A new species of (Rhodymeniales,Rhodophyta) from the Galápagos Islands

Schneider, Craig W.; Lane, Christopher E.

doi:10.1016/s0181-1568(00)00112-4

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…Currently the genus Botryocladia is generally accepted to include morphologically heterogenous species (Brodie and Guiry 1988;Norris 1989;Fredericq 2003, 2005;Schneider and Lane 2000;Wilkes et al 2006;AfonsoCarrillo et al 2006). Even though molecular studies have begun to reveal more natural groups within the family with the creation of the genus Irvinea and subsequent transfers (Saunders et al 1999, Wilkes et al 2006, species diversity in the Rhodymeniaceae remains under-estimated.…”

Section: Discussionmentioning

confidence: 99%

Taxonomic transfer of the red algae Chrysymenia enteromorpha and C. wrightii to the genus Botryocladia (Rhodymeniaceae, Rhodymeniales)

Schmidt¹,

Lozada-Troche

Ballantine³

et al. 2017

Phytotaxa

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Genera in the Rhodymeniaceae Harvey that have a hollow thallus lacking diaphragms have been placed in Chrysymenia J. Chrysymenia has traditionally been defined by a lack of internal rhizoids and with the only solid portion of the thallus limited to the stipe. Botryocladia has been differentiated from Chrysymenia by the presence of larger, solid axes. Our results suggest that on the basis of vegetative characters alone, the true Chrysymenia clade contains specimens that exclusively produce gland cells directly on unmodified medullary cells, whereas Botryocladia and Cresia may or may not cut off gland cells from modified gland-supporting medullary cells. On the basis of comparative rbcL and SSU sequence analyses and morphological data, the hollow, gelatinous species Chrysymenia enteromorpha Harvey from the Gulf of Mexico and Caribbean Sea, and Chrysymenia wrightii Harvey described from the northwest Pacific Ocean are newly transferred to the genus Botryocladia as Botryocladia enteromorpha (Harvey) comb. nov. and B. wrightii (Harvey) comb. nov., respectively.

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Section: Discussionmentioning

confidence: 99%

Taxonomic transfer of the red algae Chrysymenia enteromorpha and C. wrightii to the genus Botryocladia (Rhodymeniaceae, Rhodymeniales)

Schmidt¹,

Lozada-Troche

Ballantine³

et al. 2017

Phytotaxa

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“…The specimen on GenBank (AF385664) however is clearly a misidentification of G. paxillata. Lastly, a sequence mislabelled as G. huangii S.-M.Lin & De Clerck (DQ296121) on GenBank was collected from South Africa and is correctly listed as G. denticulata F.Schmitz ex Mazza in Lin & De Clerck (2006). Gracilaria huangii (AY737438-40) is indeed distinct from G. denticulata but does not occur in South Africa.…”

Section: Topotype Barcodes and Distribution Implicationsmentioning

confidence: 99%

A taxonomically informed DNA reference library to facilitate future biodiversity assessments and monitoring: a case study using seaweeds along a tropical-temperate transition zone in South Africa

Reddy,

du Plessis,

Anderson

et al. 2023

Preprint

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The role of seaweeds in the blue bioeconomy has stimulated research efforts around the world but proper species identification and biodiversity assessments, remain a challenge. The South African coast hosts the confluence of the Indian Ocean and Atlantic Ocean, creating a dynamic evolutionary environment that has over time yielded a rich diversity of seaweeds with the highest seaweed diversity occurring along the Agulhas Marine Province. Although South Africa harbours one of the richer seaweed floras in the world, only 24% of the known species are represented by DNA barcodes. We therefore initiated the construction of a taxonomically guided DNA reference library for seaweeds in South Africa with the aim of continuously adding to it in the future. To do this, a seaweed biodiversity survey of the Rhodophyta occurring along a temperate-tropical biogeographic transition zone situated within the Agulhas Marine Province (AMP) in South Africa was carried out. Seaweeds were identified in the field using available field or taxonomic guides and herbarium vouchers were prepared. Subsamples were preserved for DNA analyses and three DNA barcodes (LSU D2-D3; rbcL-3P; COI 5P) were amplified. Sequences were verified on BLAST and preliminary phylogenetic analyses or comparison with the literature were carried out where necessary. A total of 220 barcodes was generated for 88 species and one species variety, including 17 species from or near their type localities and eight generitypes. Novel barcodes were generated for 73 species, nearly half of which were species endemic to Southern Africa. In addition, 21 taxa representing new, potentially new, or reinstated species and at least two new genera were identified as well as one new distribution recorded, all of which require further study. This study significantly adds to the foundational biodiversity knowledge of the South African seaweed flora and highlights new avenues for further research.

