<i>Ptilophora leliaertii</i> and <i>Ptilophora coppejansii</i>, two new species of Gelidiales (Rhodophyta) from South Africa

Tronchin, Enrico M.; Clerck, Olivier De; Freshwater, D. Wilson; Bolton, John J.; Anderson, R. J.

doi:10.1080/09670260410001721491

Cited by 11 publications

(11 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, P. coppejansii has short, closely spaced pinnae with concave, flattened tips, and occurs at Protea Banks, KwaZulu‐Natal Province, South Africa (Tronchin et al. , ). Ptilophora prolifera has flattened axes and spatulate tetrasporangial sori arising from surface proliferations, and occurs in western Australia (Womersley ).…”

Section: Discussionmentioning

confidence: 99%

“…Characters for identifying species are size, branching patterns and orders, presence or absence of a midrib, and shape and position of tetrasporangia and cystocarps (Norris , , Tronchin et al. , , ). However, as so often the case, even specialists find it difficult to identify species on the basis of morphology alone; molecular tools are essential.…”

mentioning

confidence: 99%

“…Although eight species have been reported from southeast Africa by Tronchin and colleagues (Tronchin et al. , , ,b), Ptilophora pterocladioides (originally described as a new species of Beckerella but the author changed the name to Ptilophora in a footnote during publication) is the sole species reported from Madagascar to date (Andriamampandry , Silva et al. ).…”

mentioning

confidence: 99%

“…Ptilophora is currently characterized by fibrous holdfasts, complanate axes with compound pinnae, with or without a midrib on proximal parts, proliferations on the surface of axes, a four layered structure (outer cortex, rhizine, inner cortex, and medulla), and reproductive structures on terminal branches. Characters for identifying species are size, branching patterns and orders, presence or absence of a midrib, and shape and position of tetrasporangia and cystocarps (Norris 1987, 1992, Tronchin et al 2003, 2004, 2006a. However, as so often the case, even specialists find it difficult to identify species on the basis of morphology alone; molecular tools are essential.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Phylogenetic relationships and biogeography of Ptilophora (Gelidiales, Rhodophyta) with descriptions of P. aureolusa, P. malagasya, and P. spongiophila from Madagascar

Boo

Gall

Hwang

et al. 2018

Journal of Phycology

View full text Add to dashboard Cite

The genus Ptilophora currently includes 16 species occurring mostly in subtidal habitats of the Indo-Pacific Ocean, but its global diversity and biogeography are poorly understood. We analyzed mitochondrial cox1, plastid rbcL and plastid psbA sequences from specimens collected in southern Madagascar during the 2010 Atimo Vatae expedition and studied their morphologies. Both morphological and molecular data sets demonstrated the presence of five species in southern Madagascar: Ptilophora hildebrandtii, P. pterocladioides, and three new species described here, P. aureolusa, P. malagasya, and P. spongiophila. Ptilophora aureolusa is distinguished by its compound pinnae with uniformly spaced pinnules. Ptilophora malagasya has an indistinct midrib and irregularly spaced pinnules. Ptilophora spongiophila, heavily coated with sponges, has cylindrical to flattened main axes, lateral and surface proliferations, and spatulate tetrasporangial sori. The species of Ptilophora found in Madagascar are endemic, except P. hildebrandtii, which also occurs in eastern Africa. Ptilophora comprises four phylogenetic groups that map to eastern Australia, Japan, western Australia/Southeast Asia/Madagascar/eastern Africa, and Madagascar/eastern Africa/Aegean Sea. Biogeographical analysis revealed that the ancestor of Ptilophora originated in Australia, but most of the species radiated from Madagascar.

show abstract

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Phylogenetic relationships and biogeography of Ptilophora (Gelidiales, Rhodophyta) with descriptions of P. aureolusa, P. malagasya, and P. spongiophila from Madagascar

Boo

Gall

Hwang

et al. 2018

Journal of Phycology

View full text Add to dashboard Cite

show abstract

“…Several Ptilophora species (Gelidiaceae) as well as Epiglossum smithiae and Osmundaria prolifera (both Rhodomelaceae) are usually coated in sponge tissue, the extent and thickness of which can vary considerably (Norris, 1991;L.E. Phillips, 2002;Tronchin et al, 2004Tronchin et al, , 2006. In these cases the establishment of the sponge is apparently facilitated by proliferations on the surface of the alga, which presumably promote attachment.…”

