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Aug 4, 2021 · We assembled the first harvestman draft genome for the species Phalangium opilio, which bears elongate, prehensile appendages, made possible by numerous distal articles called tarsomeres. Here, we show that the genome of P. opilio exhibits a single Hox cluster and no evidence of WGD.
Nov 9, 2021 · Furthermore, we discovered conserved as well as divergent expression patterns of spider Wnt genes with respect to those of the harvestman Phalangium opilio, which did not have an ancestral WGD (Fig. 1 ).
- Ralf Janssen, Matthias Pechmann, Natascha Turetzek
- 2021
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Does Phalangium opilio have WGD?
What is Phalangium opilio?
Does Phalangium opilio have systemic genome duplication?
Is Phalangium opilio an emerging model arachnid?
Jan 11, 2021 · We assembled a draft genome of the daddy-long-legs Phalangium opilio, which revealed no signal of whole genome duplication. To test the hypothesis that single-copy Hox genes of the harvestman exhibit broader functions than subfunctionalized spider paralogs, we performed RNA interference against Deformed in P. opilio.
Phalangium opilio is a univoltine species in Europe, producing one generation per year that overwinters as eggs. Two or more generations may occur within a year in some areas of North America, in which case eggs, immatures, and adults may all overwinter.
Although P. opilio by itself appears unable to keep populations of any pest under control, it serves as one member of a complex of generalist predators that exist in many crops and that together are able to help keep pest densities low.
The rapid emergence and utility of Phalangium opilio as a model for evolutionary developmental biology of arthropods serve as demonstrative evidence of a new area of study in Opiliones biology, made possible through transcriptomic data.
Jan 11, 2021 · A staging system of P. opilio embryogenesis is presented that spans the most important morphogenetic events with respect to segment formation, appendage elongation and head development, and describes key events in segmentation, myogenesis, neurogenesis, and germ cell formation. Expand.
