Keywords: male killing
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Combined actions of bacteriophage-encoded genes in Wolbachia-induced male lethalityH. Arai, H. Anbutsu, Y. Nishikawa, M. Kogawa, K. Ishii, M. Hosokawa, S. R. Lin, M. Ueda, M. Nakai, Y. Kunimi, T. Harumoto, D. Kageyama, H. Takeyama and M. N. Inoue, iScience, 26:106842. 2023.
Some Wolbachia endosymbionts induce male killing, whereby male offspring of infected females are killed during development; however, the origin and diversity of the underlying mechanisms remain unclear. In this study, we identified a 76 kbp prophage region specific to ... |
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A male-killing Wolbachia endosymbiont is concealed by another endosymbiont and a nuclear suppressorK. M. Richardson, P. A. Ross, B. S. Cooper, W. R. Conner, T. Schmidt and A. A. Hoffmann, PLoS Biol, 21:e3001879. 2023.
Bacteria that live inside the cells of insect hosts (endosymbionts) can alter the reproduction of their hosts, including the killing of male offspring (male killing, MK). MK has only been described in a few insects, but this may reflect challenges in detecting MK rather than its ... |
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Cell-based analysis reveals that sex-determining gene signals in Ostrinia are pivotally changed by male-killing WolbachiaB. Herran, T. N. Sugimoto, K. Watanabe, S. Imanishi, T. Tsuchida, T. Matsuo, Y. Ishikawa and D. Kageyama, PNAS Nexus, pgac293. 2022.
Wolbachia, a maternally transmitted bacterium, shows male-killing, an adaptive phenotype for cytoplasmic elements, in various arthropod species during the early developmental stages. In lepidopteran insects, lethality of males is accounted for by improper dosage compensation in ... |
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A Wolbachia factor for male killing in lepidopteran insectsS. Katsuma, K. Hirota, N. Matsuda-Imai, T. Fukui, T. Muro, K. Nishino, H. Kosako, K. Shoji, H. Takanashi, T. Fujii, S.-i. Arimura and T. Kiuchi, Nature Communications, 13:6764. 2022.
Bacterial symbionts, such as Wolbachia species, can manipulate the sexual development and reproduction of their insect hosts. For example, Wolbachia infection induces male-specific death in the Asian corn borer Ostrinia furnacalis by targeting the host factor Masculinizer (Masc), ... |
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Hidden endosymbionts: A male-killer concealed by another endosymbiont and a nuclear suppressorK. M. Richardson, P. A. Ross, B. S. Cooper, W. R. Conner, T. Schmidt and A. A. Hoffmann, bioRxiv, 2022.10.19.512817. 2022.
Maternally transmitted endosymbiotic bacteria that cause male killing (MK) have only been described from a few insects, but this may reflect challenges in their detection rather than a rarity of MK. Here we identify MK Wolbachia in populations of Drosophila pseudotakahashii, ... |
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Male-killing-associated bacteriophage WO identified from comparisons of Wolbachia endosymbionts of Homona magnanimaH. Arai, H. Anbutsu, Y. Nishikawa, M. Kogawa, K. Ishii, M. Hosokawa, S.-R. Lin, M. Ueda, M. Nakai, Y. Kunimi, T. Harumoto, D. Kageyama, H. Takeyama and M. N. Inoue, bioRxiv, 2022.
The origin and mechanism of male-killing, an advantageous strategy employed by maternally transmitted symbionts such as Wolbachia, remain unclear. We compared genomes of four Wolbachia strains derived from Homona magnanima, a male-killing strain wHm-t (1.5 Mb), and three ... |
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Positive selection and horizontal gene transfer in the genome of a male-killing WolbachiaT. Hill, R. L. Unckless and J. I. Perlmutter, Molecular Biology and Evolution, 2021.
Wolbachia are a genus of widespread bacterial endosymbionts in which some strains can hijack or manipulate arthropod host reproduction. Male killing is one such manipulation in which these maternally transmitted bacteria benefit surviving daughters in part by removing competition ... |
