About: Pedomorphosis   Sponge Permalink

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In developmental biology, pedomorphosis (also spelled paedomorphosis) or juvenification is a phenotypic and/or genotypic change in which the adults of a species retain traits previously seen only in juveniles. Peramorphosis is change in the reverse direction. Pedomorphosis was first proposed by Walter Garstang in 1922. The underlying mechanisms for this include heterochrony. There are several kinds of pedomorphism which may appear independently or in combination:

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  • Pedomorphosis
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  • In developmental biology, pedomorphosis (also spelled paedomorphosis) or juvenification is a phenotypic and/or genotypic change in which the adults of a species retain traits previously seen only in juveniles. Peramorphosis is change in the reverse direction. Pedomorphosis was first proposed by Walter Garstang in 1922. The underlying mechanisms for this include heterochrony. There are several kinds of pedomorphism which may appear independently or in combination:
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abstract
  • In developmental biology, pedomorphosis (also spelled paedomorphosis) or juvenification is a phenotypic and/or genotypic change in which the adults of a species retain traits previously seen only in juveniles. Peramorphosis is change in the reverse direction. Pedomorphosis was first proposed by Walter Garstang in 1922. The underlying mechanisms for this include heterochrony. There are several kinds of pedomorphism which may appear independently or in combination: * Neoteny, in which somatic (or physical) development is slowed, resulting in a sexually mature juvenile or larval form. * Progenesis, in which development is halted before full maturity. * Postdisplacement, in which the start of development is delayed.
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