Genetic Population Structure of Migratory Moths: the Fall Armyworm (Lepidoptera: Noctuidae)

Pashley, Dorothy P.; Johnson, S. J.; Sparks, Alton N.

doi:10.1093/aesa/78.6.756

Cited by 164 publications

(130 citation statements)

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“…It can be seen that, when considered on a broad geographic scale, T. tetraophthalmus is one of the more geographically structured insect species. In fact, Snyder and Linton (1984) cited in Ayala (1982) cited in Ayala (1982) cited in Ayala (1982) cited in Ayala (1982) cited in Ayala (1982) Koehn (1978) Pashley et aL (1985) cited in Pashley et aL (1985) cited in Pashley et aL (1985) cited in Pashley et aL (1985) cited in Phillips and Lanier (1985) this study Hemiptera Limnoporous canalicu!atus 0082 Zera (1981) Hymenoptera Rhytidoponera confusa R. chalybaea 0294 0380 Ward (1980) Ward (1980 measures of geographic differentiation taken on a small spatial scale within parts of the range of milkweed beetles are comparable with the degree of differentiation found across the entire range of many other insect species.…”

Section: Resultsmentioning

confidence: 99%

Hierarchical population structure analysis of the milkweed beetle, Tetraopes tetraophthalmus (Forster)

McCauley

Eanes

1987

Heredity

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The population structure of the milkweed beetle Tetraopes tetraophthalmus (Forster) is tied intimately to the biology of its one host plant, Asciepias syriaca. The patchy distribution of the host plant and the limited dispersal of the beetle combine to organise the herbivore into numerous very localised populations. An analysis of hierarchical patterns of spatial variation in allozyme frequencies by means of Wright's F-statistics reveals that in some parts of the beetle's range this population structure can result in moderate genetic differentiation (F =0.03-0.06) among beetle populations inhabiting milkweed patches separated by only a few kilometres. Substantial differentiation occurs across the range of the species (F =0.154). A review of similar studies shows the values of F calculated for T. tetraophthalmus to be among the highest found for a flying insect. It is argued that the local differentiation results, in part, from a reduction in effective population sizes associated with the ephemeral nature of milkweed patches and that this population structure is favourable for the operation of Wright's Shifting Balance mode of evolution.

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Section: Resultsmentioning

confidence: 99%

Hierarchical population structure analysis of the milkweed beetle, Tetraopes tetraophthalmus (Forster)

McCauley

Eanes

1987

Heredity

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“…Challenges in these research areas are to understand host-plant adaptation, multi-scale geographic genetic differentiations, and population ecology of sympatric speciation. Basic geographic differentiations and host-range association studies have been performed using allozyme markers (Pashley et al, 1985;Pashley, 1986), random amplified polymorphic DNA and amplified fragment length polymorphism markers (Martinelli et al, 2006(Martinelli et al, , 2007, and mitochondrial cytochrome oxidase subunit I genes (Nagoshi et al, 2006;Nagoshi, 2010). However, the use of highly variable and sensitive molecular markers as microsatellites has not yet been reported in this species in molecular ecology studies.…”

Section: Introductionmentioning

confidence: 99%

Methodology Microsatellite markers for genetic studies of the fall armyworm, Spodoptera frugiperda

Pavinato¹,

Martinelli²,

Lima³

et al. 2013

Genet. Mol. Res.

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ABSTRACT. We developed six microsatellite markers for the fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae). The SSR loci were isolated with enriched genomic library protocol by using native individuals as a genome source for markers. These loci were characterized in 48 individuals and they were tested for the ability to identify candidate migrants exchanged among the samples. The number of alleles per locus ranged from 5 to 18 (10.8 on average). The observed polymorphism information content ranged from 0.172 to 0.891. Beside the lower efficiency to obtain SSR loci, the six microsatellites were polymorphic and sufficiently discriminant for the genetic studies of S. frugiperda; it allowed us to identify migrants with both NJ clustering and the Bayesian methods. These markers will be useful for molecular SSRs for genetic studies of fall armyworm ecology studies of this highly polyphagous species in order to understand the processes that determine genetic differentiation in the complex agro-ecosystems that it infests and improve local integrated pest management practices.

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“…Variáveis biológicas da LCM de diferentes localidades e plantas hospedeiras apresentam diferenças signifi cativas (Giolo et al 2002). Nas culturas do milho e do arroz irrigado no Rio Grande do Sul, Busato et al (2002) observaram a presença de duas raças ou biótipos de S. frugiperda, o "biótipo do milho" e o "biótipo do arroz", morfologicamente iguais e fi siologicamente diferentes (Pashley et al 1985(Pashley et al , 1987. Aparentemente, o biótipo do milho predomina nas áreas cultivadas e nas áreas em pousio predomina o biótipo do arroz .…”

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Sobrevivência e desenvolvimento larval de Spodoptera frugiperda (J E Smith) (Lepidoptera: Noctuidae) em hospedeiros alternativos

Sá¹,

Fonseca²,

Boregas³

et al. 2009

Neotrop. entomol.

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Genetic Population Structure of Migratory Moths: the Fall Armyworm (Lepidoptera: Noctuidae)

Cited by 164 publications

References 0 publications

Hierarchical population structure analysis of the milkweed beetle, Tetraopes tetraophthalmus (Forster)

Hierarchical population structure analysis of the milkweed beetle, Tetraopes tetraophthalmus (Forster)

Methodology Microsatellite markers for genetic studies of the fall armyworm, Spodoptera frugiperda

Sobrevivência e desenvolvimento larval de Spodoptera frugiperda (J E Smith) (Lepidoptera: Noctuidae) em hospedeiros alternativos

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