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| Registros recuperados : 10 | |
| 2. |  | OLIVEIRA, C. L. de; NORMANDO, C.; PIMENTEL, M. A. G.; MENDES, S. M.; MENEZES, C. B. de. Avaliação de híbridos experimentais de sorgo granífero sob infestação de Sitophilus zeamais. In: WORKSHOP INTERNACIONAL DE DEFESA SANITÁRIA VEGETAL, 2., 2020, Viçosa, MG. Anais... Viçosa, MG: Universidade Federal de Viçosa, 2020. p. 59.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 3. | | NORMANDO, C. A.; OLIVEIRA, C. L. de; PIMENTEL, M. A. G.; MENDES, S. M.; MENEZES, C. B. de. Modelo para estimativa de perda de massa específica causada por Sitophilus zeamais em grãos de sorgo armazenados. In: WORKSHOP INTERNACIONAL DE DEFESA SANITÁRIA VEGETAL, 2., 2020, Viçosa, MG. Anais... Viçosa, MG: Universidade Federal de Viçosa, 2020. p. 168.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 4. | | NORMANDO, C. A.; OLIVEIRA, C. L. de; PIMENTEL, M. A. G.; MENDES, S. M.; MENEZES, C. B. de. Suscetibilidade de híbridos comerciais de sorgo granífero ao caruncho do milho Sitophilus zeamais. In: WORKSHOP INTERNACIONAL DE DEFESA SANITÁRIA VEGETAL, 2., 2020, Viçosa, MG. Anais... Viçosa, MG: Universidade Federal de Viçosa, 2020. p. 71.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 6. | | SOUZA, E. G. de; NORMANDO, C. A.; MENDES, S. M.; OLIVEIRA, I. R. de; RESENDE, A. V. de; PIMENTEL, M. A. G. O cultivo de milho em consórcio com braquiária afeta a qualidade dos grãos? In: REUNIÃO TÉCNICA SUL-BRASILEIRA DE PESQUISA DE MILHO E SORGO, 2., 2021, Pato Branco, PR. Resiliência do milho e sorgo frente aos estresses bióticos e abióticos: resumos. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2021. Evento online.
Misosul 2021.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 7. | | MATOS, M. V. R.; MAMEDES, A. de S.; SOUZA, E. G. de; SILVA, T. T. da; NORMANDO, C. A.; CRUZ, M. R. N. da; PIMENTEL, M. A. G. Correlação entre massa específica, total de avariados e incidência de fumonisinas em amostras de grãos de milho. In: CONFERÊNCIA BRASILEIRA DE PÓS-COLHEITA, 8., 2023, Rio Verde, GO. Anais... Londrina: Associação Brasileira e Pós-Colheita, 2023. p. 317-323.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 8. | | NORMANDO, C. A.; MATOS, M. V. R.; MAMEDES, A. de S.; SOUZA, E. G. de; CRUZ, M. R. N. da; PIMENTEL, M. A. G. Combinação de separação física por densidade uso de inseticidas protetores na qualidade do milho durante a armazenagem. In: CONFERÊNCIA BRASILEIRA DE PÓS-COLHEITA, 8., 2023, Rio Verde, GO. Anais... Londrina: Associação Brasileira e Pós-Colheita, 2023. p. 242-248.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 9. | | NORMANDO, C. A.; SOUZA, E. G. de; MENDES, S. M.; OLIVEIRA, I. R. de; RESENDE, A. V. de; PIMENTEL, M. A. G. Associação entre beneficiamento e tratamento com inseticidas tem impacto na qualidade dos grãos de milho durante a armazenagem? In: CONGRESSO NACIONAL DE MILHO E SORGO, 33., 2022, Sete Lagoas. Brasil: 200 anos de independência: sustentabilidade e desafios para a cadeia produtiva de grãos: resumos. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2022. Evento online.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 10. | | PIMENTEL, M. A. G.; ARAÚJO, D. D. da S.; SIMEONE, M. L. F.; MATOS, M. V. R.; MAMEDES, A. de S.; SOUZA, E. G. de; SILVA, T. T. da; NORMANDO, C. A. Proposta de metodologia para estimativa de risco de contaminação por fumonisinas com base na composição física dos grãos de milho. Sete Lagoas: Embrapa Milho e Sorgo, 2023. 18 p. (Embrapa Milho e Sorgo. Boletim de Pesquisa e Desenvolvimento, 252).| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 10 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
15/09/2008 |
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Data da última atualização: |
15/09/2008 |
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Autoria: |
NOVO, M.; FERNÁNDEZ, R.; ALMODÓVAR, A.; DÍAZ-COSÍN, D. J. |
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Título: |
High genetic divergence among Hormogaster populations in Central Iberian Peninsula revealed by COI gene. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM. |
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Idioma: |
Inglês |
|
Conteúdo: |
The family Hormogastridae, consists of various genera and species of large and middle-sized
earthworms distributed in western Palearctic Region, almost exclusive to the countries and
islands of the western Mediterranean. In central Iberian Peninsula only one described species
within Hormogaster genus is found, Hormogaster elisae, an endemic species to this area. This
species can be very abundant in sandy and poor in organic matter soils, with strong erosion and
summer aridity. Climate change will presumably favour the extension of this kind of soils, where
Hormogaster genera and specifically H. elisae could be the only ones capable of thriving. Because
of that, their ecological importance could become crucial and hence, it is necessary to look into
their genetic variability in order to develop conservation and management programmes.
