Population Structure and Phylogeography of Macrobrachium Species on the Hawaiian ArchipelagoPublic
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Macrobrachium is a genus of freshwater prawns with species found around the world. Several Macrobrachium species are present on the Hawaiian archipelago, including the native M. grandimanus and the recently introduced M. lar. The mitochondrial COI gene was sequenced and analyzed from samples of the Hawaiian populations of these two species. Data analysis suggested significant differences between species’ haplotype networks. Data for M. lar supported expectations for a recent founder population. Data for M. grandimanus suggested gene flow between islands, as well as a possible recent bottleneck event. Both species exhibited an overall lack of genetic diversity. However, due to the small sample size of this study, further research is required to confirm these conclusions.
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