Results 41 to 50 of about 464 (138)

Transcriptome and proteome analysis of ovaries of arrhenotokous and thelytokous Venturia canescens [PDF]

, 2009
Under arrhenotoky, unfertilized haploid eggs develop as males but under thelytoky they develop into diploid females after they have undergone diploidy restoration. In the parasitoid wasp Venturia canescens both reproductive modes occur.
W. H. C. Huibers, L. W. Beukeboom, H. Witsenboer, Huibers, W.H.C., Mateo Leach, I., A. Hesseling, L. van de Zande, van de Zande, L., Beukeboom, L. W., Hesseling, A., Witsenboer, H., van de Zande, L.; id_orcid, I. Mateo Leach   +12 more
core   +1 more source

Biology of \u3ci\u3eDiastrophus Nebulosus\u3c/i\u3e (Hymenoptera: Cynipidae) and Its Parasitoid/Inquiline Complex in Galls on \u3ci\u3eRubus Flagellaris\u3c/i\u3e (Rosaceae) [PDF]

, 2018
Rubus flagellaris patches occasionally harbor colonies of compound stem- galls initiated by the cynipid, Diastrophus nebulosus. These isolated colonies host a parasitoid/inquiline complex made up of five principal and three incidental chalcidoid species ...
Gordinier, H. C, H. C Gordinier
core   +1 more source

Direct tests of haplodiploid inheritance in Thrips tabaci (Thysanoptera: Thripidae) using parent-offspring SSR-GBS

European Journal of Entomology
Haplodiploidy is a sex determination system in which males are haploid and females are diploid. In the typical haplodiploid system, females inherit half of their genome from each parent, whereas males inherit a haploid genome exclusively from their ...
Tatsumi KUDO, Po-Wei HSU, Shigeto DOBATA
doaj   +1 more source

A Non‐Destructive Method for Sex Identification in a Tubuliferan Thrips

Entomologia Experimentalis et Applicata, Volume 174, Issue 9, Page 1135-1140, September 2026.
Accurate sex identification of the biological control agent Pseudophilothrips ichini Hood (Thysanoptera: Phlaeothripidae) is a useful tool for colony management and experimental applications in biological control. Destructive methods of sex identification limit specimen usage, prompting the need for a sex identification method for live thrips.
Brianna Foster, F. Allen Dray, Dale Halbritter   +2 more
wiley   +1 more source

Cytological Evidence of Pseudo-arrhenotoky in Two Phytoseiid Mites, Phytoseiulus persimilis Athias-Henriot and Amblyseius womersleyi Schicha.

Journal of the Acarological Society of Japan, 1999
Pseudo-arrhenotoky was investigated by chromosome observation in Phytoseiulus persimilis and Amblyseius womersleyi, both of which have the basic number of chromosomes. To confirm male diploidy at the early stage of embryogenesis, eggs were supplied for chromosome observation immediately after they were deposited.
Toyoshima, Shingo, Amano, Hiroshi
openaire   +2 more sources

Impact of Host and Food Availability on Life‐History Traits in Six Egg Parasitoid Species of the Genus Trichogramma

Entomologia Experimentalis et Applicata, Volume 174, Issue 8, Page 887-895, August 2026.
In this study we measured the impact of access to sugar and hosts on the longevity and fecundity of six Trichogramma species: T. cacoeciae, T. chilonis, T. minutum, T. leptoparameron, T. pintoi and T. sibericum. The impact of food differed among species, but there was a general tendency of increased life expectancy and potential fecundity with sugar ...
Véronique Martel, Marlène Goubault, Guy Boivin   +2 more
wiley   +1 more source

Spider mite genotypes with higher growth rate suffer more from competition but exert stronger reproductive interference

Journal of Animal Ecology, Volume 95, Issue 6, Page 1002-1014, June 2026.
Genetic correlations have strong implications for species coexistence and their evolution. Studies addressing this issue generally tackle traits associated with competition for food and those underlying reproductive interference separately, whereas it is clear that the interaction among these is key to understand the ecology and evolution of closely ...
Miguel A. Cruz, Flore Zélé, Raquel Gaspar, Ricardo Santos, Leonor R. Rodrigues, Vitor C. Sousa, Sara Magalhães   +6 more
wiley   +1 more source

Systematic and Evolutionary Implications of Parthenogenesis in the Hymenoptera [PDF]

, 1971
Two types of parthenogenesis, arrhenotoky and thelytoky, exist in the Hymenoptera. Arrhenotoky, the development of males from unfertilized eggs, is present in all wasps and bees.
Daly, Howell V., Slobodchikoff, C. N.
core  

Potential of the Predatory Mites Gamasellodes lavafesii (Mesostigmata: Ascidae) and Cosmolaelaps mediocuspis (Mesostigmata: Laelapidae) on Different Soil Pests/Parasites and Alternative Prey for Large‐Scale Rearing

Journal of Applied Entomology, Volume 150, Issue 5, Page 562-572, June 2026.
ABSTRACT Many species of Mesostigmata soil mites have potential as biological control agents of pests/parasites. This study evaluated the predation potential of two of these species, Gamasellodes lavafesii (Ascidae) and Cosmolaelaps mediocuspis (Laelapidae).
A. R. A. Barros, J. P. I. Martin, G. J. Moraes, M. M. Inomoto, R. C. Castilho   +4 more
wiley   +1 more source

Effects of Exposure to High Temperature onFrankliniella occidentalis(Thysanoptera: Thripidae), under Arrhenotoky and Sexual Reproduction Conditions

Florida Entomologist, 2014
Temperature plays a critical role in the population dynamics of insects. This study was designed to estimate the effect of exposure of Frankliniella occidentalis (Pergande) in the parental generation to 41 °C for various durations (2, 6, 12, 24, and 36 h) on their reproduction and on the first generation progeny. The data indicated that, under both the
Jian Chao Wang, Bin Zhang, Hong Gang Li, Jun Ping Wang, Chang Ying Zheng   +4 more
openaire   +1 more source