@article{fdi:010057044, title = {{C}haracterization of {G}racilaria vieillardii ({G}racilariaceae, {R}hodophyta) and molecular phylogeny of foliose species from the western {P}acific {O}cean, including a description of {G}. taiwanensis sp. nov.}, author = {{L}in, {S}. {M}. and {L}iu, {L}. {C}. and {P}ayri, {C}laude}, editor = {}, language = {{ENG}}, abstract = {{G}racilaria vieillardii has been widely reported from the western {P}acific {O}cean; however, these records remained provisional due to the absence of morphological details for material from the type locality, {N}ew {C}aledonia. {T}o clarify the taxonomic position of {G}. 'vieillardii' from {T}aiwan and the interspecific relationships of the foliose {G}racilaria species from the western {P}acific {O}cean, we used rbc{L} sequences and inferred their molecular phylogeny along with that of other foliose species from around the world. {F}oliose species with textorii-type spermatangial conceptacles, collected from the western {P}acific {O}cean, were analyzed here along with foliose species from {S}outh {A}frica. {T}hese formed a natural assemblage. {I}n contrast, those foliose species with textorii-type spermatangial conceptacles, which were collected from the tropical {A}tlantic {O}cean, did not form a monophyletic clade. {W}e described {G}racilaria taiwanensis sp. nov., based upon a foliose species with marginal teeth, that was previously recorded from {T}aiwan as {G}. vieillardii {O}ur molecular analyses indicated that {G}. taiwanensis was sister to the clade of {G}. vieillardii from the type locality, {N}ew {C}aledonia; however, they differed by 28 base pairs among 1390 aligned nucleotides of the rbc{L} gene. {G}racilaria taiwanensis was characterized by its palmate, prostrate thallus and thicker cystocarp floor (180-300 mu m thick). {I}n contrast, {G}. vieillardii possessed bushy, slightly prostrate thalli, and the cystocarp floor was not as thick (100-150 mu m thick).}, keywords = {{C}arposporophyte development ; {F}oliose ; {G}racilaria vieillardii ; {G}racilaria taiwanensis sp nov. ; {M}olecular phylogeny ; {N}ew {C}aledonia ; rbc{L} ; {T}aiwan ; {W}estern {P}acific {O}cean}, booktitle = {}, journal = {{P}hycologia}, volume = {51}, numero = {4}, pages = {421--431}, ISSN = {0031-8884}, year = {2012}, DOI = {10.2216/11-90.1}, URL = {https://www.documentation.ird.fr/hor/fdi:010057044}, }