Bei Speculative Evolution haben wir ausgehend von wissenschaftlichen Publikationen über synthetische Biologie, Gentechnik und Robotik überlegt, wie Arten weiterentwickelt werden könnten, um ihre Widerstandsfähigkeit zu erhöhen. Daraufhin haben wir Textanweisungen formuliert, um mit DALL-E KI-generierte Bilder zu erstellen. Jede spekulative Art in der Simulation hat so eine Hintergrundgeschichte, die in realen Szenarien verwurzelt ist.
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Cuckoo Wasps | |
2020 | CRISPR/Cas9 gene drive to suppress and eradicate globally invasive wasps Laboratory research by Letser et al., 2020 |
2054 | CRISPR/Cas9 gene drive which through reproduction grows larger and larger hindquarters and gradually leads to extinction |
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Samsung G955U, Android 9, Xi'an, China (15-5-2)
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Samsung G955U, Android 9, Basel, Switzerland (15-7-2)
Samsung G955F, Android 9, Lucerne, Switzerland (15-7-2-1)
The potential for a CRISPR gene drive to eradicate or suppress globally invasive social wasps
Lester, P.J., Bulgarella, M., Baty, J.W. et al. Sci Rep 10, 12398 (2020).
https://www.nature.com/articles/s41598-020-69259-6
Abstract
CRISPR gene drives have potential for widespread and cost-efficient pest control, but are highly controversial. We examined a potential gene drive targeting spermatogenesis to control the invasive common wasp (Vespula vulgaris) in New Zealand. Vespula wasps are haplodiploid. Their life cycle makes gene drive production challenging, as nests are initiated by single fertilized queens in spring followed by several cohorts of sterile female workers and the production of reproductives in autumn. We show that different spermatogenesis genes have different levels of variation between introduced and native ranges, enabling a potential ‘precision drive’ that could target the reduced genetic diversity and genotypes within the invaded range. In vitro testing showed guide-RNA target specificity and efficacy that was dependent on the gene target within Vespula, but no cross-reactivity in other Hymenoptera. Mathematical modelling incorporating the genetic and life history traits of Vespula wasps identified characteristics for a male sterility drive to achieve population control. There was a trade-off between drive infiltration and impact: a drive causing complete male sterility would not spread, while partial sterility could be effective in limiting population size if the homing rate is high. Our results indicate that gene drives may offer viable suppression for wasps and other haplodiploid pests.
Sampling sites for the genetic analysis, and genetic variation of genes involved in spermatogenesis in each region. (a) The common wasp is native to Eurasia but is now widespread throughout New Zealand, especially in the upper South Island in native honeydew beech tree forest communities. Photograph by Colin McDiarmid. Sites where wasps were sampled from (b) the introduced range in New Zealand and (c) the native range. (d) and (e) show a rarefaction analysis of the discovery rate and diversity of nucleic acid substitutions within each spermatogenesis gene region from European and New Zealand samples. For some gene regions (e.g. boule1) there is little variation anywhere, while other genes show more substitutions in the native range than in New Zealand (e.g. sdic). bp base pairs in the gene sequence analysed.