Dissertation/Thesis Abstract

Systematics of Brown Macroalgae (Phaeophyceae) with an Emphasis on Taxa from the Western Atlantic and Gulf of Mexico
by Camacho Hadad, Olga M., Ph.D., University of Louisiana at Lafayette, 2016, 232; 10246846
Abstract (Summary)

Brown macroalgae (Class Phaeophyceae, Phylum Ochrophyta) is an important component of a great variety of marine ecosystem such as coral reefs, seagrass beds, mangroves, and rocky shores. The phylogeny of brown algae (Phaeophyceae) is less well-studied than that of the red (Rhodophyta) and green (Chlorophyta) seaweeds. This discrepancy may be due to the fact that obtaining DNA of sufficient quality from brown algae is widely regarded as challenging due to polysaccharides and polyphenols and allelopathic compounds present in the cell wall of brown algae. Despite this, in my Ph.D. dissertation, I wanted to address different molecular-based systematic revisions of some brown macroalgae, for example, the intriguing genera Sargassum, Lobophora, and Syrigoderma in the western Atlantic and Gulf of Mexico before and after the 2010 Macondo oil spill. This study provides the recognition of multiple species new to science, new distributional records for the region, and revised taxonomic concepts.

Indexing (document details)
Advisor: Fredericq, Suzanne
Commitee: Albert, James, Felder, Darryl L., Freshwater, D. Wilson, Norris, James N.
School: University of Louisiana at Lafayette
Department: Biology
School Location: United States -- Louisiana
Source: DAI-B 78/12(E), Dissertation Abstracts International
Subjects: Biology, Molecular biology
Keywords: Brown algae, DNA, Gulf of Mexico, Lobophora, Sargassum, Systematics
Publication Number: 10246846
ISBN: 978-0-355-11322-8
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