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Science 27 April 1984:
Vol. 224. no. 4647, pp. 413 - 415
DOI: 10.1126/science.224.4647.413
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Articles

Phenotypic Variation Within Histocompatibility-Defined Clones of Marine Sponges

JOSEPH E. NEIGEL 1 and GEORGE P. SCHMAHL 2

1 Department of Molecular and Population Genetics, University of Georgia, Athens 30602
2 Department of Zoology, University of Georgia

Nongenetic phenotypic variation can be identified by its occurrence within genetically uniform clones. A histocompatibility bioassay of clonal identity was used to ascertain the extent of phenotypic variation within natural clones of two species of marine sponges. Multiple morphological forms of the sponge Aplysina fistularis were found to occur within single clones, indicating a nongenetic polymorphism. In contrast, a genetic basis is suggested for a polymorphism of Aplysina cauliformis; within single clones of this species, individuals were uniform in color and morphology.

Submitted on November 4, 1983
Accepted on February 14, 1984


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Accumulation in Marine Sponge Grafts of the mRNA Encoding the Main Proteins of the Cell Adhesion System.
X. Fernandez-Busquets, D. Gerosa, D. Hess, and M. M. Burger (1998)
J. Biol. Chem. 273, 29545-29553
   Abstract »    Full Text »    PDF »
Graft Compatibility and Clonal Identity in Invertebrates.
R. K. GROSBERG, W. R. RICE, and S. R. PALUMBI (1985)
Science 229, 487-488
   PDF »
Graft Compatibility and Clonal Identity in Invertebrates.
J. NEIGEL (1985)
Science 229, 488-489
   PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)