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 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
29/09/2020 |
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Data da última atualização: |
07/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MAIA, T. A.; MACEL-ZAMBOLIM, E.; CAIXETA, E. T.; MIZUBUTI, E. S. G.; ZAMBOLIM, L. |
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Afiliação: |
T. A. MAIA, Departamento de Fitopatologia/BIOAGRO, Universidade Federal de Viçosa; E. Maciel-Zambolim, Departamento de Fitopatologia/BIOAGRO, Universidade Federal de Viçosa; EVELINE TEIXEIRA CAIXETA MOURA, CNPCa; E. S. G. Mizubuti, Departamento de Fitopatologia/BIOAGRO, Universidade Federal de Viçosa; L. Zambolim, Departamento de Fitopatologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa. |
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Título: |
The population structure of Hemileia vastatrix in Brazil inferred from AFLP. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Australasian Plant Pathology, v. 42, n. 5 , p. 533-542, 2013. |
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DOI: |
https://10.1007/s13313-013-0213-3 |
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Idioma: |
Inglês |
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Conteúdo: |
Efforts to obtain durable resistant cultivars to coffee leaf rust have a long history of disappointment because of the lack of information on the Hemileia vastatrix evolutionary potential. In this study, the AFLP marker was used to analyze the genetic structure of a field population of H. vastatrix from different coffee genotypes cultivated in a wide geographic region of Brazil?s main production areas. A total of 91 isolates were sampled from genotypes of Coffea arabica, C. canephora and Híbrido de Timor/Icatu derivatives. Each isolate exhibited unique multilocus AFLP genotypes with no identical isolates obtained from the same geographical and host origins. This finding was corroborated by a small correlation between genetic similarity and geographic distance (Rxy=0.31, P=0.23). The analyses showed a low genetic differentiation (GST=0.026) between the populations defined by a host and AMOVA analysis, most of the genetic variance (99.56 %) was attributed to differences within populations. In addition, based on the index of association (IA), the random mating possibility was not rejected (IA=0.225, P=0.123) for the population of H. vastatrix derived from C. canephora. This result suggested that H. vastatrix in Brazil behaves as a large undifferentiated population with a high level of genotypic diversity that is unstructured with regard to its geographic and host origins. |
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Palavras-Chave: |
Coffee leaf rust; Durable resistance. |
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Thesagro: |
Coffea Arábica; Coffea Canephora. |
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Thesaurus Nal: |
Population genetics. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02128naa a2200241 a 4500
001 2125183
005 2020-10-07
008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://10.1007/s13313-013-0213-3$2DOI
100 1 $aMAIA, T. A.
245 $aThe population structure of Hemileia vastatrix in Brazil inferred from AFLP.$h[electronic resource]
260 $c2013
520 $aEfforts to obtain durable resistant cultivars to coffee leaf rust have a long history of disappointment because of the lack of information on the Hemileia vastatrix evolutionary potential. In this study, the AFLP marker was used to analyze the genetic structure of a field population of H. vastatrix from different coffee genotypes cultivated in a wide geographic region of Brazil?s main production areas. A total of 91 isolates were sampled from genotypes of Coffea arabica, C. canephora and Híbrido de Timor/Icatu derivatives. Each isolate exhibited unique multilocus AFLP genotypes with no identical isolates obtained from the same geographical and host origins. This finding was corroborated by a small correlation between genetic similarity and geographic distance (Rxy=0.31, P=0.23). The analyses showed a low genetic differentiation (GST=0.026) between the populations defined by a host and AMOVA analysis, most of the genetic variance (99.56 %) was attributed to differences within populations. In addition, based on the index of association (IA), the random mating possibility was not rejected (IA=0.225, P=0.123) for the population of H. vastatrix derived from C. canephora. This result suggested that H. vastatrix in Brazil behaves as a large undifferentiated population with a high level of genotypic diversity that is unstructured with regard to its geographic and host origins.
650 $aPopulation genetics
650 $aCoffea Arábica
650 $aCoffea Canephora
653 $aCoffee leaf rust
653 $aDurable resistance
700 1 $aMACEL-ZAMBOLIM, E.
