A novel mode of retinal regeneration： the merit of a new Xenopus model

<正>Retinal regeneration:The retina is a part of the central nervous system(CNS)and has long attracted neurobiologists as an excellent model organ for the study of CNS regeneration.In classical studies using urodele amphibians like the salamander newt,it has been shown that the retina regenerates after the removal of the whole tissue even in the adulthood.This type of regeneration is considered as an example of"transdifferentiation",since the source of the regenerating retina is the