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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
31/10/2011 |
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Data da última atualização: |
31/10/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RABELING, C.; GONZALES, O.; SCHULTZ, T. R.; BACCI JR. M.; GARCIA, M. V. B.; VERHAAGH, M.; ISHAK, H. D. |
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Afiliação: |
Christian Rabeling; Omar Gonzales; Ted R. Schultz; Maurício Bacci Jr.; MARCOS VINICIUS BASTOS GARCIA, CPAA; Manfred Verhaagh; Heather D. Ishak. |
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Título: |
Cryptic sexual populations account for genetic diversity and ecological success in a widely distributed, asexual fungus-growing ant. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Proceedings of the National Academy of Sciences, v. 108, n. 30, p. 12366-12371, Jul., 2011. |
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DOI: |
10.1073/pnas.1105467108 |
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Idioma: |
Inglês |
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Conteúdo: |
Sex and recombination are central processes in life generating genetic diversity. Organisms that rely on asexual propagation risk extinction due to the loss of genetic diversity and the inability to adapt to changing environmental conditions. The fungus-growing ant species Mycocepurus smithii was thought to be obligately asexual because only parthenogenetic populations have been collected from widely separated geographic localities. Nonetheless, M. smithii is ecologically successful, with the most extensive distribution and the highest population densities of any fungus-growing ant. Here we report that M. smithii actually consists of a mosaic of asexual and sexual populations that are nonrandomly distributed geographically. The sexual populations cluster along the Rio Amazonas and the Rio Negro and appear to be the source of independently evolved and widely distributed asexual lineages, or clones. Either apomixis or automixis with central fusion and low recombination rates is inferred to be the cytogenetic mechanism underlying parthenogenesis in M. smithii. Males appear to be entirely absent from asexual populations, but their existence in sexual populations is indicated by the presence of sperm in the reproductive tracts of queens. A phylogenetic analysis of the genus suggests that M. smithii is monophyletic, rendering a hybrid origin of asexuality unlikely. Instead, a mitochondrial phylogeny of sexual and asexual populations suggests multiple independent origins of asexual reproduction, and a divergence-dating analysis indicates that M. smithii evolved 0.5?1.65 million years ago. Understanding the evolutionary origin and maintenance of asexual reproduction in this species contributes to a general understanding of the adaptive significance of sex. MenosSex and recombination are central processes in life generating genetic diversity. Organisms that rely on asexual propagation risk extinction due to the loss of genetic diversity and the inability to adapt to changing environmental conditions. The fungus-growing ant species Mycocepurus smithii was thought to be obligately asexual because only parthenogenetic populations have been collected from widely separated geographic localities. Nonetheless, M. smithii is ecologically successful, with the most extensive distribution and the highest population densities of any fungus-growing ant. Here we report that M. smithii actually consists of a mosaic of asexual and sexual populations that are nonrandomly distributed geographically. The sexual populations cluster along the Rio Amazonas and the Rio Negro and appear to be the source of independently evolved and widely distributed asexual lineages, or clones. Either apomixis or automixis with central fusion and low recombination rates is inferred to be the cytogenetic mechanism underlying parthenogenesis in M. smithii. Males appear to be entirely absent from asexual populations, but their existence in sexual populations is indicated by the presence of sperm in the reproductive tracts of queens. A phylogenetic analysis of the genus suggests that M. smithii is monophyletic, rendering a hybrid origin of asexuality unlikely. Instead, a mitochondrial phylogeny of sexual and asexual populations suggests multiple independent origins of asexual... Mostrar Tudo |
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Palavras-Chave: |
Diversidade genética; Evolução. |
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Thesagro: |
Formiga. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02538naa a2200241 a 4500
001 1904495
005 2011-10-31
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1073/pnas.1105467108$2DOI
100 1 $aRABELING, C.
245 $aCryptic sexual populations account for genetic diversity and ecological success in a widely distributed, asexual fungus-growing ant.
260 $c2011
520 $aSex and recombination are central processes in life generating genetic diversity. Organisms that rely on asexual propagation risk extinction due to the loss of genetic diversity and the inability to adapt to changing environmental conditions. The fungus-growing ant species Mycocepurus smithii was thought to be obligately asexual because only parthenogenetic populations have been collected from widely separated geographic localities. Nonetheless, M. smithii is ecologically successful, with the most extensive distribution and the highest population densities of any fungus-growing ant. Here we report that M. smithii actually consists of a mosaic of asexual and sexual populations that are nonrandomly distributed geographically. The sexual populations cluster along the Rio Amazonas and the Rio Negro and appear to be the source of independently evolved and widely distributed asexual lineages, or clones. Either apomixis or automixis with central fusion and low recombination rates is inferred to be the cytogenetic mechanism underlying parthenogenesis in M. smithii. Males appear to be entirely absent from asexual populations, but their existence in sexual populations is indicated by the presence of sperm in the reproductive tracts of queens. A phylogenetic analysis of the genus suggests that M. smithii is monophyletic, rendering a hybrid origin of asexuality unlikely. Instead, a mitochondrial phylogeny of sexual and asexual populations suggests multiple independent origins of asexual reproduction, and a divergence-dating analysis indicates that M. smithii evolved 0.5?1.65 million years ago. Understanding the evolutionary origin and maintenance of asexual reproduction in this species contributes to a general understanding of the adaptive significance of sex.