700 1 $aCAIXETA, E. T.
700 1 $aMIZUBUTI, E. S. G.
700 1 $aZAMBOLIM, L.
773 $tAustralasian Plant Pathology$gv. 42, n. 5 , p. 533-542, 2013.
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Registro original: |
Embrapa Café (CNPCa) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
11/03/2014 |
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Data da última atualização: |
08/11/2021 |
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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: |
NEHREN, U.; KIRCHNER, A.; SATTLER, D.; TURETTA, A. P. D.; HEINRICH, J. |
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Afiliação: |
UDO NEHREN, 1Institute for Technology and Resources Management in the Tropics and Subtropics, University of Applied Sciences Cologne; ANDRÉ KIRCHNER, Institute of Geography, Faculty of Physics and Earth Science, University of Leipzig.; DIETMAR SATTLER, Institute of Geography, Faculty of Physics and Earth Science, University of Leipzig, Johannisallee.; ANA PAULA DIAS TURETTA, CNPS; JÜRGEN HEINRICH, Institute of Geography, Faculty of Physics and Earth Science, University of Leipzig, Johannisallee. |
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Título: |
Impact of natural climate change and historical land use on landscape development in the Atlantic Forest of Rio de Janeiro, Brazil. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Anais da Academia Brasileira de Ciências, v. 85, n. 2, p. 497-518, 2013. |
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DOI: |
https://doi.org/10.1590/S0001-37652013000200004 |
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Idioma: |
Inglês |
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Conteúdo: |
Climate variations and historical land use had a major impact on landscape development in the Brazilian Atlantic Forest (Mata Atlântica). In southeast Brazil, rainforest expanded under warm-humid climate conditions in the late Holocene, but have been dramatically reduced in historical times. Nevertheless, the numerous remaining forest fragments are of outstanding biological richness. In our research in the Atlantic Forest of Rio de Janeiro we aim at the reconstruction of the late Quaternary landscape evolution and an assessment of human impact on landscapes and rainforests. In this context, special focus is given on (a) effects of climate variations on vegetation cover, soil development, and geomorphological processes, and (b) spatial and temporal land use and landscape degradation patterns. In this paper we present some new results of our interdisciplinary research in the Serra dos Órgãos mountain range, state of Rio de Janeiro. |
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Palavras-Chave: |
Atlantic Forest; Historical land use; Landscape development; Natural climate change; Rio de Janeiro. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/98949/1/Impact-of-natural.pdf
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Marc: |
LEADER 01759naa a2200241 a 4500
001 1982057
005 2021-11-08
008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S0001-37652013000200004$2DOI
100 1 $aNEHREN, U.
245 $aImpact of natural climate change and historical land use on landscape development in the Atlantic Forest of Rio de Janeiro, Brazil.$h[electronic resource]
260 $c2013
520 $aClimate variations and historical land use had a major impact on landscape development in the Brazilian Atlantic Forest (Mata Atlântica). In southeast Brazil, rainforest expanded under warm-humid climate conditions in the late Holocene, but have been dramatically reduced in historical times. Nevertheless, the numerous remaining forest fragments are of outstanding biological richness. In our research in the Atlantic Forest of Rio de Janeiro we aim at the reconstruction of the late Quaternary landscape evolution and an assessment of human impact on landscapes and rainforests. In this context, special focus is given on (a) effects of climate variations on vegetation cover, soil development, and geomorphological processes, and (b) spatial and temporal land use and landscape degradation patterns. In this paper we present some new results of our interdisciplinary research in the Serra dos Órgãos mountain range, state of Rio de Janeiro.
653 $aAtlantic Forest
653 $aHistorical land use
653 $aLandscape development
653 $aNatural climate change
653 $aRio de Janeiro
700 1 $aKIRCHNER, A.
700 1 $aSATTLER, D.
700 1 $aTURETTA, A. P. D.
700 1 $aHEINRICH, J.
773 $tAnais da Academia Brasileira de Ciências$gv. 85, n. 2, p. 497-518, 2013.
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