Results 131 to 140 of about 1,068 (158)

Weaving a new web: gregarious parasitism in Idris Förster (Hymenoptera: Scelionidae) attacking spider eggs. [PDF]

PLoS One
Rajmohana K, Debnath R, Sushama V, Sen S, Dinesh KP.   +4 more
europepmc   +1 more source

<i>Aprostocetus nitens</i> (Hymenoptera: Eulophidae), an Ectoparasitoid Proposed for Biological Control of the Destructive Erythrina Gall Wasp, <i>Quadrastichus erythrinae</i>, in Hawai'i. [PDF]

Insects
Ramadan MM, Yalemar JA, Rubinoff D, Wright MG, Bokonon-Ganta AH, Wang X.   +5 more
europepmc   +1 more source

Mating receptivity mediated by endosymbiont interactions in a haplodiploid thrips species. [PDF]

Proc Biol Sci
Tourani AH, Katlav A, Cook JM, Riegler M.   +3 more
europepmc   +1 more source

First report of recurrent parthenogenesis as an adaptive reproductive strategy in the endangered common smooth-hound shark Mustelus mustelus. [PDF]

Sci Rep
Esposito G, Meletiadis A, Sciuto S, Prearo M, Gagliardi F, Corrias I, Pira A, Dondo A, Briguglio P, Ghittino C, Dedola D, Bozzetta E, Acutis PL, Pastorino P, Colussi S.   +14 more
europepmc   +1 more source

Phylogenetic and population genetic analyses of Thrips tabaci Lindeman (Thysanoptera: Thripidae) on Allium host in India. [PDF]

PeerJ
Gawai T, Sadawarte S, Khandagale K, Raj A, Kulkarni A, Jaiswal DK, Ade AB, Gawande S.   +7 more
europepmc   +1 more source

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The distribution of thelytoky, arrhenotoky and androgenesis among castes in the eusocial Hymenoptera

Insectes Sociaux, 2018
Thelytokous parthenogenesis is the production of females from unfertilized eggs. In this review we categorize the known thelytokous eusocial Hymenopterans (mostly ants) by their modes of worker and queen reproduction. The resultant tabulation reveals that: (1) there are no species in which queens are thelytokous and workers are exclusively ...
F. Goudie, B. Oldroyd
semanticscholar   +3 more sources

The frequency of arrhenotoky in the normally thelytokous Apis mellifera capensis worker and the Clone reproductive parasite

Insectes Sociaux, 2015
In most honey bees, unfertilized eggs develop into haploid males via arrhenotokous parthenogenesis. The Cape honey bee (Apis mellifera capensis) is different. Although mated queens always produce females sexually, if workers lay unfertilized eggs the eggs develop into diploid females via thelytokous parthenogenesis. Thelytoky in A. m.
F. Goudie, M. Allsopp, M. Solignac, M. Beekman, B. Oldroyd   +4 more
semanticscholar   +3 more sources

A Fundamental Theorem of Natural Selection for Sex Linkage or Arrhenotoky

The American Naturalist, 1972
Equation (11) is a general equation for the change in geometric mean fitness at a male haploid or sex-linked locus when the selection intensity is small. The rate of change in fitness depends on the additive genetic variance in fitness, which is defined as the variance of the additive genotypic values when the additive model of gene action assumes no ...
D. Hartl
semanticscholar   +2 more sources

A cytological demonstration of arrhenotoky in three mites of the family Phytoseiidae

Chromosoma, 1964
Chromosome numbers of Phytoseiulus persimilis. Amblyseius fallacis, and Typhlodromus caudiglans were determined in lacto-propionic orcein squashes of developing eggs. Eggs of all species had either four or eight chromosomes: this indicates arrhenotoky (2 n = 8). All chromosomes are acrocentric; one of P. persimilis and one of A.
R. Hansell, Margaret M. Mollison, W. L. Putman   +2 more
semanticscholar   +3 more sources

Diploid arrhenotoky and automictic thelytoky in soft scale insects (Lecaniidae: Coccoidea: Homoptera)

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.
U. Nur
semanticscholar   +2 more sources