650 $aFormiga
653 $aDiversidade genética
653 $aEvolução
700 1 $aGONZALES, O.
700 1 $aSCHULTZ, T. R.
700 1 $aBACCI JR. M.
700 1 $aGARCIA, M. V. B.
700 1 $aVERHAAGH, M.
700 1 $aISHAK, H. D.
773 $tProceedings of the National Academy of Sciences$gv. 108, n. 30, p. 12366-12371, Jul., 2011.
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Embrapa Amazônia Ocidental (CPAA) |
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| Registros recuperados : 269 | |
| 161. |  | ALMEIDA, R. F. C. de; GARCIA, M. V.; MATIAS, J.; MATOS, M. de F. C.; ANDREOTTI, R. Epidemiologia das riquetsia do grupo da febre maculosa brasileira no Estado de Mato Grosso do Sul. In: CONGRESSO BRASILEIRO DE PARASITOLOGIA VETERINÁRIA, 17., 2012, São Luis. Parasitologia veterinária, bem estar e produção animal: anais. São Luis: Colégio Brasileiro de Parasitologia Veterinária, 2012. p.264 PPR 253| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 162. | | RICO, A.; GEBER-CORRÊA, R.; CAMPOS, P. S.; GARCIA, M. V. B.; WAICHMAN, A. V.; BRINK, P. J. van den. Effect of Parathion-Methyl on Amazonian fish and freshwater invertebrates: a comparison of sensitivity with temperate data. Archives of Environmental Contamination and Toxicology, v. 58, n. 3, p. 765-771, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 163. | | ALMEIDA, R. F. C.; GARCIA, M. V.; CUNHA, R. C.; MATIAS, J; LABRUNA, M. B.; ANDREOTTI, R. The first report of Rickettsia spp. in Amblyomma nodosum in the State of Mato Grosso do Sul, Brazil. Ticks and Tick Borne Diseases, v. 4, n.1-2, p. 156-159,Feb. 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 164. | | PEREIRA, J. D. B.; SILVA, R. A. da; RONCHI-TELES, B.; GARCIA, M. V. B.; LEMOS, W. de P. Conhecimento sobre moscas-das-frutas no Estado de Rondônia. In: SILVA, R. A. da; LEMOS, W. de P.; ZUCCHI, R. A. (Ed.). Moscas-das-frutas na Amazônia brasileira: diversidade, hospedeiros e inimigos naturais. Macapá: Embrapa Amapá, 2011. p. 273-278.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental. |
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| 165. | | CSORDAS, B. G.; ALMEIDA, R. F. C. de; COMINETTI, M. C.; CUNHA, R. C.; GARCIA, M. V.; ANDREOTTI, R. Coatis (Nasua nasua) as reservoirs and amplifiers pathogens transmitted by ticks. In: INTERNATIONAL SYMPOSIUM ON TICK CONTROL AND TICK-BORNE DISEASES, 2013, Campo Grande, MS. [Proceedings..]. Campo Grande, MS: Embrapa Gado de Corte, 2013. (Embrapa Gado de Corte. Documentos, 202). Comissão organizadora: Renato Andreotti, Fernando Paiva, Wilson Werner Koller, Jacqueline Cavalcante Barros, Luiz Antonio Dias Leal, Jaqueline Matias.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 168. | | KANO, C.; GARCIA, T. B.; ARRUDA, M. R. de; GARCIA, M. V. B.; AZEVEDO, C. L. L.; MARTINS, G. C. Crescimento, produção de massa seca e acúmulo de nutrientes em porta-enxertos cítricos cultivados em Manaus, Amazonas. Manaus: Embrapa Amazônia Ocidental, 2018. 18 p. (Embrapa Amazônia Ocidental. Boletim de Pesquisa e Desenvolvimento, 26).| Tipo: Boletim de Pesquisa e Desenvolvimento |
| Biblioteca(s): Embrapa Amazônia Ocidental; Embrapa Territorial. |
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| 169. | | RABELING, C.; GONZALES, O.; SCHULTZ, T. R.; BACCI JR. M.; GARCIA, M. V. B.; VERHAAGH, M.; ISHAK, H. D. Cryptic sexual populations account for genetic diversity and ecological success in a widely distributed, asexual fungus-growing ant. Proceedings of the National Academy of Sciences, v. 108, n. 30, p. 12366-12371, Jul., 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 172. | | CSORDAS, B. G.; GARCIA, M. V.; CUNHA, R. C.; GIACHETTO, P. F.; BLECHA, I. M. Z.; ANDREOTTI, R. New insights from molecular characterization of the tick Rhipicephalus (Bophilus) microplus in Brazil. Revista Brasileira de Parasitologia Veterinária, Jaboticabal, v. 25, n. 3, p. 317-326, jul./set. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Gado de Corte. |
