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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
20/07/2021 |
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Data da última atualização: |
20/07/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KIWUKA, C.; GOUDSMIT, E.; TOURNEBIZE, R.; AQUINO, S. O. de; DOUMA, J. C.; BELLANGER, L.; CROUZILLAT, D.; STOFFELEN, P.; SUMIRAT, U.; LEGNATÉ, H.; MARRACCINI, P.; KOCHKO, A. de; ANDRADE, A. C.; MULUMBA, J. W.; MUSOLI, P.; ANTEN, N. P. R.; PONCET, V. |
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Afiliação: |
CATHERINE KIWUKA, WAGENINGEN UNIVERSITY & RESEARCH; EVA GOUDSMIT, WAGENINGEN UNIVERSITY & RESEARCH; RÉMI TOURNEBIZE, UNIV. MONTPELLIER - CIRAD; SINARA OLIVEIRA DE AQUINO, UNIV. MONTPELLIER - CIRAD; JACOB C. DOUMA, WAGENINGEN UNIVERSITY & RESEARCH; LAURENCE BELLANGER, NESTLÉ RESEARCH; DOMINIQUE CROUZILLAT, NESTLÉ RESEARCH; PIET STOFFELEN, MEISE BOTANIC GARDEN; UCU SUMIRAT, ICCRI; HYACINTHE LEGNATÉ, CNRA; PIERRE MARRACCINI, UNIV. MONTPELLIER; ALEXANDRE DE KOCHKO, UNIV. MONTPELLIER; ALAN CARVALHO ANDRADE, CNPCa; JOHN WASSWA MULUMBA, NATIONAL AGRICULTURAL RESEARCH ORGANIZATION; PASCAL MUSOLI, NATIONAL AGRICULTURAL RESEARCH ORGANIZATION; NIELS P. R. ANTEN, WAGENINGEN UNIVERSITY & RESEARCH; VALÉRIE PONCET, UNIV. MONTPELLIER - CIRAD. |
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Título: |
Genetic diversity of native and cultivated Ugandan Robusta coffee (Coffea canephora Pierre ex A. Froehner): Climate influences, breeding potential and diversity conservation. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Plos One, v. 16, n. 2, p. e0245965, 2021. |
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DOI: |
https://doi.org/10.1371/journal.pone.0245965 |
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Idioma: |
Inglês |
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Conteúdo: |
Wild genetic resources and their ability to adapt to environmental change are critically important in light of the projected climate change, while constituting the foundation of agricultural sustainability. To address the expected negative effects of climate change on Robusta coffee trees (Coffea canephora), collecting missions were conducted to explore its current native distribution in Uganda over a broad climatic range. Wild material from seven forests could thus be collected. We used 19 microsatellite (SSR) markers to assess genetic diversity and structure of this material as well as material from two ex-situ collections and a feral population. The Ugandan C. canephora diversity was then positioned relative to the species? global diversity structure. Twenty-two climatic variables were used to explore variations in climatic zones across the sampled forests. Overall, Uganda's native C. canephora diversity differs from other known genetic groups of this species. In northwestern (NW) Uganda, four distinct genetic clusters were distinguished being from Zoka, Budongo, Itwara and Kibale forests A large southern-central (SC) cluster included Malabigambo, Mabira, and Kalangala forest accessions, as well as feral and cultivated accessions, suggesting similarity in genetic origin and strong gene flow between wild and cultivated compartments. We also confirmed the introduction of Congolese varieties into the SC region where most Robusta coffee production takes place. Identified populations occurred in divergent environmental conditions and 12 environmental variables significantly explained 16.3% of the total allelic variation across populations. The substantial genetic variation within and between Ugandan populations with different climatic envelopes might contain adaptive diversity to cope with climate change. The accessions that we collected have substantially enriched the diversity hosted in the Ugandan collections and thus contribute to ex situ conservation of this vital genetic resource. However, there is an urgent need to develop strategies to enhance complementary in-situ conservation of Coffea canephora in native forests in northwestern Uganda. MenosWild genetic resources and their ability to adapt to environmental change are critically important in light of the projected climate change, while constituting the foundation of agricultural sustainability. To address the expected negative effects of climate change on Robusta coffee trees (Coffea canephora), collecting missions were conducted to explore its current native distribution in Uganda over a broad climatic range. Wild material from seven forests could thus be collected. We used 19 microsatellite (SSR) markers to assess genetic diversity and structure of this material as well as material from two ex-situ collections and a feral population. The Ugandan C. canephora diversity was then positioned relative to the species? global diversity structure. Twenty-two climatic variables were used to explore variations in climatic zones across the sampled forests. Overall, Uganda's native C. canephora diversity differs from other known genetic groups of this species. In northwestern (NW) Uganda, four distinct genetic clusters were distinguished being from Zoka, Budongo, Itwara and Kibale forests A large southern-central (SC) cluster included Malabigambo, Mabira, and Kalangala forest accessions, as well as feral and cultivated accessions, suggesting similarity in genetic origin and strong gene flow between wild and cultivated compartments. We also confirmed the introduction of Congolese varieties into the SC region where most Robusta coffee production takes place. Identified popu... Mostrar Tudo |
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Thesagro: |
Coffea Canephora; Genética Vegetal; Mudança Climática; Variação Genética; Variedade. |
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Thesaurus Nal: |
Climate change; Coffea canephora var. ugandae; Genetic variation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/224555/1/Genetic-diversity-of-native.pdf
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Marc: |
LEADER 03463naa a2200421 a 4500
001 2133040
005 2021-07-20
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1371/journal.pone.0245965$2DOI
100 1 $aKIWUKA, C.
