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Full-Text Articles in Marine Biology
The Evolution Of Bioluminescence Across The Shrimp Family Sergestidae: A Genomic Skimming And Phylogenetic Approach, Charles G. Golighty Iii
The Evolution Of Bioluminescence Across The Shrimp Family Sergestidae: A Genomic Skimming And Phylogenetic Approach, Charles G. Golighty Iii
FIU Electronic Theses and Dissertations
The family Sergestidae provide a unique system for studying the evolution of bioluminescence, with species possessing one of three distinct forms of photophores. This study capitalizes on molecular data to construct a genus-level phylogeny of sergestid shrimp. “Genome skimming” was implemented, capturing mitochondrial genomic data across 19 species. Additional individuals were incorporated through Sanger sequencing of four partial gene regions. The -sergestes group of genera was recovered as non-monophyletic, with the -sergia group of genera being recovered as monophyletic. Ancestral state reconstructions of light organ type indicate the organs of Pesta photophore is the ancestral state for the …
Connections In The Underworld: A Morphological And Molecular Study Of Diversity And Connectivity Among Anchialine Shrimp., Robert Eugene Ditter
Connections In The Underworld: A Morphological And Molecular Study Of Diversity And Connectivity Among Anchialine Shrimp., Robert Eugene Ditter
FIU Electronic Theses and Dissertations
This research investigates the distribution and population structure of crustaceans, endemic to anchialine systems in the tropical western Atlantic focusing on cave-dwelling shrimp from the family Barbouriidae. Taxonomic and molecular tools (genetic and genomic) are utilized to examine population dynamics and the presence of phenotypic hypervariation (PhyV) of the critically endangered species Barbouria cubensis (von Martens, 1872). The presence of PhyV and its geographic distribution is investigated among anchialine populations of B. cubensis from 34 sites on Abaco, Eleuthera, and San Salvador, Bahamas. Examination of 54 informative morphological characters revealed PhyV present in nearly 90% (n=463) of specimens with no …