Acrosymphytaceae, a New Family in the Order Gigartinales Sensu Lato (Rhodophyta)

Lindstrom, Sandra C.

doi:10.1002/j.1996-8175.1987.tb03924.x

Cited by 10 publications

(2 citation statements)

References 9 publications

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“…2011). In the Florideophyceae, these features are also observed in the Peyssonneliales and Acrosymphytales (Kylin 1925; Lindstrom 1987; Kato & Masuda 2000), but, within the Gigartinales, they are unique to the DGR complex. Among the Gigartinales, the Ptilocladiopsidaceae, Kallymeniaceae and Etheliaceae were phylogenetically close to the DGR complex.…”

Section: Discussionmentioning

confidence: 97%

“…The DGR complex shares (i) separate carpogonial branches and auxiliary cell branches (non-procarpic) that are more than two-celled and distinct from vegetative branches and (ii) fusion of the carpogonium with other cells of the carpogonial branch prior to formation of the secondary connecting filaments (Wiseman 1977;Shepley & Womersley 1983;Moe 1985;Payo et al 2011). In the Florideophyceae, these features are also observed in the Peyssonneliales and Acrosymphytales (Kylin 1925;Lindstrom 1987;Kato & Masuda 2000), but, within the Gigartinales, they are unique to the DGR complex. Among the Gigartinales, the Ptilocladiopsidaceae, Kallymeniaceae and Etheliaceae were phylogenetically close to the DGR complex.…”

Section: Non-monophyletic Dumontiaceaementioning

confidence: 99%

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Taxonomic study of the polyphyletic Dudresnaya (Dumontiaceae, Florideophyceae) with descriptions of Dudresnaya ryukyuensis sp. nov. and two new genera, Himehibirhodia and Nudresdaya

Hoshino,

Wakeman,

Kato

et al. 2024

Phycological Research

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SUMMARYThe red algal genus Dudresnaya (Dumontiaceae, Gigartinales) has traditionally been a morphologically well‐defined taxon, but its molecular phylogeny has rarely been studied. To examine the phylogenetic relationships among Dudresnaya species, we generated new partial sequences of mitochondrial cox1, chloroplast rbcL and nuclear 28S rRNA genes from an undescribed Dudresnaya species from Okinawa Island, Japan, alongside five additional described species. Our phylogenetic analyses show that Dudresnaya is genetically diverse and polyphyletic. Based on molecular phylogeny and morphological data, we describe the Okinawan Dudresnaya as a new species, Dudresnaya ryukyuensis, and transferred Dudresnaya minima and Dudresnaya littleri, which were phylogenetically and morphologically distinct from the genuine Dudresnaya, to the new genera Himehibirhodia and Nudresdaya, respectively. Our phylogenetic analyses also showed that the Dumontiaceae is not a monophyletic group including the Gainiaceae and Rhizophyllidaceae (DGR complex). Considering that the DGR complex exhibits female reproductive structures and their post‐fertilization development that are similar to each other, the DGR complex appears to be recognized as the Dumontiaceae sensu lato.

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Section: Discussionmentioning

confidence: 97%

Section: Non-monophyletic Dumontiaceaementioning

confidence: 99%

Taxonomic study of the polyphyletic Dudresnaya (Dumontiaceae, Florideophyceae) with descriptions of Dudresnaya ryukyuensis sp. nov. and two new genera, Himehibirhodia and Nudresdaya

Hoshino,

Wakeman,

Kato

et al. 2024

Phycological Research

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PHYLOGENY OF THE DUMONTIACEAE (GIGARTINALES, RHODOPHYTA) AND ASSOCIATED FAMILIES BASED ON SSU rDNA AND INTERNAL TRANSCRIBED SPACER SEQUENCE DATA

Tai

Lindstrom

Saunders

2001

Journal of Phycology

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Small subunit (SSU) rDNA was sequenced for 25 species in 19 genera of the Gigartinales (Rhodophyta). As well, the internal transcribed spacer (ITS) region was sequenced, and a data matrix of 36 morphological characters was constructed for 16 species of Dumontiaceae. Phylogenetic trees were calculated from a multiple alignment of the SSU sequence data to infer relationships between species of Dumontiaceae and other gigartinalean taxa. The SSU analysis produced a polyphyletic Dumontiaceae. Notably, Acrosymphyton failed to associate with the included Gigartinales, let alone the Dumontiaceae, supporting an earlier proposal to remove it to a new family. The analyses were equivocal about the phylogenetic affinities of Dudresnaya, which clustered with the Kallymeniaceae, and the affinities of the Indo‐West Pacific Gibsmithia, Kraftia, and Dasyphloea, the last‐mentioned clustering with the Antarctic Gainiaceae, and these four taxa with Portieria (Rhizophyllidaceae). Further investigations are necessary to resolve relationships among these taxa. Rhodopeltis, a genus recently moved to the Dumontiaceae from the Polyideaceae, showed a weak association with the remaining northern Dumontiaceae. The final group consisted of cold‐temperate Northern Hemisphere species. Phylogenetic analyses using a combination of SSU, ITS, and morphological data within this clade produced two strongly supported clades, a Dilsea/Neodilsea clade and a Cryptosiphonia/Dumontia clade. Dilsea is derived from a paraphyletic Neodilsea and may itself be polyphyletic. Atlantic and Pacific isolates of Dumontia contorta clearly showed sufficient divergence to warrant recognition as distinct species, and Dumontia alaskana, sp. nov. is proposed for the Pacific species.

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New insights into post-fertilization in Dudresnaya (Gigartinales, Rhodophyta) and Acrosymphyton (Acrosymphytales, Rhodophyta)

Rodríguez‐Prieto

Morcillo

2023

Phycologia

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Acrosymphytaceae, a New Family in the Order Gigartinales Sensu Lato (Rhodophyta)

Abstract: Summary The monogeneric family Acrosymphytaceae is proposed on the basis of unique female reproductive structures and post‐fertilization events. The family is included in the order Gigartinales sensu lato.

Cited by 10 publications

References 9 publications

Taxonomic study of the polyphyletic Dudresnaya (Dumontiaceae, Florideophyceae) with descriptions of Dudresnaya ryukyuensis sp. nov. and two new genera, Himehibirhodia and Nudresdaya

Taxonomic study of the polyphyletic Dudresnaya (Dumontiaceae, Florideophyceae) with descriptions of Dudresnaya ryukyuensis sp. nov. and two new genera, Himehibirhodia and Nudresdaya

PHYLOGENY OF THE DUMONTIACEAE (GIGARTINALES, RHODOPHYTA) AND ASSOCIATED FAMILIES BASED ON SSU rDNA AND INTERNAL TRANSCRIBED SPACER SEQUENCE DATA

New insights into post-fertilization in Dudresnaya (Gigartinales, Rhodophyta) and Acrosymphyton (Acrosymphytales, Rhodophyta)

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