Kin or self-recognition? Colonial fusibility of the bryozoan Celleporella hyalina

Hughes, Roger N.; Manríquez, Patricio H.; Morley, Simon ORCID:; Craig, Sean F.; Bishop, John D.D.. 2004 Kin or self-recognition? Colonial fusibility of the bryozoan Celleporella hyalina. Evolution and Development, 6 (6). 431-437.

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We estimated fusion frequency with respect to coancestry in the bryozoan Celleporella hyalina, whose briefly planktonic sexually produced larvae settle on algal substrata and proceed to form encrusting colonies by iterative budding. Frequency of fusion between paired colonies growing on an artificial substratum was positively correlated with coefficient of relatedness, with allorecognition ability increasing during the early stages of colonial growth after larval settlement. Parents repressed the growth of F-1 progeny with which they had fused. The results are concordant with the Feldgarden-Yund model of selection for self-recognition, which regards fusion with kin as an inevitable source of error whose cost diminishes with increasing relatedness. Contrary to fusion compatibility, gametic compatibility is negatively correlated with coancestry, indicating a need for further research on the possibility of common or linked genetic control that has opposite effect at somatic and gametic levels.

Item Type: Publication - Article
Digital Object Identifier (DOI):
Programmes: BAS Programmes > Other
ISSN: 1520-541X
NORA Subject Terms: Marine Sciences
Biology and Microbiology
Date made live: 18 Jan 2012 14:23 +0 (UTC)

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