Reproductive compatibility of several East and West African<i>Cotesia sesamiae</i>(Hymenoptera: Braconidae) populations and their crosses and backcrosses using<i>Sesamia calamistis</i>(Lepidoptera: Noctuidae) as the host

Gounou, S.; Chabi-Olaye, A.; Poehling, Hans‐Michael; Schulthess, Fritz

doi:10.1080/09583150701875089

Cited by 10 publications

(14 citation statements)

References 25 publications

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“…1999). This could explain the differences in the performance of the hybrid between this study and the findings by Gounou et al. (2008).…”

Section: Discussioncontrasting

confidence: 72%

“…Gounou et al. (2008) evaluating the suitability of S. calamistis from southern Benin to Kenyan and Nigerian C. sesamiae populations, their hybrids and backcrosses found that crosses within populations tended to be reproductively more successful than crosses between populations.…”

Section: Discussionmentioning

confidence: 99%

“…However, the Kenyan populations belonged to different whereas the Cameroon populations belonged to the same mitochondrial clade (Sezonlin et al 2006; M. Sezolin, unpublished data). Gounou et al (2008) evaluating the suitability of S. calamistis from southern Benin to Kenyan and Nigerian C. sesamiae populations, their hybrids and backcrosses found that crosses within populations tended to be reproductively more successful than crosses between populations. By contrast in this study, highest parasitism, brood size and sex ratio, as well as a shorter development time were found for the hybrid with the two B. fusca populations as the host indicating that the reproductive potential of the hybrid was superior over that of the two parent populations.…”

Section: Discussionmentioning

confidence: 99%

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Suitability of cereal stemborers in Cameroon to Kenyan populations of the braconid larval parasitoid Cotesia sesamiae

Ndemah

Schulthess²,

Abang

et al. 2010

J Applied Entomology

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The noctuid Busseola fusca is the most destructive pest of maize in Cameroon. Various habitat management technologies have been developed and tested but none of them provides a self‐sustainable solution. The braconid Cotesia sesamiae, the most common larval endoparasitoid of the B. fusca in eastern Africa, is rare in West Africa and Cameroon. In Cameroon, it is mostly found on non‐crop borer species feeding on wild grasses. Thus, two Kenyan C. sesamiae populations and their hybrid were introduced into Cameroon. Suitability studies were carried out with two B. fusca populations, the noctuid Poeonoma serrata, which is commonly found feeding on Napier grass but not maize, and the noctuid Sesamiae cretica, which was recently accidentally introduced into Mauritania, where it attacks sorghum. The performance of the C. sesamiae was influenced by both host species/population and parasitoid population, although the B. fusca population had a minor effect. The reproductive potential of the hybrid was superior over that of its parent populations. The least suitable host was P. serrata, thus it was concluded that it would probably not play a major role in perennating C. sesamiae during the dry season. With S. cretica as host, parasitism was similar but brood size was lower than with either B. fusca population. Release strategies of C. sesamiae and its chances of establishment on B. fusca and S. cretica in the hot–humid forest zone and the cool highland of Cameroon and in Mauritania are discussed.

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“…1999). This could explain the differences in the performance of the hybrid between this study and the findings by Gounou et al. (2008).…”

Section: Discussioncontrasting

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Suitability of cereal stemborers in Cameroon to Kenyan populations of the braconid larval parasitoid Cotesia sesamiae

Ndemah

Schulthess²,

Abang

et al. 2010

J Applied Entomology

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“…Isolating barriers for L. distinguendus agree with barriers in other parasitoid systems. Prezygotic ecological isolation and sexual isolation seem to be common (Bredlau & Kester, ; Danci et al, ; Gounou, Chabi‐Olaye, Poehling, & Schulthess, ; Heimpel, Antolin, Franqui, & Strand, ; Joyce et al, ; Kaiser et al, ; Sundaralingam, Hower, & Kim, ), also in populations which must have been separated only very recently (Desneux et al, ). CI due to the endosymbionts Wolbachia or Cardinium has been reported in several parasitoid systems ( Wolbachia : e.g., Bordenstein et al, ; Bordenstein & Werren, ; Branca, Ru, Vavre, Silvain, & Dupas, ; Gebiola, White, et al, ; Cardinium : Gotoh, Noda, & Ito, ; Perlman, Kelly, & Hunter, ; Zhang, Zhao, & Hong, ; Gebiola, Kelly, et al, ; Gebiola, Giorgini, et al, ).…”

