Results 101 to 110 of about 1,525 (196)

Symbiosis in an overlooked microcosm: a systematic review of the bacterial flora of mites [PDF]

open access: yes, 2015
A dataset of bacterial diversity found in mites was compiled from 193 publications (from 1964 to January 2015). A total of 143 mite species belonging to the 3 orders (Mesostigmata, Sarcoptiformes and Trombidiformes) were recorded and found to be ...
Chaisiri, Kittipong   +3 more
core   +2 more sources

Sobre la fundación de la sociedad en la hormiga Cataglyphis iberica (Emery, 1906) (Hymenoptera, Formicidae) [PDF]

open access: yes, 1991
Colony founding in Cataglyphis iberica, a monogynous and polydomous ant species, has been studied. Nest population, worker size distribution and queeníworker dimorphism has been analyzed. Males and virgin females are found only in queenless nests. Virgin
Cerdà i Sureda, Xim, Retana, J.
core   +4 more sources

Viable Triploid Honey Bees (Apis mellifera capensis) Are Reliably Produced in the Progeny of CO2 Narcotised Queens

open access: yesG3: Genes, Genomes, Genetics, 2018
The haplodiploid system of sex determination of Hymenoptera acts as an exaptation for species to evolve novel forms of asexual reproduction including thelytoky (clonal offspring of the mother). During normal reproduction in Hymenoptera, three of the four
Benjamin P. Oldroyd   +7 more
doaj   +1 more source

Genetics of decayed sexual traits in a parasitoid wasp with endosymbiont-induced asexuality. [PDF]

open access: yes, 2014
Trait decay may occur when selective pressures shift, owing to changes in environment or life style, rendering formerly adaptive traits non-functional or even maladaptive.
AH Orr   +62 more
core   +3 more sources

Genetic diversity in populations of asexual and sexual bag worm moths (Lepidoptera: Psychidae)

open access: yesBMC Ecology, 2005
Background Despite the two-fold cost of sex, most of the higher animals reproduce sexually. The advantage of sex has been suggested to be its ability, through recombination, to generate greater genetic diversity than asexuality, thus enhancing adaptation
Mappes Johanna   +3 more
doaj   +1 more source

New records, nomenclatural changes, and taxonomic notes for select North American leaf beetles (Coleoptera: Chrysomelidae) [PDF]

open access: yes, 2001
New records, nomenclatural changes and taxonomic notes are presented for select North American leaf beetles (Coleoptera: Chrysomelidae). The following genera are newly recorded from the United States: Nesaecrepida Blake, 1964; Acallepitrix Bechyne, 1959;
Clark, Shawn M.   +2 more
core   +1 more source

Extreme genetic diversity in asexual grass thrips populations. [PDF]

open access: yes, 2016
The continuous generation of genetic variation has been proposed as one of the main factors explaining the maintenance of sexual reproduction in nature.
Dumas, Z.   +2 more
core   +1 more source

Facultative parthenogenesis in the burrowing mayfly, Ephoron eophilum (Ephemeroptera: Polymitarcyidae) with an extremely short alate stage

open access: yesEuropean Journal of Entomology, 2015
Facultative parthenogenesis is important for mayflies with short alate stages because females are able to reproduce without mating. We studied facultative parthenogenesis in Ephoron eophilum, a mayfly with an extremely short alate stage.
Kazuki SEKINÉ, Koji TOJO, Yeon Jae BAE
doaj   +1 more source

Wolbachia-Associated Thelytoky in Diaphorencyrtus aligarhensis (Hymenoptera: Encyrtidae), A Parasitoid of the Asian Citrus Psyllid

open access: yesFlorida Entomologist, 2007
Wolbachia is an obligate intracellular ct-pro teobacterium associated with arthropods and nematodes (O'Neill et al. 1997; Bazzochi et al. 2000). Wolbachia is transovarially transmitted by females to their progeny, and infections often are associated with reproductive anomalies in their host (O'Neill et al. 1997).
Jason M. Meyer, Marjorie A. Hoy
openaire   +1 more source

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