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| 174. | | CSORDAS, B. G.; CUNHA, R. C.; GARCIA, M. V.; ALMEIDA, R. F. C. de; COMINETTI, M. C.; ANDREOTTI, R. Mitochondrial and nuclear markers in populations of Brazilian Rhipicephalus (Boophilus) microplus. In: INTERNATIONAL SYMPOSIUM ON TICK CONTROL AND TICK-BORNE DISEASES, 2013, Campo Grande, MS. [Proceedings..]. Campo Grande, MS: Embrapa Gado de Corte, 2013. (Embrapa Gado de Corte. Documentos, 202). Comissão organizadora: Renato Andreotti, Fernando Paiva, Wilson Werner Koller, Jacqueline Cavalcante Barros, Luiz Antonio Dias Leal, Jaqueline Matias.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 175. | | RUY, R.; SATURNO, D. F.; CAIRES, E. F.; GARCIA, M. V.; HUNGRIA, M.; CEREZINI, P.; NOGUEIRA, M. A. Microbiological and biochemical attributes in low-fertiliy soil that received liming and p-fertilization. In: SIMPÓSIO DE MICROBIOLOGIA APLICADA, 6.; ENCONTRO NACIONAL DE MICROBIOLOGIA AGRÍCOLA, 8.; FÓRUM DOS COORDENADORES DOS PROGRAMAS DE PÓS-GRADUAÇÃO EM MICROBIOLOGIA DA ÁREA DE CIÊNCIAS AGRÁRIAS, 10., 2013, Rio Claro. [Resumos]. Rio Claro: UNESP, 2013.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 176. | | CSORDAS, B. G.; ALMEIDA, R. F. C. de; COMINETTI, M. C.; CUNHA, R. C.; GARCIA, M. V.; ANDREOTTI, R. Quatis (nasua nasua) como reservatórios e amplificadores de patógenos transmitidos por carrapatos. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE MEDICINA TROPICAL, 49., 2013, Campo Grande, MS. Anais... Campo Grande: SBMT, 2013.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 177. | | MARTIUS, C.; HOEFER, H.; BECK, L.; GARCIA, M. V. B.; LUIZAO, F.; FRANKLIN, E.; MORAIS, J. W. de; FORSTER, B. A quantitative model of the role of soil fauna in decomposition as affected by different forested cropping systems in central Amazonia. In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Programa and abstracts... Hamburg: University, 2000. p. 108.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 178. | | MARTIUS, C.; HOEFER, H.; BECK, L.; GARCIA, M. V. B.; LUIZÃO, F.; FRANKLIN, E.; MORAIS, J. W. de; FÖRSTER, B. A quantitative model of the role of soil fauna in decomposition as affected by different forested cropping systems in Central Amazonia. In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS. ACHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings... Hamburg: SHIFT: MADAM: WAVES, 2002. p. 204.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 180. | | CEREZINI, P.; SANTOS, M. B.; GARCIA, M. V. C.; PÍPOLO, A. E.; HUNGRIA, M.; NOGUEIRA, M. A. Respostas fisiológicas e teor de ureídos em genótipos de soja sob restrição hídrica. In: CONGRESSO BRASILEIRO MICROBIOLOGIA, 27., SIMPÓSIO IBEROAMERICANO SOBRE MICRO-ORGANISMOS FOTOSSINTETIZANTES, 2.; SIMPÓSIO BRASILEIRO DE MICOBACTÉRIAS, 15.; SIMPÓSIO DE FERMENTAÇÃO ALCOÓLICA, 2.; BRAZILIAN MICROBIOME WORKSHOP; BRAZILIAN MICROBIOME PROJECT MEETING, 1.; SIMPÓSIO DE COLEÇÕES DE CULTURA, 4.; MINI-SIMPÓSIO SOBRE NEW DELHI METALO-BETA-LACTAMASE-1 (NDM-1); 2013, NATAL. Anais... [São Paulo]: Sociedade Brasileira de Microbiologia, 2013.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 269 | |
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