Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/22621

Linckia multifora (Echinodermata: Asteroidea) in Rarotonga, Cook Islands: Reproductive Mechanisms and Ecophenotypes.

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Title: Linckia multifora (Echinodermata: Asteroidea) in Rarotonga, Cook Islands: Reproductive Mechanisms and Ecophenotypes.
Authors: Crawford, Terry J.
Crawford, Bruce J.
LC Subject Headings: Natural history--Periodicals.
Science--Periodicals
Natural history--Pacific Area--Periodicals.
Issue Date: Jul 2007
Publisher: Honolulu, University of Hawaii Press
Citation: Crawford TJ, Crawford BJ. Linckia multifora (Echinodermata: Asteroidea) in Rarotonga, Cook Islands: Reproductive Mechanisms and Ecophenotypes. Pac Sci 61(3): 371-382.
Series/Report no.: vol. 61, no. 3
Abstract: In Rarotonga, Linckia multifora (Lamarck) exists in two forms: a blue gray type that is found on the reef intertidally and a red form that is found subtidally. Both types reproduce asexually by regeneration of autotomized arms, as well as sexually, but the relative potential for sexual reproduction varies greatly between these different sites. In the laboratory, reciprocal crosses of the blue gray intertidal form and the red subtidal form developed as successfully as the controls and were indistinguishable in morphology. In addition, both the blue gray intertidal form and the red subtidal form contain two different classes of haplotypes of the mitochondrial gene cytochrome oxidase subunit I (COI), which exhibit 12 fixed differences. These results suggest that L. multifora of Rarotonga has a dual origin and that the two different forms seen in the two environments belong to a single interbreeding population and may represent ecophenotypes
Description: v. ill. 23 cm.
Quarterly
Pages/Duration: 13 p.
URI/DOI: http://hdl.handle.net/10125/22621
ISSN: 0030-8870
Appears in Collections:Pacific Science, Volume 61, Number 3, 2007



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