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Jul 27, 2023 · Spiders represent an evolutionary successful group of chelicerate arthropods. The body of spiders is subdivided into two regions (tagmata). The anterior tagma, the prosoma, bears the head appendages and four pairs of walking legs. The segments of the posterior tagma, the opisthosoma, either lost their appendages during the course of evolution or their appendages were substantially modified to ...
Phalangium opilio have suggested that harvestmen do not exhibit systemic genome duplication, as evidenced by the absence of paralogy across the homeobox gene family [2,14] and gene expression patterns of genes with known paralo-gues in arachnopulmonates [2,6]. As a result, P. opilio has proven useful for the study of chelicerate developmental ...
Phalangium opilio. (Arachnida: Opiliones, Phalangiidae) Harvestman, Daddy longlegs, Harvest spider. Of the many species of harvestmen known, P. opilio tends to be the most common in relatively disturbed habitats such as most crops in temperate regions. Like the spiders and most adult mites, harvestmen have two major body sections and eight legs ...
Phalangium opilio is a common and widespread species which becomes more coastal in Scotland. It is unclear when this species was first recorded in Britain but the first HRS record is from Glanvilles Wooton in Dorset prior to 1878. It is widely distributed across Europe, including southern Sweden. It extends to North America and Asia and has ...
Phalangium opilio have suggested that harvestmen do not exhibit systemic genome duplication, as evidenced by the absence of paralogy across the homeobox gene family [2,14] and gene expression patterns of genes with known paralo-gues in arachnopulmonates [2,6]. As a result, P. opilio has proven useful for the study of chelicerate developmental ...
Sep 1, 2018 · Abstract. Homeobox genes are key toolkit genes that regulate the development of metazoans and changes in their regulation and copy number have contributed to the evolution of phenotypic diversity. We recently identified a whole genome duplication (WGD) event that occurred in an ancestor of spiders and scorpions (Arachnopulmonata), and that many ...
Nov 9, 2021 · With respect to gene duplication, the analysis revealed partially different complements of Wnt genes in these different spider lineages. 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). Our ...