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“…While it has been known that the grouping of entities currently regarded as the genus Botryocladia may be an artificial assemblage (Brodie & Guiry 1988;Saunders et al 1999;Schneider & Lane 2000) this study shows that by combining traditional techniques with molecular data a better understanding of the generic limits can be achieved. Further analyses, including reproductive morphology and molecular data, of other taxa will likely result in more species being added to Ininea and a better understanding of the relationship between these two genera being achieved.…”

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confidence: 99%

Vegetative morphology and rbcL phylogeny of some members of the genera Botryocladia and Irvinea (Rhodymeniaceae, Rhodophyta)

2006

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2006. Vegetative morphnlogy and rh(\. phylogeny of some incTiibers of ihe genorii Boiryochiiiiu ;iniJ In-iiu-a (Rhodymeniaceae. Rhodophyla), Phy(olo};ia 43: 481-494.Bou-MKiiulia is a genus of marine red algae (Rhodophyta) generally found in tropical, suhtropical and warm leinperate seas. There are currently 35 described species, bui the laxonomic status of many of these remains confu.scd. Recently, the genus was split into two genera, with the new genus, Irvinea. descrihed based on tnorphological and molecular evidence. Only one species. /. arciri'imu. is currently assigned to the newer genus. For this study, a number of cultured BotryocUidkt and h-viiH-a strains from ihe Mediterranean and Caribbean were examined. Eacb wa.s examined microscopically and tbe key teiitures currently used for identification were evaluated. Up to 1277 bp ofthe rlxL gene was PCR amplified for each isolate and directly sequenced. The. molecular data confirm that the species currently considered as Boiryticladia do not form a nionophvlctic group. Hciryoclndia hoeri-t'seiiii grouped in a clade with /, urdreiimi with the remaining Botryoihidia species in a separate grouping. We propose tbe transfer of Ii. hoer^esenii lo the genus Irvineu on the basis ot the molecular and [norphological data. Morphological and molecular dala for the otber species examined were also evaluated although little correlation between ihe morphological features and ihe r/?rL dala was observed. The taxonomic uliiiiy of some of the morphological features is called into doubt, although clear differences hetween the genera Boiryodadia and Iniiiea can be seen. In addition to ihc morphological features currently regarded as important intergeneric characters, the presence of branched vesicles as an indicator for species of trxiiwti should be added. Kl •. W{iRt)s: Botryocladiu. Irvirwii. Molecular taxonomy, rbcL. Rhodymeniaceae. Rhodophyta. Systematics 481 482 Phycologia. Vol. 45 I5K ZOOfi Tabk I. Isolates from the NUl, Galway Marine Algal Ctiltiirc Collci-tion and si-qLienecs fnnn GenBank used in Ihe rha.\ccinensii B. mimoica fl. occiJentiilis B. ociiJcnla/ix B. ftfcidcntalis B. papt'nJii.YsiiiiKi B-pyiiformis B. sbimksii B. skotfsbi'rRii Biitryo<-laditi sp. (VI) B. spinIIlife-Id B. uviiriiiides Ct'ra toclictyon spong iimiim CordylecUidia crerta Epyitwnia lapi'nsi.i Gustrocloniinn siibtirlicidatum Graieloupia filicina

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A new species of (Rhodymeniales,Rhodophyta) from the Galápagos Islands

Cited by 6 publications

References 11 publications

Taxonomic transfer of the red algae Chrysymenia enteromorpha and C. wrightii to the genus Botryocladia (Rhodymeniaceae, Rhodymeniales)

Taxonomic transfer of the red algae Chrysymenia enteromorpha and C. wrightii to the genus Botryocladia (Rhodymeniaceae, Rhodymeniales)

A taxonomically informed DNA reference library to facilitate future biodiversity assessments and monitoring: a case study using seaweeds along a tropical-temperate transition zone in South Africa

Vegetative morphology and rbcL phylogeny of some members of the genera Botryocladia and Irvinea (Rhodymeniaceae, Rhodophyta)

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