Regrowth of the stalk of the sea lily, Metacrinus rotundus (Echinodermata: Crinoidea).

  title={Regrowth of the stalk of the sea lily, Metacrinus rotundus (Echinodermata: Crinoidea).},
  author={Hiroaki Nakano and Taku Hibino and Yuko Hara and Tatsuo Oji and Shonan Amemiya},
  journal={Journal of experimental zoology. Part A, Comparative experimental biology},
  volume={301 6},
Sea lilies are critical to understanding the evolution of the echinoderm body plan, because they are the only extant group whose adults possess a stalk, a prevalent feature in the radiation of a number of primitive echinoderm lineages. Extensive crown regeneration ability has been reported in Metacrinus rotundus, but the regenerative potential of the stalk has never been determined in any species of sea lilies. In this study, we show that M. rotundus whose stalks have been completely excised… CONTINUE READING

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