Section: Multiple Origins Of Sponge Associationsmentioning

confidence: 99%

Spongophloea, a new genus of red algae based onThamnocloniumsect.NematophoraeWeber-van Bosse (Halymeniales)

Huisman

Clerck

Reine

et al. 2011

European Journal of Phycology

View full text Add to dashboard Cite

The red algal order Halymeniales contains a relatively high percentage of sponge-associated taxa. These species are predominantly classified in two genera, Thamnoclonium and Codiophyllum (and to a lesser extent Carpopeltis), and are chiefly distributed in temperate waters along the South African and Australian coasts. Three rare species of Thamnoclonium (T. tissotii, T. treubii and T. procumbens), however, were originally described by Weber-van Bosse from tropical localities in Indonesia, the Philippines and northern Australia. These formed her new Thamnoclonium sect. Nematophorae and differ from typical Thamnoclonium in having a pseudoparenchymatous medulla in vegetative tissue and in the production of moniliform chains of cells from the cortex. Recent collections of T. tissotii from Western Australia included tetrasporangial and cystocarpic specimens, the latter previously unrecorded for the section. Phylogenetic analyses of rbcL sequence data generated from these and other specimens revealed that the genus Thamnoclonium is presently polyphyletic. Although the phylogenetic tree was not completely resolved, sponge-algal associations in the Halymeniales seem to have evolved independently at least four times. Specimens of T. tissotii formed a sister relationship with Codiophyllum. Thus, both morphological and DNA sequence analyses support the segregation of Thamnoclonium sect. Nematophorae as a new genus, for which the name Spongophloea is proposed, in recognition of its seemingly obligate relationship with the sponge that coats the thallus surface.

show abstract

A novel phylogeny of the Gelidiales (Rhodophyta) based on five genes including the nuclear CesA, with descriptions of Orthogonacladia gen. nov. and Orthogonacladiaceae fam. nov.

Boo

Gall

Miller

et al. 2016

Molecular Phylogenetics and Evolution

View full text Add to dashboard Cite

Although the Gelidiales are economically important marine red algae producing agar and agarose, the phylogeny of this order remains poorly resolved. The present study provides a molecular phylogeny based on a novel marker, nuclear-encoded CesA, plus plastid-encoded psaA, psbA, rbcL, and mitochondria-encoded cox1 from subsets of 107 species from all ten genera within the Gelidiales. Analyses of individual and combined datasets support the monophyly of three currently recognized families, and reveal a new clade. On the basis of these results, the new family Orthogonacladiaceae is described to accommodate Aphanta and a new genus Orthogonacladia that includes species previously classified as Gelidium madagascariense and Pterocladia rectangularis. Acanthopeltis is merged with Gelidium, which has nomenclatural priority. Nuclear-encoded CesA was found to be useful for improving the resolution of phylogenetic relationships within the Gelidiales and is likely to be valuable for the inference of phylogenetic relationship among other red algal taxa.

show abstract

Ptilophora leliaertii and Ptilophora coppejansii, two new species of Gelidiales (Rhodophyta) from South Africa

Cited by 11 publications

References 17 publications

Phylogenetic relationships and biogeography of Ptilophora (Gelidiales, Rhodophyta) with descriptions of P. aureolusa, P. malagasya, and P. spongiophila from Madagascar

Phylogenetic relationships and biogeography of Ptilophora (Gelidiales, Rhodophyta) with descriptions of P. aureolusa, P. malagasya, and P. spongiophila from Madagascar

Spongophloea, a new genus of red algae based onThamnocloniumsect.NematophoraeWeber-van Bosse (Halymeniales)

A novel phylogeny of the Gelidiales (Rhodophyta) based on five genes including the nuclear CesA, with descriptions of Orthogonacladia gen. nov. and Orthogonacladiaceae fam. nov.

Contact Info

Product

Resources

About