. Despite the large number of studies aiming to detect and contextualize such gene sets, there is virtually no software available to perform this task in a general, automatic, large-scale and reliable manner. This certainly occurs due to the computational challenges involved in this task, such as the appropriate modeling of data under analysis, the computation time to perform several of the required steps when dealing with genome-scale data and the highly error-prone nature of the sequence and alignment data structures needed for genome-wide positive selection detection. |
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Palavras-Chave: |
Comparative genomics; Evolução Darwiniana; Positive selection; Potion. |
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Thesagro: |
Fenótipo; Gene; Pesquisa. |
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Thesaurus NAL: |
Genes; Genome; Genomics; Phylogeny. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/132445/1/POTION.PDF
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Marc: |
LEADER 01725naa a2200313 a 4500
001 2027912
005 2016-06-22
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1186/s12864-015-1765-0$2DOI
100 1 $aHONGO, J. A.
245 $aPOTION$ban end-to-end pipeline for positive Darwinian selection detection in genome-scale data through phylogenetic comparison of protein-coding genes.$h[electronic resource]
260 $c2015
520 $aAbstract: Background: Detection of genes evolving under positive Darwinian evolution in genome-scale data is nowadays a prevailing strategy in comparative genomics studies to identify genes potentially involved in adaptation processes. Despite the large number of studies aiming to detect and contextualize such gene sets, there is virtually no software available to perform this task in a general, automatic, large-scale and reliable manner. This certainly occurs due to the computational challenges involved in this task, such as the appropriate modeling of data under analysis, the computation time to perform several of the required steps when dealing with genome-scale data and the highly error-prone nature of the sequence and alignment data structures needed for genome-wide positive selection detection.
650 $aGenes
650 $aGenome
650 $aGenomics
650 $aPhylogeny
650 $aFenótipo
650 $aGene
650 $aPesquisa
653 $aComparative genomics
653 $aEvolução Darwiniana
653 $aPositive selection
653 $aPotion
700 1 $aCASTRO, G. M. de
700 1 $aCINTRA, L. C.
700 1 $aZERLOTINI, A.
700 1 $aLOBO, F. P.
773 $tBMC Genomics, London$gv. 16, p. 1-16, Aug. 2015.
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Embrapa Agricultura Digital (CNPTIA) |
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