Agritrop
Home

Genetic and morphological variation in non-polyphenic southern African populations of the Desert locust

Chapuis Marie Pierre, Foucart Antoine, Plantamp Christophe, Blondin Laurence, Leménager Nicolas, Benoit Laure, Gay Pierre-Emmanuel, Bazelet Corinna S.. 2017. Genetic and morphological variation in non-polyphenic southern African populations of the Desert locust. African Entomology, 25 (1) : pp. 13-23.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
[img] Published version - Anglais
Access restricted to CIRAD agents
Use under authorization by the author or CIRAD.
CHAPUIS.pdf

Télécharger (1MB) | Request a copy

Quartile : Q4, Sujet : ENTOMOLOGY

Abstract : This study addresses geographic variation of body size and shape and of allele frequencies at 21 microsatellite loci in southern African populations of the desert locust, Schistocerca gregaria. These populations, which belong to the subspecies S. g. flaviventris, lack the capacity to change phase and to swarm relative to the northern populations of the nominate subspecies, S. g. gregaria. We reported overall genetic and morphological similarities among localities that cover most of the subspecies range. Of particular interest, the level of genetic diversity was moderately lower than in the swarming subspecies of the northern range. In addition, S. g. flaviventris populations were genetically homogeneous, such as observed in the northern range of the nominate subspecies. This result can be explained by north—southwest seasonal migration to follow rainfall. (Résumé d'auteur)

Mots-clés Agrovoc : Orthoptera, Sous-espèce, Dimension, Dynamique des populations, Microsatellite, Flux de gènes, Taxonomie, Génétique des populations, Variation génétique, Anatomie animale, Schistocerca gregaria

Mots-clés géographiques Agrovoc : Afrique du Sud

Mots-clés libres : Body size, Gene flow, Microsatellite, Orthoptera, Phase polyphenism, Population size, Subspecies

Classification Agris : H10 - Pests of plants

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

  • Chapuis Marie Pierre, CIRAD-BIOS-UMR CBGP (FRA)
  • Foucart Antoine, CIRAD-BIOS-UMR CBGP (FRA)
  • Plantamp Christophe, UCLB (FRA)
  • Blondin Laurence, CIRAD-BIOS-UPR Bioagresseurs : analyse et maîtrise du risque (FRA)
  • Leménager Nicolas, CIRAD-BIOS-UMR CBGP (FRA)
  • Benoit Laure, CIRAD-BIOS-UMR CBGP (FRA)
  • Gay Pierre-Emmanuel, CIRAD-BIOS-UMR CBGP (FRA) ORCID: 0000-0003-1328-6063
  • Bazelet Corinna S., Stellenbosch University (ZAF)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/583978/)

View Item (staff only) View Item (staff only)

[ Page générée et mise en cache le 2020-10-09 ]