Section: Discussionmentioning

confidence: 99%

Reproductive isolation due to prezygotic isolation and postzygotic cytoplasmic incompatibility in parasitoid wasps

König

Zundel²,

Krimmer

et al. 2019

Ecology and Evolution

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The reproductive barriers that prevent gene flow between closely related species are a major topic in evolutionary research. Insect clades with parasitoid lifestyle are among the most species‐rich insects and new species are constantly described, indicating that speciation occurs frequently in this group. However, there are only very few studies on speciation in parasitoids. We studied reproductive barriers in two lineages of Lariophagus distinguendus (Chalcidoidea: Hymenoptera), a parasitoid wasp of pest beetle larvae that occur in human environments. One of the two lineages occurs in households preferably attacking larvae of the drugstore beetle Stegobium paniceum (“DB‐lineage”), the other in grain stores with larvae of the granary weevil Sitophilus granarius as main host (“GW‐lineage”). Between two populations of the DB‐lineage, we identified slight sexual isolation as intraspecific barrier. Between populations from both lineages, we found almost complete sexual isolation caused by female mate choice, and postzygotic isolation, which is partially caused by cytoplasmic incompatibility induced by so far undescribed endosymbionts which are not Wolbachia or Cardinium. Because separation between the two lineages is almost complete, they should be considered as separate species according to the biological species concept. This demonstrates that cryptic species within parasitoid Hymenoptera also occur in Central Europe in close contact to humans.

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“…Consequently, several molecular keys for the biological important Trichogramma species have been developed based on the length, nucleotide sequence and restriction fragment length polymorphism (PCR-RFLP) analysis of the ITS2 sequences (Chang et al 2001;Ciociola et al 2001;Dang et al 2005;Jeong et al 2010;Kumar et al 2009;Pinto et al 2002;Sappal et al 1995;Silva et al 1999;Stouthamer et al 1999b;Sumer et al 2009; Thomson et al 2003). In some cases, the ITS2 sequence cannot differentiate between species , which makes compatibility experiments based on the biological species concept (Mayr 1942) necessary (Gounou et al 2008;Pinto et al 1991Pinto et al , 1992Pinto andStouthamer 1994, Rosen 1986).…”

Section: Introductionmentioning

confidence: 99%

Iranian Trichogramma: ITS2 DNA characterization and natural Wolbachia infection

et al. 2011

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Egg parasitoids of the genus (Hymenoptera: Trichogrammatidae) are important natural enemies of many lepidopterous pests in agricultural and forest areas. Because the use of indigenous populations/species can significantly increase the biological control efficiency, the characterization of endemic populations and precise species identification is important. In this study, wasps were collected from parasitized eggs of several lepidopteran pests in Northern and Central Iran. Seven species were identified based on the morphology and the nucleotide sequence, size and restriction profile (PCR-RFLP) of the internal transcribed spacer 2 (ITS2) region of the rDNA of . Bezdenko, Marchal, Hartig, Westwood, Girault, Voegel, and Sorokina. This is the first report of in Iran. Additionally, natural populations were surveyed for the prevalence of . Two populations of were found to be infected by a single strain which was identified by using a multi-locus sequencing approach

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Reproductive compatibility of several East and West AfricanCotesia sesamiae(Hymenoptera: Braconidae) populations and their crosses and backcrosses usingSesamia calamistis(Lepidoptera: Noctuidae) as the host

Cited by 10 publications

References 25 publications

Suitability of cereal stemborers in Cameroon to Kenyan populations of the braconid larval parasitoid Cotesia sesamiae

Suitability of cereal stemborers in Cameroon to Kenyan populations of the braconid larval parasitoid Cotesia sesamiae

Reproductive isolation due to prezygotic isolation and postzygotic cytoplasmic incompatibility in parasitoid wasps

Iranian Trichogramma: ITS2 DNA characterization and natural Wolbachia infection

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