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Journal of Heredity Advance Access published online on September 6, 2006
Journal of Heredity, doi:10.1093/jhered/esl018
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© The American Genetic Association. 2006. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.
Received February 7, 2006
Accepted July 6, 2006

Article

Gene Diversity and Mode of Reproduction in the Brooded Larvae of the Coral Heteroxenia fuscescens

Yaron Fuchs 1, Jacob Douek 2, Baruch Rinkevich 2, and Rachel Ben-Shlomo 3 *

1 From the Department of Biology, University of Haifa-Oranim, Tivon 36006, Israel; Yaron Fuchs is now at the Department of Biology, Technion--Israel Institute of Technology, Haifa 32000, Israel
2 From the National Institute of Oceanography, Israel Oceanographic and Limnological Research, Tel Shikmona, PO Box 8030, Haifa 31080, Israel
3 From the Department of Biology, University of Haifa-Oranim, Tivon 36006, Israel

* To whom correspondence should be addressed.
Rachel Ben-Shlomo, E-mail: ekly{at}research.haifa.ac.il


  Abstract

The soft coral Heteroxenia fuscescens is a common shallow-reef brooding species in the Red Sea. By means of amplified fragment length polymorphism markers, we studied modes of reproduction of planulae (sexual vs. vegetative) and levels of gene diversity of a population residing in the northern Gulf of Eilat, Red Sea. Eighty-nine larvae were collected from 9 mother colonies at 3 locations over a distance of 5 km. Amplifications revealed 221 putative loci, of which 81.4% were polymorphic; gene diversity was 0.29, allowing good identification of individual genotypes. No 2 identical DNA samples were present, so no asexual reproduction of planulae was indicated. The sampled planulae did not exhibit any genetic structure characteristic to a specific location, indicating one large gene pool and extensive gene flow among H. fuscescens specimens inhabiting the northern Gulf of Eilat.


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