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MOLECULAR SYSTEMATIC ANALYSES INDICATE THAT THE ENIGMATIC APOPHLAEA IS A MEMBER OF THE HILDENBRANDIALES (RHODOPHYTA, FLORIDEOPHYCIDAE)
Author(s) -
Saunders Gary W.,
Bailey J. Craig
Publication year - 1999
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1046/j.1529-8817.1999.3510171.x
Subject(s) - biology , extant taxon , ribosomal dna , sequence (biology) , evolutionary biology , ribosomal rna , botany , genetics , phylogenetics , gene
Nuclear small‐subunit (SSU) ribosomal DNA sequences were determined for Apophlaea lyallii Hooker f. et Harvey from New Zealand and an isolate of Hildenbrandia rubra (Sommerfelt) Meneghini from France. These data, in addition to SSU sequences representative of all the major florideophyte lineages, were used in molecular systematic investigations to confirm inclusion of Apophlaea in the Hildenbrandiales. Anatomical features that serve to unite Apophlaea and Hildenbrandia are discussed to buttress this result. Furthermore, our analyses support recognition of the Hildenbrandiales as sister to all other extant florideophyte lineages studied to date. An anomalous result positioning the SSU sequence generated herein for Hildenbrandia rubra closer to Apophlaea lyallii than to a previously published sequence for Hildenbrandia rubra requires further investigation.