Endosymbiont-free ants: Molecular biological evidence that neither Wolbachia, Cardinium or any other bacterial endosymbionts play a role in thelytokous parthenogenesis in the harvester ant species, Messor barbarus and M. capitatus (Hymenoptera: Formicidae) [PDF]
European Journal of Entomology, 2013 Thelytokous parthenogenesis is a type of sex determination in which females are produced from unfertilized eggs. Genetic and endosymbiont-induced forms of thelytoky have been described in the Hymenoptera. Our study has revealed that Wolbachia, Cardinium,
Begoña Peco
exaly +4 more sources
Oviposition Traits and Vitellogenin-Related Gene Functions in Ooencyrtus kuvanae [PDF]
InsectsOoencyrtus kuvanae is an egg parasitoid species that attacks the egg masses of Dendrolimus spp. and Lymantria spp. in China, which gives it a temporal niche advantage against pest infestations by Dendrolimus spp. and Lymantria spp.
Ciding Lu +8 more
doaj +2 more sources
Diet-Induced Developmental and Morphological Plasticity in a Thelytokous Predatory Mite <i>Amblyseius herbicolus</i> (Chant) (Acari: Phytoseiidae). [PDF]
Ecol EvolThis study investigated how variation in prey consumption influences immature development and adult morphometric traits in the predatory mite Amblyseius herbicolus. Mites that ate more prey attained a larger size at maturity but did not develop more rapidly. Several morphometric traits were also significantly influenced by diet.
Zhang K, Zhang ZQ.
europepmc +2 more sources
Curing Parthenogenesis-Inducing (PI) Wolbachia-Induced Reproductive Disorders in the Egg Parasitoid Telenomus remus [PDF]
BiologyWolbachia 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]
Mol EcolABSTRACT 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]
Ecol EvolFacultative 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
Coevolution and Functional Effects of Endosymbiotic <i>Rickettsia</i> in <i>Leptocybe invasa</i> Fisher & LaSalle (Hymenoptera: Eulophidae) Across China. [PDF]
Ecol EvolTwo 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
Genetic evidence for parthenogenesis in the small carpenter bee Ceratina dallatoreana (Apidae, Ceratinini) in its native distribution range [PDF]
Journal of Hymenoptera Research, 2023 Arrhenotoky is the typical mode of reproduction in Hymenoptera. Diploid females develop from fertilized eggs, whereas haploid males originate from unfertilized eggs.
Michael Mikát, Jakub Straka
doaj +3 more sources
Evaluation of asexual Wolbachia-infected Trichogramma brassicae performance in greenhouse and field conditions [PDF]
نامه 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).
PLoS 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