Origins of asexuality in
BMC Evolutionary Biology, 2008 Background Obligate asexual reproduction is rare in the animal kingdom. Generally, asexuals are considered evolutionary dead ends that are unable to radiate. The phytophagous mite genus Bryobia contains a large number of asexual species.
Menken Steph BJ +2 more
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Stepwise emergence of recombination suppression precedes fissiparous asexuality in the planarian Schmidtea mediterranea [PDF]
Nature CommunicationsA central paradox in evolutionary biology is the rarity of asexual reproduction, often attributed to developmental constraints and long-term costs. Yet, fissiparous asexuality—where animals split and regenerate—is widespread among planarians, hinting at ...
Jeremias N. Brand +8 more
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Canadian Medical Association Journal, 2023 Schneckenburger, Stella A. +2 more
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Asexuality Disclosure in Healthcare: Attachment and Patient‐Reported Experiences in a Cross‐Sectional Pilot Survey [PDF]
Health Science ReportsBackground and Aims Asexual adults often report misunderstandings during clinical encounters. We described romantic attachment (ECR‐R anxiety/avoidance) in an asexual sample and tested whether disclosure in medical settings was associated with feelings ...
Kyung‐Eun (Anna) Choi +2 more
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Population genomics and epigenomics of Spirodela polyrhiza provide insights into the evolution of facultative asexuality [PDF]
Communications BiologyMany plants are facultatively asexual, balancing short-term benefits with long-term costs of asexuality. During range expansion, natural selection likely influences the genetic controls of asexuality in these organisms.
Yangzi Wang +8 more
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Rethinking asexuality: the enigmatic case of functional sexual genes in Lepraria (Stereocaulaceae) [PDF]
BMC GenomicsBackground The ubiquity of sex across eukaryotes, given its high costs, strongly suggests it is evolutionarily advantageous. Asexual lineages can avoid, for example, the risks and energetic costs of recombination, but suffer short-term reductions in ...
Meredith M. Doellman +4 more
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On the Genealogy of Asexual Diploids [PDF]
Journal of Computational Biology, 2010 Abstract Given molecular genetic data from diploid individuals that, at present, reproduce mostly or exclusively asexually without recombination, an important problem in evolutionary biology is detecting evidence of past sexual reproduction (i.e., meiosis and mating) and recombination (both meiotic and mitotic ...
Fumei Lam +2 more
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The Evolutionary and Molecular Features of Broad Host-Range Necrotrophy in Plant Pathogenic Fungi
Frontiers in Plant Science, 2020 Necrotrophic fungal pathogens cause considerable disease on numerous economically important crops. Some of these pathogens are specialized to one or a few closely related plant species, whereas others are pathogenic on many unrelated hosts.
Toby E. Newman, Mark C. Derbyshire
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Not so clonal asexuals: Unraveling the secret sex life of Artemia parthenogenetica
Evolution Letters, 2021 The maintenance of sex is paradoxical as sexual species pay the “twofold cost of males” and should thus quickly be replaced by asexual mutants reproducing clonally.
Loreleï Boyer +4 more
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Contradictions in the Representation of Asexuality: Fiction and Reality.
IAFOR Journal of Arts & Humanities, 2017 This paper discusses an obscure chapter in the history of sexuality, one that has received precious little attention until quite recently: asexuality.
Gwendolyn Osterwald
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