F. Chardonnet's research while affiliated with Université Paris-Sud 11 and other places
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Publications (3)
The population genetic structure of crop pest populations gives information about their spatial ecology, which helps in designing management strategies. In this paper, we investigated the genetic structure of the Mediterranean Corn Borer (MCB), Sesamia nonagrioides Lefèbvre (Lepidoptera: Noctuidae), one of the most important maize pests in the Medi...
The extent of damage to crop plants from pest insects depends on
the foraging behaviour of the insect’s feeding stage. Little is known,
however, about the genetic and molecular bases of foraging
behaviour in phytophagous pest insects. The
foraging
gene (
for
), a
candidate gene encoding a PKG-I, has an evolutionarily conserved
function in feeding s...
Citations
... Sesamia nonagrioides is the major pest in maize-growing areas of the Mediterranean Basin, including Portugal, Spain, Morocco, France, Italy, Greece, Turkey, Middle East, and many countries in Africa (Eizaguirre and Fantinou 2012). In European countries, S. nonagrioides can be found up to 46° N latitude while its distribution in southern Mediterranean countries, such as Morocco, Iran, Syria, and Israel, extended to 31 o N (Eizaguirre and Fantinou 2012;Naino Jika et al. 2020). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/278478265044992-1443405800223_Q64/Stephane-Dupas-3.jpg)
... The two alternative behaviours are maintained by selection; patchy food and high population densities advantage rovers, while evenly distributed food and low population densities advantage sitters . The role of the for gene as a single major gene influencing foraging behaviours has been maintained during evolution as it has been characterized in many animal taxa as diverse as nematodes (Hao et al., 2011;Hong et al., 2008), insects (Ben-Shahar et al., 2002;Chardonnet et al., 2014;Ingram et al., 2005;Keating et al., 2013;Lucas et al., 2010;Lucas & Sokolowski, 2009;Tobback et al., 2011;Wenseleers et al., 2008) and mammals (Struk et al., 2019 we describe allelic variations in sexual and asexual populations. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/429797823258624-1479483194039_Q64/Laure-Kaiser.jpg)
... Sesamia nonagrioides is a relevant candidate with which to study conservation of and polymorphism in the for gene in a lepidopteran, and its role in a behavioural trait directly associated with plant injuries. We conducted this study with an integrative experimental approach that included analyses of sequence conservation and polymorphism, allelic frequencies, and the link between foraging activity, observed in an adapted actimeter (Chardonnet et al., 2012), and pharmacological activation of PKG, allelic variation and gene expression. By linking phenotype to genotype, this study shows how the for gene can modulate a behavioural function linked to pest character in a lepidopteran species. ...
