Results 41 to 50 of about 418 (153)

Unexpected monophyletic origin of Ephoron shigae unisexual reproduction strains and their rapid expansion across Japan [PDF]

open access: yesRoyal Society Open Science, 2015
The burrowing polymitarcyid mayfly Ephoron shigae is distributed across Japan, Korea, northeast China and far east Russia. Some populations are bisexual, and others are unisexual, i.e. geographically parthenogenetic throughout Japan.
K. Sekiné, F. Hayashi, K. Tojo
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

Thelytoky and Sex Determination in the Hymenoptera: Mutual Constraints [PDF]

open access: yesSexual Development, 2013
The Hymenoptera show a high propensity for transitions from arrhenotokous reproduction (diploid females develop from fertilized eggs, haploid males from unfertilized eggs) to thelytokous reproduction (diploid females develop from unfertilized eggs). However, the evolution of thelytoky is frequently constrained by the sex determination system. Under the
openaire   +3 more sources

Spontaneous parthenogenesis in the parasitoid wasp Cotesia typhae: low frequency anomaly or evolving process?

open access: yesPeer Community Journal, 2022
Hymenopterans are haplodiploids and unlike most other Arthropods they do not possess sexual chromosomes. Sex determination typically happens via the ploidy of individuals: haploids become males and diploids become females.
Capdevielle Dulac, Claire   +6 more
doaj   +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

Limited Mating Ability of a Wasp Strain with Rickettsia-Induced Thelytoky

open access: yesAnnals of the Entomological Society of America, 2020
Abstract Sexual reproduction is the dominant mode of reproduction in plants and animals; however, some species from various taxonomic groups reproduce asexually. Because some of these asexual species lack DNA recombination and so have low genetic variability, these asexual species are more likely to go extinct than sexual species ...
Tetsuya Adachi-Hagimori, Kazuki Miura
openaire   +1 more source

Fertile diploid males in the ant Cataglyphis cursor: a potential cost of thelytoky? [PDF]

open access: yesBehavioral Ecology and Sociobiology, 2013
Peer ...
Doums, Claudie   +5 more
openaire   +5 more sources

Restricted Gene Flow among Lineages of Thrips tabaci Supports Genetic Divergence Among Cryptic Species Groups. [PDF]

open access: yesPLoS ONE, 2016
Knowledge of the relative influence of population- versus species-level genetic variation is important to understand patterns of phenotypic variation and ecological relationships that exist among and within morphologically indistinguishable cryptic ...
Alana L Jacobson   +3 more
doaj   +1 more source

Parthenogenetic vs. sexual reproduction in oribatid mite communities

open access: yesEcology and Evolution, 2019
The dominance of sex in Metazoa is enigmatic. Sexual species allocate resources to the production of males, while potentially facing negative effects such as the loss of well‐adapted genotypes due to recombination, and exposure to diseases and predators ...
Mark Maraun   +9 more
doaj   +1 more source

Detection of Gene Flow from Sexual to Asexual Lineages in Thrips tabaci (Thysanoptera: Thripidae). [PDF]

open access: yesPLoS ONE, 2015
Populations of Thrips tabaci are known to have two sympatric but genetically isolated reproductive modes, arrhenotoky (sexual reproduction) and thelytoky (asexual reproduction).
Xiao-Wei Li   +3 more
doaj   +1 more source

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