Results 1 to 10 of about 384 (142)

Apomixis for no bacteria-induced thelytoky in Diglyphus wani (Hymenoptera: Eulophidae) [PDF]

open access: yesFrontiers in Genetics, 2023
In Hymenoptera species, the reproductive mode is usually arrhenotoky, where haploid males arise from unfertilized eggs and diploid females from fertilized eggs.
Sujie Du   +8 more
doaj   +4 more sources

Evaluation of the Parasitism Capacity of a Thelytoky Egg Parasitoid on a Serious Rice Pest, Nilaparvata lugens (Stål) [PDF]

open access: yesAnimals, 2022
Pseudoligosita yasumatsui and Anagrus nilaparvatae are both egg parasitoids of the brown planthopper, Nilaparvata lugens (Stål) (BPH). In this study, we obtained a stable strain of P.
Longqing Shi   +4 more
doaj   +4 more sources

True Parthenogenesis and Female-Biased Sex Ratios in Cicadomorpha and Fulgoromorpha (Hemiptera, Auchenorrhyncha) [PDF]

open access: yesInsects, 2023
Insects are renowned for their remarkable diversity of reproductive modes. Among these, the largest non-holometabolous order, Hemiptera, stands out with one of the most diversified arrays of parthenogenesis modes observed among insects.
Dora Aguín-Pombo   +1 more
doaj   +2 more sources

Multiple Data Demonstrate That Bacteria Regulating Reproduction Could Be Not the Cause for the Thelytoky of Diglyphus wani (Hymenoptera: Eulophidae) [PDF]

open access: yesInsects, 2021
In Hymenoptera parasitoids, the reproductive mode is arrhenotoky, while a few species reproduce by thelytoky. The thelytoky of Hymenoptera parasitoids is generally genetically determined by the parasitoids themselves or induced by bacteria, including ...
Sujie Du   +6 more
doaj   +2 more sources

Parthenogenetic Reproduction in Strumigenys Ants: An Update [PDF]

open access: yesInsects, 2023
Parthenogenetic reproduction is a common feature for social Hymenoptera, as males typically develop from unfertilized eggs (arrhenotoky). Production of female offspring without the involvement of sperm (thelytoky) also exists but is rather exceptional as
Chu Wang   +4 more
doaj   +2 more sources

Wolbachia-mediated parthenogenesis induction in the aphid hyperparasitoid Alloxysta brevis (Hymenoptera: Figitidae: Charipinae) [PDF]

open access: yesApplied and Environmental Microbiology
Thelytokous parthenogenesis (thelytoky), in which females can produce female offspring without mating, can be caused by parthenogenesis-inducing endosymbiotic bacteria in the genus Wolbachia.
Jonathan Dregni   +4 more
doaj   +2 more sources

High temperature mortality of Wolbachia impacts the sex ratio of the parasitoid Ooencyrtus mirus (Hymenoptera: Encyrtidae) [PDF]

open access: yesPeerJ, 2022
Background Wolbachia bacteria are estimated to occur in more than half of all insect species. In Hymenoptera, Wolbachia often manipulates its host’s reproduction to its own advantage.
Nancy R. Power   +4 more
doaj   +3 more sources

Investigation of the spermathecal morphology, reproductive strategy and fate of stored spermatozoa in three important thysanopteran species [PDF]

open access: yesScientific Reports, 2022
In insects, females can keep sperm capable of fertilisation over a long period with the help of the spermatheca. The effectiveness of storing fertile sperm is expected to reflect in the reproductive strategy and, thus, the morphology of the involved ...
Stephanie Krueger   +3 more
doaj   +2 more sources

Thelytokous Reproduction of Onion Thrips, Thrips tabaci Lindeman 1889, Infesting Welsh Onion and Genetic Variation among Their Subpopulations [PDF]

open access: yesInsects, 2022
Parthenogenesis is not uncommon in thrips. This asexual reproduction produces males (arrhenotokous) or female (thelytokous). Only females are found in the onion thrips (Thrips tabaci Lindeman 1889) infesting Welsh onion (Allium fistulosum) in several ...
Falguni Khan   +2 more
doaj   +2 more sources

Evolutionary Potential of Parthenogenesis—Bisexual Lineages within Triploid Apomictic Thelytoky in Cacopsylla ledi (Flor, 1861) (Hemiptera, Psylloidea) in Fennoscandia [PDF]

open access: yesInsects, 2022
A widely accepted hypothesis is that parthenogenesis is an evolutionary dead end since it is selectively advantageous in the short term only but results in lowered diversification rates. Triploid apomictic parthenogenesis might represent an exception, as
Seppo Nokkala   +3 more
doaj   +2 more sources

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