Dispersal Between Isolated Seamount Populations - A Molecular Approach.
Final rept. 1 Jun 92-31 May 96,
WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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This AASERT has supported a graduate student, Ewann Agenbroad, in her studies of population genetics, gene flow and phylogeny of seamount corals. The project was initially organized around three Pisces IV submersible cruises operated through NOAAs Hawaiian Underwater Research Laboratory, scheduled for summers of 1993, 1994 and 1995. The 1993 cruise was completed, allowing us to collect multiple individuals of more than 20 coral species from three seamounts in the Northern Hawaiian Ridge. These initial samples allowed us to conduct pilot studies on genetic variation in the mitochondrial 16S rRNA among individuals and species from these three seamounts. Although variation within species was low in this genomic region, further studies are underway using other, more variable regions in the target species Narella nuttingi. The species-level variation in 16S rRNA, however, was very intriguing, and spawned a promising phylogenetic study.
- Biological Oceanography