Thematische Bibliographien / Transition to asexuality

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Auswahl der wissenschaftlichen Literatur zum Thema „Transition to asexuality“

Autor: Grafiati

Veröffentlicht am 22. Juni 2024

Zuletzt aktualisiert am 31. Juli 2025

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Zeitschriftenartikel zum Thema "Transition to asexuality"

Dedukh, Dmitrij, Anatolie Marta, and Karel Janko. "Challenges and Costs of Asexuality: Variation in Premeiotic Genome Duplication in Gynogenetic Hybrids from Cobitis taenia Complex." International Journal of Molecular Sciences 22, no. 22 (2021): 12117. http://dx.doi.org/10.3390/ijms222212117.

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The transition from sexual reproduction to asexuality is often triggered by hybridization. The gametogenesis of many hybrid asexuals involves premeiotic genome endoreplication leading to bypass hybrid sterility and forming clonal gametes. However, it is still not clear when endoreplication occurs, how many gonial cells it affects and whether its rate differs among clonal lineages. Here, we investigated meiotic and premeiotic cells of diploid and triploid hybrids of spined loaches (Cypriniformes: Cobitis) that reproduce by gynogenesis. We found that in naturally and experimentally produced F1 h

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Huylmans, Ann Kathrin, Ariana Macon, Francisco Hontoria, and Beatriz Vicoso. "Transitions to asexuality and evolution of gene expression in Artemia brine shrimp." Proceedings of the Royal Society B: Biological Sciences 288, no. 1959 (2021): 20211720. http://dx.doi.org/10.1098/rspb.2021.1720.

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While sexual reproduction is widespread among many taxa, asexual lineages have repeatedly evolved from sexual ancestors. Despite extensive research on the evolution of sex, it is still unclear whether this switch represents a major transition requiring major molecular reorganization, and how convergent the changes involved are. In this study, we investigated the phylogenetic relationship and patterns of gene expression of sexual and asexual lineages of Eurasian Artemia brine shrimp, to assess how gene expression patterns are affected by the transition to asexuality. We find only a few genes th

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Beck, James B., Patrick J. Alexander, Loreen Allphin, et al. "DOES HYBRIDIZATION DRIVE THE TRANSITION TO ASEXUALITY IN DIPLOID BOECHERA?" Evolution 66, no. 4 (2011): 985–95. http://dx.doi.org/10.1111/j.1558-5646.2011.01507.x.

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Kampfraath, Andries Augustus, Tjeerd Pieter Dudink, Ken Kraaijeveld, Jacintha Ellers, and Zaira Valentina Zizzari. "Male Sexual Trait Decay in Two Asexual Springtail Populations Follows Neutral Mutation Accumulation Theory." Evolutionary Biology 47, no. 4 (2020): 285–92. http://dx.doi.org/10.1007/s11692-020-09511-z.

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Abstract The transition to asexual reproduction is frequent and widespread across the tree of life and constitutes a major life history change. Without sexual reproduction, selection on sexually selected traits is expected to be weaker or absent, allowing the decay and ultimately loss of sexual traits. In this study, we applied an experimental approach to investigate the decay of reproductive traits under asexuality in two asexual populations of the springtail Folsomia candida. Specifically, we compared several key male sexual traits of a sexual population and two distinct parthenogenetic line

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Etoundi, Emilie, Martin Vastrade, Clothilde Berthelin, Kristell Kellner, Mélanie Fafin-Lefèvre, and Karine Van Doninck. "Transition from sexuality to androgenesis through a meiotic modification during spermatogenesis in freshwater Corbicula clams." PLOS ONE 19, no. 11 (2024): e0313753. http://dx.doi.org/10.1371/journal.pone.0313753.

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Asexual taxa are often considered as rare and vowed to long-term extinction, notably because of their reduced ability for rapid genetic changes and potential adaptation. The rate at which they derive from sexual ancestors and their developmental mode however influence genetic variation in asexual populations. Understanding the transition from sexuality to asexuality is therefore important to infer the evolutionary outcome of asexual taxa. The present work explored the transition from sexuality to androgenesis, a reproductive mode in which the males use female resources to clone themselves, in

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Paland, S. "Transitions to Asexuality Result in Excess Amino Acid Substitutions." Science 311, no. 5763 (2006): 990–92. http://dx.doi.org/10.1126/science.1118152.

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Larose, Chloé, Darren J. Parker, and Tanja Schwander. "Fundamental and realized feeding niche breadths of sexual and asexual stick insects." Proceedings of the Royal Society B: Biological Sciences 285, no. 1892 (2018): 20181805. http://dx.doi.org/10.1098/rspb.2018.1805.

