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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
11/01/2006 |
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Data da última atualização: |
11/01/2006 |
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Autoria: |
SOSA-GÓMEZ, D. R.; SILVA, J. J. da; COSTA, F.; BINNECK, E.; MARIN, S. R. R.; NEPOMUCENO, A. L. |
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Título: |
Population structure of the Brazilian southern green stink bug, Nezara viridula. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Journal of Insect Science, 5, n. 23, p. 1-14, Oct. 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
The Southern Green Stink Bug, Nezara viridula (L.) (Heteroptera: Pentatomidae), is a cosmopolitan and economically important pest to several crops. Studies on N. viridula migration and population structure have been neglected. We studied geographically distinct Brazilian N. viridula populations to assess their variability and to determine gene flow among them. DNA from specimens collected on soybean fields were subjected to RAPD analysis to determine genetic similarity and population structure parameters. All N. viridula populations studied were genetically distinct from the others. The maximum similarity occurred between populations from Londrina and Sertanópolis (Parana State). The Cruz Alta population was the most divergent from the others. Despite the short distance between Cambé and Londrina (ca. 29 km), and the absence of geographic barriers, both populations clustered in different groups and the estimated gene flow index ( Nm ) among them was 2.02, indicating relatively restricted migration. The estimated overall index, Nm was 1.41 suggesting that N. viridula is a better flier than the Neotropical Brown stink bug, Euschistus heros (Nm =0.83). |
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Categoria do assunto: |
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Marc: |
LEADER 01686naa a2200181 a 4500
001 1468743
005 2006-01-11
008 2005 bl --- 0-- u #d
100 1 $aSOSA-GÓMEZ, D. R.
245 $aPopulation structure of the Brazilian southern green stink bug, Nezara viridula.
260 $c2005
520 $aThe Southern Green Stink Bug, Nezara viridula (L.) (Heteroptera: Pentatomidae), is a cosmopolitan and economically important pest to several crops. Studies on N. viridula migration and population structure have been neglected. We studied geographically distinct Brazilian N. viridula populations to assess their variability and to determine gene flow among them. DNA from specimens collected on soybean fields were subjected to RAPD analysis to determine genetic similarity and population structure parameters. All N. viridula populations studied were genetically distinct from the others. The maximum similarity occurred between populations from Londrina and Sertanópolis (Parana State). The Cruz Alta population was the most divergent from the others. Despite the short distance between Cambé and Londrina (ca. 29 km), and the absence of geographic barriers, both populations clustered in different groups and the estimated gene flow index ( Nm ) among them was 2.02, indicating relatively restricted migration. The estimated overall index, Nm was 1.41 suggesting that N. viridula is a better flier than the Neotropical Brown stink bug, Euschistus heros (Nm =0.83).
700 1 $aSILVA, J. J. da
700 1 $aCOSTA, F.
700 1 $aBINNECK, E.
700 1 $aMARIN, S. R. R.
700 1 $aNEPOMUCENO, A. L.
773 $tJournal of Insect Science, 5$gn. 23, p. 1-14, Oct. 2005.
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