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Flight of Rhyzopertha dominica (Coleoptera: Bostrichidae)-a Spatio-Temporal Analysis With Pheromone Trapping and Population Genetics.
Ridley, A W; Hereward, J P; Daglish, G J; Raghu, S; McCulloch, G A; Walter, G H.
Afiliação
  • Ridley AW; Department of Agriculture and Fisheries, Agri-Science Queensland, EcoSciences Precinct, GPO Box 267, Brisbane, Qld 4001, Australia (Andrew.Ridley@daf.qld.gov.au; greg.daglish@daf.qld.gov.au) Andrew.Ridley@daf.qld.gov.au.
  • Hereward JP; Cooperative Research Centre for National Plant Biosecurity, LPO Box 5012, Bruce, ACT 2617, Australia (Raghu.Sathyamurthy@csiro.au).
  • Daglish GJ; School of Biological Sciences, The University of Queensland, Brisbane, Qld 4072, Australia (j.hereward@uq.edu.au; g.mcculloch1@uq.edu.au; g.walter@uq.edu.au).
  • Raghu S; Department of Agriculture and Fisheries, Agri-Science Queensland, EcoSciences Precinct, GPO Box 267, Brisbane, Qld 4001, Australia (Andrew.Ridley@daf.qld.gov.au; greg.daglish@daf.qld.gov.au).
  • McCulloch GA; Cooperative Research Centre for National Plant Biosecurity, LPO Box 5012, Bruce, ACT 2617, Australia (Raghu.Sathyamurthy@csiro.au).
  • Walter GH; Cooperative Research Centre for National Plant Biosecurity, LPO Box 5012, Bruce, ACT 2617, Australia (Raghu.Sathyamurthy@csiro.au).
J Econ Entomol ; 109(6): 2561-2571, 2016 12.
Article em En | MEDLINE | ID: mdl-27986943
The flight of the lesser grain borer, Rhyzopertha dominica (F.), near grain storages and at distances from them, was investigated to assess the potential of these beetles to infest grain and spread insecticide resistance genes. We caught R. dominica in pheromone-baited flight traps (and blank controls) set at storages, in fields away from storages, and in native vegetation across a 12-mo period. A functional set of highly polymorphic microsatellite markers was developed, enabling population genetic analyses on the trapped beetles. Pheromone-baited traps caught just as many R. dominica adults at least 1 km from grain storages as were caught adjacent to grain storages. Samples of beetles caught were genetically homogeneous across the study area (over 7,000 km2) in South Queensland, Australia. However, a change in genetic structure was detected at one bulk storage site. Subsequent analysis detected a heterozygous excess, which indicated a population bottleneck. Only a few beetles were caught during the winter months of June and July. To assess the mating status and potential fecundity of dispersing R. dominica females, we captured beetles as they left grain storages and quantified offspring production and life span in the laboratory. Nearly all (95%) of these dispersing females had mated and these produced an average of 242 offspring. We demonstrated that R. dominica populations in the study area display a high degree of connectivity and this is a result of the active dispersal of mated individuals of high potential fecundity.
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Comportamento Sexual Animal / Variação Genética / Besouros / Distribuição Animal Limite: Animals País/Região como assunto: Caribe ingles / Dominica / Oceania Idioma: En Revista: J Econ Entomol Ano de publicação: 2016 Tipo de documento: Article País de publicação: Reino Unido
Buscar no Google
Adicionar na Minha BVS
Imprimir
XML
PubMed Links

Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Comportamento Sexual Animal / Variação Genética / Besouros / Distribuição Animal Limite: Animals País/Região como assunto: Caribe ingles / Dominica / Oceania Idioma: En Revista: J Econ Entomol Ano de publicação: 2016 Tipo de documento: Article País de publicação: Reino Unido