Homology of arthropod anterior appendages revealed by Hox gene expression in a sea spider

Article Abstract:

Examinations of the Hox gene expression patterns and immunohistological analysis have resolved the relationships between cerebral appendages of the two main extant arthropod lineages, the Euchelicerata and the Mandibulata. New studies show that the short prehensile chelicerae of euchelicerates, and the antennae of mandibulates, are homologous, both being innervated by deutocerebral ganglia.

Health aspects, Genetic aspects, Sea spiders, Appendages (Animal anatomy)

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Industrializing neuroscience

Article Abstract:

Industrialization has helped the Allen Institute for Brain Science to map the transcriptome of the entire mouse brain where each of 21,500 genes will be activated in a couple of years instead of a century. This provides unprecedented insight into how gene expression is orchestrated throughout the brain and the ability to pinpoint the anatomical locations of expressed genes.

United States, Analysis, Computational biology, Neurosciences

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