The objectives of this study were to determine the levels of genetic differentiation and estimate
the amount of gene flow occurring among populations of H. elisae as well as to study the possible
phylogenetic relationships among them. For this purpose, first subunit of cytochrome c oxidase
mitochondrial gene (COI) was sequenced for 82 individuals from 7 localities, resulting in 38
haplotypes exclusive to localities.
The analysis of molecular variance indicated a significant interpopulation genetic diversity and
the Mantel test revealed a pattern of isolation by distance. Values of genetic divergence were
surprisingly high (up to 20.20%) and the haplotype network (constructed using statistical
parsimony) showed a clear separation among populations. Phylogenetic analyses (Neighborjoining,
Maximum parsimony, Maximum-likelihood and Bayesian) also showed an agreement
between the generated clades and the geographic location, supported by high bootstrap and
posterior probability values.
The results suggest the occurrence of more than one Hormogaster species in central Iberian
Peninsula. Therefore, we are currently studying the problem in a wider spatial scale and with
different approaches to take a final decision about the limit of those species MenosThe family Hormogastridae, consists of various genera and species of large and middle-sized
earthworms distributed in western Palearctic Region, almost exclusive to the countries and
islands of the western Mediterranean. In central Iberian Peninsula only one described species
within Hormogaster genus is found, Hormogaster elisae, an endemic species to this area. This
species can be very abundant in sandy and poor in organic matter soils, with strong erosion and
summer aridity. Climate change will presumably favour the extension of this kind of soils, where
Hormogaster genera and specifically H. elisae could be the only ones capable of thriving. Because
of that, their ecological importance could become crucial and hence, it is necessary to look into
their genetic variability in order to develop conservation and management programmes.
The objectives of this study were to determine the levels of genetic differentiation and estimate
the amount of gene flow occurring among populations of H. elisae as well as to study the possible
phylogenetic relationships among them. For this purpose, first subunit of cytochrome c oxidase
mitochondrial gene (COI) was sequenced for 82 individuals from 7 localities, resulting in 38
haplotypes exclusive to localities.
The analysis of molecular variance indicated a significant interpopulation genetic diversity and
the Mantel test revealed a pattern of isolation by distance. Values of genetic divergence were
surprisingly high (up to 20.20%) and the h... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02840naa a2200157 a 4500
001 1314799
005 2008-09-15
008 2008 bl uuuu u00u1 u #d
100 1 $aNOVO, M.
245 $aHigh genetic divergence among Hormogaster populations in Central Iberian Peninsula revealed by COI gene.
260 $c2008
520 $aThe family Hormogastridae, consists of various genera and species of large and middle-sized earthworms distributed in western Palearctic Region, almost exclusive to the countries and islands of the western Mediterranean. In central Iberian Peninsula only one described species within Hormogaster genus is found, Hormogaster elisae, an endemic species to this area. This species can be very abundant in sandy and poor in organic matter soils, with strong erosion and summer aridity. Climate change will presumably favour the extension of this kind of soils, where Hormogaster genera and specifically H. elisae could be the only ones capable of thriving. Because of that, their ecological importance could become crucial and hence, it is necessary to look into their genetic variability in order to develop conservation and management programmes. The objectives of this study were to determine the levels of genetic differentiation and estimate the amount of gene flow occurring among populations of H. elisae as well as to study the possible phylogenetic relationships among them. For this purpose, first subunit of cytochrome c oxidase mitochondrial gene (COI) was sequenced for 82 individuals from 7 localities, resulting in 38 haplotypes exclusive to localities. The analysis of molecular variance indicated a significant interpopulation genetic diversity and the Mantel test revealed a pattern of isolation by distance. Values of genetic divergence were surprisingly high (up to 20.20%) and the haplotype network (constructed using statistical parsimony) showed a clear separation among populations. Phylogenetic analyses (Neighborjoining, Maximum parsimony, Maximum-likelihood and Bayesian) also showed an agreement between the generated clades and the geographic location, supported by high bootstrap and posterior probability values. The results suggest the occurrence of more than one Hormogaster species in central Iberian Peninsula. Therefore, we are currently studying the problem in a wider spatial scale and with different approaches to take a final decision about the limit of those species
700 1 $aFERNÁNDEZ, R.
700 1 $aALMODÓVAR, A.
700 1 $aDÍAZ-COSÍN, D. J.
773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
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