Results 21 to 30 of about 547 (142)

Thelytokous parthenogenesis in unmated queen honeybees (Apis mellifera capensis): central fusion and high recombination rates. [PDF]

open access: yesGenetics, 2008
Abstract The subspecies of honeybee indigenous to the Cape region of South Africa, Apis mellifera capensis, is unique because a high proportion of unmated workers can lay eggs that develop into females via thelytokous parthenogenesis involving central fusion of meiotic products.
Oldroyd BP   +5 more
europepmc   +5 more sources

Hybridogenesis through thelytokous parthenogenesis in twoCataglyphisdesert ants [PDF]

open access: yesMolecular Ecology, 2012
AbstractHybridogenesis is a sexual reproductive system, whereby parents from different genetic origin hybridize. Both the maternal and paternal genomes are expressed in somatic tissues, but the paternal genome is systematically excluded from the germ line, which is therefore purely maternal.
Eyer, P.   +3 more
openaire   +3 more sources

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

Widespread occurrence of asexual reproduction in higher termites of the Termes group (Termitidae: Termitinae)

open access: yesBMC Evolutionary Biology, 2019
Background A decade ago, the mixed reproductive strategy Asexual Queen Succession (AQS) was first described in termites. In AQS species, the workers, soldiers and dispersing reproductives are produced through sexual reproduction, while non-dispersing ...
Simon Hellemans   +5 more
doaj   +1 more source

The complete mitochondrial genome of a parthenogenetic ant Monomorium triviale (Hymenoptera: Formicidae)

open access: yesMitochondrial DNA. Part B. Resources, 2021
Monomorium is one of the most species-rich yet taxonomically problematic ant genus. An East Asian species, M. triviale Wheeler, W.M., 1906, is reproduced by obligate thelytokous parthenogenesis and performs strict reproductive division of labor.
Naoto Idogawa   +3 more
doaj   +1 more source

Parthenogenesis in scorpions: some history - new data

open access: yesJournal of Venomous Animals and Toxins including Tropical Diseases, 2008
Parthenogenesis, a rare phenomenon in Chelicerates, apart from mites, is reviewed in scorpions, notably Tityus serrulatus Lutz & Mello from Brazil, Tityus columbianus (Thorell) from Colombia and Tityus metuendus Pocock from Peru and Brazil.
W. R. Lourenço
doaj   +1 more source

What mechanistic factors affect thelytokous parthenogenesis in Apis mellifera caponises queens? [PDF]

open access: yesApidologie, 2020
The Cape honey bee (Capensis) is unusual in that workers can produce viable female offspring via thelytokous parthenogenesis. In contrast, mated queens never reproduce thelytokously, even though they could benefit from doing so when generating daughter queens.
Sarah E. Aamidor   +6 more
openaire   +1 more source

Occurrence of arrhenotoky and thelytoky in a parasitic wasp Venturia canescens (Hymenoptera: Ichneumonidae): Effect of endosymbionts or existence of two distinct reproductive modes?

open access: yesEuropean Journal of Entomology, 2013
Endosymbiotic organisms are known to manipulate the reproductive biology of their hosts. Incomplete prevalence of endosymbiont inducing thelytokous parthenogenesis results in the coexistence of sexual and asexual individuals, and could account for the ...
Vincent FORAY   +4 more
doaj   +1 more source

Comparison of bacterial diversity and abundance between sexes of Leptocybe invasa Fisher & La Salle (Hymenoptera: Eulophidae) from China [PDF]

open access: yesPeerJ, 2020
Background Insects harbor a myriad of microorganisms, many of which can affect the sex ratio and manipulate the reproduction of the host. Leptocybe invasa is an invasive pest that causes serious damage to eucalyptus plantations, and the thelytokous ...
Chunhui Guo   +6 more
doaj   +2 more sources

Population genetic structure, worker reproduction and thelytokous parthenogenesis in the desert ant Cataglyphis sabulosa [PDF]

open access: yesHeredity, 2008
In social Hymenoptera, within-colony relatedness is usually high due to the haplodiploid sex-determining system. However, factors such as the presence of multiple reproductive queens (polygyny), multiple queen matings (polyandry) or worker reproduction result in decreased relatedness among workers and the brood they rear, and consequently dilute their ...
Timmermans, Iris   +3 more
openaire   +3 more sources

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