Results 151 to 160 of about 637 (176)
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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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Thelytoky in Cape honeybees (Apis mellifera capensis) is controlled by a single recessive locus [PDF]
Apidologie, 2017 Worker reproduction in Apis mellifera typically leads to haploid males produced via arrhenotokous parthenogenesis. An exception are laying workers of the South African Cape honeybee Apis mellifera capensis. Due to an abnormal spindle rotation during meiosis A. m. capensis workers are able to produce female progeny via thelytokous parthenogenesis.
Denise Aumer +2 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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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. M. 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. M. Field +6 more
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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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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
Vavre, F., Girin, C., Bouletreau, M.
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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
Vavre, F., Girin, C., Bouletreau, M.
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Phytoparasitica, 2000
Galeopsomyia fausta (Hymenoptera: Eulophidae) is a thelytokous parasitic wasp attacking the citrus leafminer,Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae). To improve the performance of that wasp as a natural enemy, the nature of its uniparental reproduction was studied.
Y. Argov +3 more
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Galeopsomyia fausta (Hymenoptera: Eulophidae) is a thelytokous parasitic wasp attacking the citrus leafminer,Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae). To improve the performance of that wasp as a natural enemy, the nature of its uniparental reproduction was studied.
Y. Argov +3 more
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Chromosoma, 1976
Two mosaic sibling embryos of the Australian plague locust, Chortoicetes terminifera are reported with haploid and diploid cell lines in widely differing proportions. One small chromosome pair involved in the two cases has alternative morphology and a B-chromosome is present in one.
G C, Webb, L, Komarowski
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Two mosaic sibling embryos of the Australian plague locust, Chortoicetes terminifera are reported with haploid and diploid cell lines in widely differing proportions. One small chromosome pair involved in the two cases has alternative morphology and a B-chromosome is present in one.
G C, Webb, L, Komarowski
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Chromosoma, 1972
Parthenogenesis is reported in three soft scales with 2n=16. In the unfertilized eggs of all three, oogenesis is normal and diploidy is restored by the fusion of the division products of the haploid female pronucleus. In Lecanium putmani Phillips 12 of 13 uninseminated females collected in the wild produced only males.
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Parthenogenesis is reported in three soft scales with 2n=16. In the unfertilized eggs of all three, oogenesis is normal and diploidy is restored by the fusion of the division products of the haploid female pronucleus. In Lecanium putmani Phillips 12 of 13 uninseminated females collected in the wild produced only males.
openaire +1 more source