Results 21 to 30 of about 758 (171)

Curing Parthenogenesis-Inducing (PI) Wolbachia-Induced Reproductive Disorders in the Egg Parasitoid Telenomus remus [PDF]

open access: yesBiology
Wolbachia is an endosymbiotic bacterium widespread in invertebrates that causes various reproductive effects, including cytoplasmic incompatibility, feminization, male killing, and the induction of parthenogenesis (PI).
I-Cheng Tu, Ching-Ting Lai, Li-Hsin Wu
doaj   +2 more sources

No Mate, No Problem: Molecular Mechanisms Involved in Parthenogenesis in the Cosmopolitan Earthworm Aporrectodea trapezoides (Annelida, Clitellata). [PDF]

open access: yesMol Ecol
ABSTRACT Approximately, 40% of earthworm species can reproduce by parthenogenesis. This is the case for the cosmopolitan species, Aporrectodea trapezoides, although sexual forms have been described sporadically. We analyse the genotypes and microbiomes of 30 individuals from four localities where both forms appear in order to understand the ...
de Sosa I   +9 more
europepmc   +2 more sources

Reproductive Transitions and Sperm Utilisation in a Facultatively Parthenogenetic Stick Insect. [PDF]

open access: yesEcol Evol
Facultative parthenogenesis enables females to switch from asexual (parthenogenetic) to sexual reproduction after mating, but the process of fertilisation is poorly understood in such animals. It is unknown whether switching reproductive modes requires changes in the eggs themselves, delaying the transition from laying unfertilised to fertilised eggs ...
Boldbaatar J   +4 more
europepmc   +2 more sources

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   +2 more sources

Coevolution and Functional Effects of Endosymbiotic <i>Rickettsia</i> in <i>Leptocybe invasa</i> Fisher & LaSalle (Hymenoptera: Eulophidae) Across China. [PDF]

open access: yesEcol Evol
Two distinct lineages of L. invasa and the dominant endosymbiont, Rickettsia, was identified, followed by an analysis of its infection density across various developmental stages and tissues of L. invasa. Furthermore, two distinct strains of the Rickettsia endosymbiont were detected, and the phylogenetic relationships between these strains and their L.
Xu X   +5 more
europepmc   +2 more sources

The first gynandromorph of a zorapteran and potential thelytokous parthenogenesis in a population of Zorotypus brasiliensis Silvestri (Zoraptera: Zorotypidae)

open access: yesRevista Brasileira de Entomologia, 2017
The first gynandromorph of the insect order Zoraptera is reported. A gynandromorph of Zorotypus brasiliensis Silvestri is described from a likely parthenogenetic population in the Atlantic Forest around the border of the Brazilian states of Minas Gerais, Rio de Janeiro, and São Paulo.
Rafael, José Albertino   +2 more
openaire   +8 more sources

Host-Associated Bacterial Community Changes After Laboratory Introduction Vary With Wolbachia Presence. [PDF]

open access: yesEnviron Microbiol
The endosymbiont Wolbachia promotes homogenisation and delays the microbial community response of the parasitic wasp Asobara japonica after a significant environmental change. This suggests that key microbial taxa can mediate community shifts and has important implications for experimental design in microbial ecology, particularly in translating lab ...
Brinker P   +3 more
europepmc   +2 more sources

Facultative use of thelytokous parthenogenesis for queen production in the polyandrous ant Cataglyphis cursor [PDF]

open access: yesJournal of Evolutionary Biology, 2013
AbstractThe evolutionary paradox of sex remains one of the major debates in evolutionary biology. The study of species capable of both sexual and asexual reproduction can elucidate factors important in the evolution of sex. One such species is the ant Cataglyphis cursor, where the queen maximizes the transmission of her genes by producing new queens ...
Doums, Claudie   +6 more
openaire   +5 more sources

Evaluation of asexual Wolbachia-infected Trichogramma brassicae performance in greenhouse and field conditions [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2023
In some Trichogramma species, parthenogenesis is mostly induced by intracellular symbiotic Wolbachia bacteria. Populations of this egg parasitoid wasp that produce more female progeny can potentially have higher fitness.
Shahram Farrokhi   +3 more
doaj   +1 more source

Comprehensive analysis of male-free reproduction in Monomorium triviale (Formicidae: Myrmicinae).

open access: yesPLoS ONE, 2021
We report comprehensive evidence for obligatory thelytokous parthenogenesis in an ant Monomorium triviale. This species is characterized by distinct queen-worker dimorphism with strict reproductive division of labor: queens produce both workers and new ...
Naoto Idogawa   +3 more
doaj   +1 more source

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