245 $aGenetic diversity of native and cultivated Ugandan Robusta coffee (Coffea canephora Pierre ex A. Froehner)$bClimate influences, breeding potential and diversity conservation.$h[electronic resource]
260 $c2021
520 $aWild genetic resources and their ability to adapt to environmental change are critically important in light of the projected climate change, while constituting the foundation of agricultural sustainability. To address the expected negative effects of climate change on Robusta coffee trees (Coffea canephora), collecting missions were conducted to explore its current native distribution in Uganda over a broad climatic range. Wild material from seven forests could thus be collected. We used 19 microsatellite (SSR) markers to assess genetic diversity and structure of this material as well as material from two ex-situ collections and a feral population. The Ugandan C. canephora diversity was then positioned relative to the species? global diversity structure. Twenty-two climatic variables were used to explore variations in climatic zones across the sampled forests. Overall, Uganda's native C. canephora diversity differs from other known genetic groups of this species. In northwestern (NW) Uganda, four distinct genetic clusters were distinguished being from Zoka, Budongo, Itwara and Kibale forests A large southern-central (SC) cluster included Malabigambo, Mabira, and Kalangala forest accessions, as well as feral and cultivated accessions, suggesting similarity in genetic origin and strong gene flow between wild and cultivated compartments. We also confirmed the introduction of Congolese varieties into the SC region where most Robusta coffee production takes place. Identified populations occurred in divergent environmental conditions and 12 environmental variables significantly explained 16.3% of the total allelic variation across populations. The substantial genetic variation within and between Ugandan populations with different climatic envelopes might contain adaptive diversity to cope with climate change. The accessions that we collected have substantially enriched the diversity hosted in the Ugandan collections and thus contribute to ex situ conservation of this vital genetic resource. However, there is an urgent need to develop strategies to enhance complementary in-situ conservation of Coffea canephora in native forests in northwestern Uganda.
650 $aClimate change
650 $aCoffea canephora var. ugandae
650 $aGenetic variation
650 $aCoffea Canephora
650 $aGenética Vegetal
650 $aMudança Climática
650 $aVariação Genética
650 $aVariedade
700 1 $aGOUDSMIT, E.
700 1 $aTOURNEBIZE, R.
700 1 $aAQUINO, S. O. de
700 1 $aDOUMA, J. C.
700 1 $aBELLANGER, L.
700 1 $aCROUZILLAT, D.
700 1 $aSTOFFELEN, P.
700 1 $aSUMIRAT, U.
700 1 $aLEGNATÉ, H.
700 1 $aMARRACCINI, P.
700 1 $aKOCHKO, A. de
700 1 $aANDRADE, A. C.
700 1 $aMULUMBA, J. W.
700 1 $aMUSOLI, P.
700 1 $aANTEN, N. P. R.
700 1 $aPONCET, V.
773 $tPlos One$gv. 16, n. 2, p. e0245965, 2021.
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Registro original: |
Embrapa Café (CNPCa) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
16/02/2007 |
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Data da última atualização: |
13/01/2010 |
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Autoria: |
DRECHSEL, M. M.; BALDANI, V. L. D. |
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Título: |
Métodos de desinfestação superficial para obtenção de sementes de milho livres de microrganismos. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Seropédica: Embrapa Agrobiologia, 2006. |
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Páginas: |
16 p. |
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Série: |
(Embrapa Agrobiologia. Documentos, 212). |
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ISSN: |
1517-8498 |
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Idioma: |
Português |
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Conteúdo: |
Aborda a avaliação de métodos de desinfestação superficial de sementes de milho visando a obtenção de sementes livres de microganismos. Sementes livres de mirganismos são importantes em estudos conduzidos em laboratórios onde se pretende avaliar o efeito de bacterias benéficas, como por exemplo as diazotróficas, no desenvolvimento das plantas. Neste estudo foram avaliados 6 métodos de desinfestação em diferentes variedades de milho cujos resultados mostraram que a eficiência do método varia com a variedade de milho e com a presença de fungicidas nas sementes. Alguns métodos promoveram inclusive a inibição da germinação das sementes. Portanto, deve-se realizar experimentos prévios para determinar o melhor método de desinfestação de sementes de milho. |
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Palavras-Chave: |
Maize. |
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Thesagro: |
Microrganismo; Milho. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPAB-2010/33984/1/doc212.pdf
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Marc: |
LEADER 01345nam a2200193 a 4500
001 1629227
005 2010-01-13
008 2006 bl uuuu u0uu1 u #d
022 $a1517-8498
100 1 $aDRECHSEL, M. M.
245 $aMétodos de desinfestação superficial para obtenção de sementes de milho livres de microrganismos.
260 $aSeropédica: Embrapa Agrobiologia$c2006
300 $a16 p.
490 $a(Embrapa Agrobiologia. Documentos, 212).
520 $aAborda a avaliação de métodos de desinfestação superficial de sementes de milho visando a obtenção de sementes livres de microganismos. Sementes livres de mirganismos são importantes em estudos conduzidos em laboratórios onde se pretende avaliar o efeito de bacterias benéficas, como por exemplo as diazotróficas, no desenvolvimento das plantas. Neste estudo foram avaliados 6 métodos de desinfestação em diferentes variedades de milho cujos resultados mostraram que a eficiência do método varia com a variedade de milho e com a presença de fungicidas nas sementes. Alguns métodos promoveram inclusive a inibição da germinação das sementes. Portanto, deve-se realizar experimentos prévios para determinar o melhor método de desinfestação de sementes de milho.
650 $aMicrorganismo
650 $aMilho
653 $aMaize
700 1 $aBALDANI, V. L. D.
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Embrapa Agrobiologia (CNPAB) |
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