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The factors contributing to the maintenance of sex over asexuality in natural populations remain unclear. Ecological divergences between sexual and asexual lineages could help to maintain reproductive polymorphisms, at least transiently, but the consequences of asexuality for the evolution of ecological niches are unknown. Here, we investigated how niche breadths change in transitions from sexual reproduction to asexuality. We used host plant ranges as a proxy to compare the realized feeding niche breadths of five independently derived asexual Timema stick insect species and their sexual relat

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Butlin, R. "Comment on "Transitions to Asexuality Result in Excess Amino Acid Substitutions"." Science 313, no. 5792 (2006): 1389. http://dx.doi.org/10.1126/science.1128655.

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Тимощук, А. С. "Эффекты деонтологизации в современной картине мира". All-Russian Scientific and Practical Journal of Social and Humanitarian Research, № 1(16) (31 березня 2025): 110–17. https://doi.org/10.46741/sgjournal.2025.16.1.013.

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В статье исследуется проблема истончения бытия, его перехода в эфирные, искусственные, виртуальные формы. Деонтологизация рассматривается на примере права, уголовно-исполнительной политики, экономики, естествознания и других социокультурных стратегий развития. Так, одним из трендов современности выступает всевозрастающая роль информации, а также виртуализация товарно-денежных отношений (увеличение капитализации IT-компаний, медиагрупп и онлайн-сервисов). При этом демонстрируется, что нигилистическое прочтение права разбивается о позитивистское правоприменение в виде, например, пенитенциарной п

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Tilquin, Anaïs, and Hanna Kokko. "What does the geography of parthenogenesis teach us about sex?" Philosophical Transactions of the Royal Society B: Biological Sciences 371, no. 1706 (2016): 20150538. http://dx.doi.org/10.1098/rstb.2015.0538.

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Theory predicts that sexual reproduction is difficult to maintain if asexuality is an option, yet sex is very common. To understand why, it is important to pay attention to repeatably occurring conditions that favour transitions to, or persistence of, asexuality. Geographic parthenogenesis is a term that has been applied to describe a large variety of patterns where sexual and related asexual forms differ in their geographic distribution. Often asexuality is stated to occur in a habitat that is, in some sense, marginal, but the interpretation differs across studies: parthenogens might not only

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Dissertationen zum Thema "Transition to asexuality"

Boyer, Loreleï. "Causes et conséquences évolutives de l’asexualité non-clonale chez Artemia." Thesis, Université de Montpellier (2022-….), 2022. http://www.theses.fr/2022UMONG006.

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La majorité des espèces parthénogétiques sont souvent perçues comme clonales. La clonalité est coûteuse à long terme, car elle peut entraîner l'accumulation de mutations délétères et une moins bonne capacité d’adaptation. Cependant, les cas d’espèces asexuées non clonales s'accumulent. L’asexualité non-clonale génère des conséquences génomiques et de fitness très différentes de la clonalité, et pourraient représenter une étape-clé dans la transition du sexe vers l’asexualité. De plus, l’asexualité peut être souvent non-obligatoire, avec des événements de sexe cryptiques. Ces évènements peuvent

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Defendini, Hélène. "Bases génétiques et conséquences évolutives de la perte de sexe dans le groupe des pucerons." Electronic Thesis or Diss., Rennes, Agrocampus Ouest, 2023. http://www.theses.fr/2023NSARA094.

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La reproduction sexuée est considérée comme le mode de reproduction ancestral des eucaryotes, mais elle été perdue à plusieurs reprises dans de nombreux taxons. Comprendre les mécanismes par lesquels les lignées asexuées apparaissent et persistent dans le temps reste un défi majeur de la biologie évolutive. Au cours de ma thèse, j'ai étudié les bases génétiques ainsi que les conséquences évolutives de la perte du sexe chez les pucerons, un groupe qui présente un polymorphisme de reproduction. Le mode de reproduction ancestral des pucerons est la parthénogenèse cyclique (CP, une alternance de p

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Buchteile zum Thema "Transition to asexuality"

Teather, Kevin. "The Road to Sexual Reproduction." In The Evolution of Sex. Oxford University PressOxford, 2024. http://dx.doi.org/10.1093/9780191994418.003.0003.

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Abstract Living organisms are divided into two superkingdoms: the prokaryotes and eukaryotes. Prokaryotes consist of eubacteria and archaebacteria, are single-celled, and breed asexually. All other organisms comprise eukaryotes. These are larger, more complex, often multicellular, and, with some exceptions, reproduce sexually. About two billion years ago, eukaryotes evolved from prokaryotes by incorporating oxygen-using eubacteria into anaerobic archaeans. This development was accompanied by increased oxidative metabolism using the newly acquired bacteria, or mitochondria. The mitochondrial ge

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Konferenzberichte zum Thema "Transition to asexuality"

Schwander, Tanja. "Convergent gene expression changes across independent transitions to asexuality: Insights from stick insects." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94152.

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