Results 51 to 60 of about 823 (127)

Gonads and gametogenesis in Chaetodactylus osmiae (Acariformes: Astigmata: Chaetodactylidae) a parasite of solitary bees [PDF]

, 2018
International audienceChaetodactylus osmiae (Dufour, 1839) is a mite parasitizing the solitary bee - Osmia rufa L.- used as a commercial pollinator. In this study we present the anatomy of female and male reproductive systems of this species as well as ...
Rożej-Pabijan, Elżbieta, Witaliński, Wojciech   +1 more
core   +3 more sources

Infection dynamics of endosymbionts that manipulate arthropod reproduction

Biological Reviews, Volume 100, Issue 5, Page 1787-1812, October 2025.
ABSTRACT A large proportion of arthropod species are infected with endosymbionts, some of which selfishly alter host reproduction. The currently known forms of parasitic reproductive manipulations are male‐killing, feminization, cytoplasmic incompatibility, parthenogenesis induction and distortion of sex allocation.
Franziska A. Brenninger, Roman Zug, Hanna Kokko   +2 more
wiley   +1 more source

Parthenogenesis under influence of microbes in Thysanoptera [PDF]

, 2008
Der Reproduktionsmechanismus der meisten Thysanopteren beruht auf Haplodiploidie (EVANS et al. 2004). Die Mehrzahl der Arten vermehrt sich durch Arrhenotokie. Bei einigen Arten sind Männchen jedoch sehr selten, sie vermehren sich durch Thelytokie.
Kranz, Renate, Kumm, Sandra, Moritz, Gerald   +2 more
core  

Sex ratio distortion in the Nesolynx thymus (Hymenoptera: Eulophidae), an ecto-pupal parasitoid of uzifly, Exorista sorbillans (Diptera: Tachinidae) [PDF]

, 2014
The reproductive alterations induced by maternally inherited alpha-proteo-bacteria Wolbachia to their hosts is a well-documented phenomenon. In Nesolynx thymus, a gregarious hymenopterous ecto-pupal parasitoid of the uzifly, Exorista sorbillans ...
Huchesh, H.C., Prakash, B.M., Prathima, A., Puttaraju, H.P., Ravikumar, H., Sampathkumar, S.   +5 more
core   +1 more source

Small‐scale dispersal and gene flow of the agricultural pest two‐spotted spider mite in apple orchards: Implication from landscape ecological and population genetic analyses

Ecological Research, Volume 39, Issue 3, Page 341-352, May 2024.
This study suggests the small‐scale dispersal of a serious agricultural pest, two‐spotted spider mite among orchards and their adjacent landscapes through landscape‐ecological and population genetic analyses. The discovery that two‐spotted spider mite occurrence is influenced by landscape composition within approximately a 200 m radius surrounding ...
Yasuyuki Komagata, Takaho Oe, Takayuki Sekine, Yuta Kimura, Shun K. Hirota, Hiroya Taguchi, Yoshihisa Suyama   +6 more
wiley   +1 more source

Inbreeding in the coffee berry borer, Hypothenemus hampei (Coleoptera : Scolytidae) estimated from endosulfan resistance phenotype frequencies [PDF]

, 1996
An estimate of the inbreeding coefficient, Fis, of the coffee berry borer, #Hypothenemus hampei$ Ferrari, was calculated from genotype frequencies of endosulfan resistance in beetles collected from berries in 41 fields on the East Coast of New Caledonia.
Borsa, Philippe, Brun, Luc-Olivier, Gingerich, P., Suckling, D.M.   +3 more
core   +1 more source

Evolution of ageing, costs of reproduction and the fecundity-longevity trade-off in eusocial insects. [PDF]

, 2017
Eusocial insects provide special opportunities to elucidate the evolution of ageing as queens have apparently evaded costs of reproduction and reversed the fecundity-longevity trade-off generally observed in non-social organisms.
Blacher, P., Bourke, AFG, Huggins, T.J.
core   +1 more source

Reproductive efficiency of the bethylid wasp Cephalonomia tarsalis: the influences of spatial structure and host density [PDF]

, 2016
The parasitoid wasp Cephalonomia tarsalis (Ashmead) (Hymenoptera: Bethylidae) is commonly present in stored product facilities. While beneficial, it does not provide a high 24 degree of biological pest control against its host, the saw-toothed beetle ...
Eliopoulos, Panagliotis A., Givropoulou, Elftheria, Hardy, Ian C.W., Kapranas, Apostolos   +3 more
core   +2 more sources

Meiosis genes in and the role of parthenogenesis in genome evolution [PDF]

, 2009
Background Thousands of parthenogenetic animal species have been described and cytogenetic manifestations of this reproductive mode are well known. However, little is understood about the molecular determinants of parthenogenesis.
Andrew M Schurko, John M Logsdon, Brian D Eads, GN Stone, M Lynch, J Mallet, M Morgan-Richards, MF Dybdahl, C Wallace, PM Ferree, MG Riparbelli, E Suomalainen, TA Gorr, N Tatarazako, PD Hebert, F Zaffagnini, H Lumer, F Zaffagnini, AR Omilian, JK Colbourne, S Paland, M Lynch, PE Cohen, K Nasmyth, JL Gerton, S Hauf, M Petronczki, Y Watanabe, J Brennecke, AA Aravin, C Klattenhoff, T Kishimoto, AL Marston, JZ Morris, M Fu, Y Geng, S Ortega, M Malumbres, M Kasten, O Cohen-Fix, K Nasmyth, V Guacci, SP Bell, SL Forsburg, D Maiorano, HL Blanton, M Lutzmann, JW Barnes, AL Gotter, RC Chan, AL Gotter, JA Cobb, L Wu, RM Brosh Jr, ID Hickson, JL Plank, B Rockmill, PB Moens, DN Cox, K Nonomura, MA Ramesh, S Gruber, TS Kitajima, SE Thomas, L Strom, E Unal, I Sumara, A Losada, VL Katis, TS Kitajima, DQ Ding, G De Piccoli, J Torres-Rosell, A Losada, T Hirano, N Cobbe, E Revenkova, N Pezzi, A Bergerat, S Keeney, SB Malik, DK Bishop, A Shinohara, JY Masson, A Shinohara, DK Bishop, M Tarsounas, GV Petukhova, RJ Pezza, G Petukhova, M Shinohara, N Sarai, J Wesoly, GV Petukhova, C Zierhut, NY Stassen, Z Lin, J Jiricny, T Snowden, S Neyton, Z Lin, KM Culligan, TF Wang, M Raschle, GM Li, SM Baker, SM Lipkin, S Santucci-Darmanin, E Cannavo, PC Chen, P Pasierbek, S Yokobayashi, R Chenna, DR Maddison, F Ronquist, S Whelan   +115 more
core   +1 more source

FREQUENCY AND VIABILITY OF DIPLOID AND HAPLOID MALES OFFSPRINGS OF MATED FEMALES OF SOLITARY ENDOPARASITOID (DIADROMUS PULCHELLUS ) ( ICHNEUMONIDAE) . [PDF]

, 2001
Sex determination in the order Hymenoptera is based on arrhenotoky, hymenopteran males are usually haploid and females diploid. Males of the Ichneumonidae Diadromus pulchellus , solitary endoparasitoid of A.
Kalmès, Robert, Rojas-Rousse, Danielle
core   +1 more source