Results 171 to 180 of about 1,525 (196)
Neotropical Entomology, 2016 We studied the occurrence of Wolbachia in the parasitoid Gonatopus bonaerensis Virla (Hymenoptera: Dryinidae). In order to verify the existence of natural infections in the parasitoid, a field survey was conducted. Identification of Wolbachia was performed on the basis of 16S rDNA, wsp_F1, and wsp_R1-sequences.
M. Espinosa, E. Virla, S. Cuozzo
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Insect Molecular Biology, 1999
Abstract Wolbachia are endosymbiotic bacteria responsible for thelytoky in several parasitoid hymenopteran genera. After finding these micro‐organisms in some populations of Diplolepis spinosissimae (Hymenoptera: Cynipidae) where they are responsible for ...
L. Field +6 more
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Abstract Wolbachia are endosymbiotic bacteria responsible for thelytoky in several parasitoid hymenopteran genera. After finding these micro‐organisms in some populations of Diplolepis spinosissimae (Hymenoptera: Cynipidae) where they are responsible for ...
L. Field +6 more
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Fertile diploid males in the ant Cataglyphis cursor: a potential cost of thelytoky? [PDF]
Behavioral Ecology and Sociobiology, 2013 Peer ...
C. Doums +5 more
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Thelytoky in Hymenoptera with Venturia canescens and Leptopilina clavipes as Case Studies
, 2009The insect order of Hymenoptera comprises around 200.000 described species of ants, bees, wasps and sawflies, many of which serve important ecological and economic functions. All Hymenoptera have a haplodiploid mode of reproduction. Males always develop from unfertilized eggs and are haploid.
I. M. Leach +6 more
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Screening for thelytoky in the parahaploid phytoseiid,Metaseiulus occidentalis (Nesbitt)
Experimental & Applied Acarology, 1986M. occidentalis is parahaploid, with unmated females unable to deposit eggs. We screened virgin females from 59 laboratory and field-collected colonies to determine whether thelytoky might occur. The results were negative, among 13 100 females reared in isolation.
Marjorie A. Hoy, Frances E. Cave
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OBLIGATE THELYTOKY IN ORIBATID MITES: NO EVIDENCE FORWOLBACHIAINDUCEMENT
The Canadian Entomologist, 1997AbstractThe wide distribution of obligate thelytoky in oribatid mites (Acari: Oribatida) raises the question of the mechanisms that allowed genetic diversity to be maintained or even promoted in these taxa. We tested whether or not endosymbiotic bacteriaWolbachiaare associated with thelytoky in eight species of oribatid mites (as it is for most ...
Marie-Jeanne Perrot-Minnot +1 more
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Experimental and Applied Acarology, 2006
Bacterial symbionts that manipulate the reproduction of their host to increase their own transmission are widespread. Most of these bacteria are Wolbachia, but recently a new bacterium, named Cardinium, was discovered that is capable of the same manipulations.
T. Groot, J. Breeuwer
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Bacterial symbionts that manipulate the reproduction of their host to increase their own transmission are widespread. Most of these bacteria are Wolbachia, but recently a new bacterium, named Cardinium, was discovered that is capable of the same manipulations.
T. Groot, J. Breeuwer
semanticscholar +5 more sources
Gonoid thelytoky in soft scale insects (Coccidae: Homoptera)
Chromosoma, 1979Cytological analysis of the thelytokous soft-scale insects Coccus hesperidum L. (2n=14) and Saissetia coffeae (Walker) (2n=16) revealed that while in both “species” the chromosomes did not pair during prophase I, meiosis consisted of two divisions, the chromosome number was reduced, and diploidy was restored by the fusion of the female pronucleus with ...
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The cytogenetics of thelytoky in a predominantly asexual parasitoid wasp with covert sex
Genome, 2003Asexual lineages in the parasitoid wasp Lysiphlebus fabarum (Hymenoptera: Braconidae: Aphidiinae) have previously been shown to have occasionally undergone sexual reproduction and recombination with males from related sexual populations. In the present study, the cytogenetic system of asexual females in this species is shown by 4',6-diamidino-2 ...
Robert, Belshaw, Donald L J, Quicke
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Insect Molecular Biology, 1999
Abstract Wolbachia are widespread bacteria which infect a number of species of insects and other arthropods. They manipulate the reproduction of their hosts at their own advantage. In Trichogramma species all Wolbachia
F. Vavre, C. Girin, M. Boulétreau
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Abstract Wolbachia are widespread bacteria which infect a number of species of insects and other arthropods. They manipulate the reproduction of their hosts at their own advantage. In Trichogramma species all Wolbachia
F. Vavre, C. Girin, M. Boulétreau
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