Zebrafish

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    In Context 

    • Nerve-end connections known as synapses form is highlighted in a recent study of Purkinje neurons in the cerebellum of knockout zebrafish.

    More in News 

    • Zebrafish are transparent and neuron development in larval zebrafish can be observed from day to day by injecting a dye or by engineering the fish to express fluorescent proteins.
    • It has been observed that knocking out a particular protein known as the gap junction delta 2b (gjd2b) in the cerebellum of zebrafish affected levels of the enzyme CaMKII. 
      • Levels of CaMKII were seen to increase in the Purkinje neurons in the cerebellum. 

    About Zebrafish

    • Scientific Name: Danio rerio
    • It is a tropical freshwater fish belonging to the minnow family (Cyprinidae) of the order Cypriniformes.
    • Habitat/Range: Native to rivers and streams of South Asia.
    • Features
      • It is a popular aquarium fish.
      • It is about 4 cm long and has dark-blue and silvery longitudinal stripes.
    • IUCN Red List Status: Least concerned.

    (Image Courtesy: BBC)

    Source: TH