Molecular genetic identification of crustose representatives of the order Corallinales (Rhodophyta) in Chile

Vidal, Rodrigo; Meneses, Isabel; Smith, Macarena

doi:10.1016/s1055-7903(03)00123-4

Cited by 15 publications

(15 citation statements)

References 49 publications

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“…Since the original description of Mesophyllum , further features were provided as diagnostic, such as the coaxial arrangement of the medulla, contiguous filaments connected by cell fusions rather than secondary pit connections, elongate subepithallial initial cells, outermost walls of epithallial cells rounded to flattened, and the occurrence of simple spermatangial mother cell systems on the floor walls and roof of conceptacle chambers (Adey and Johansen 1972, Cabioch 1972, Adey and Adey 1973, Johansen 1976, Lebednik 1977a, 1978, Woelkerling and Irvine 1986). These characters were not exclusive of this genus, including the coaxial medulla, which was also reported in Clathromorphum and Synarthrophyton (Woelkerling and Harvey 1992, Vidal et al. 2003).…”

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confidence: 57%

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Mesophyllum Sphaericum Sp. Nov. (Corallinales, Rhodophyta): A New Maërl-Forming Species From the Northeast Atlantic1

Peña¹,

Adey²,

Riosmena‐Rodríguez³

et al. 2011

Journal of Phycology

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Mesophyllum sphaericum sp. nov. is described based on spherical maërl individuals (up to 10 cm) collected in a shallow subtidal maërl bed in Galicia (NW Spain). The thalli of these specimens are radially organized, composed of arching tiers of compact medullary filaments. Epithallial cells have flattened to rounded outermost walls, and they occur in a single layer. Subepithallial initials are as long as, or longer than the daughter cells that subtend them. Cell fusions are abundant. Multiporate asexual conceptacles are protruding, mound-like with a flattened pore plate, lacking a peripheral raised rim. Filaments lining the pore canal and the conceptacle roof are composed of five to six cells with straight elongate and narrow cells at their base. Carposporangial conceptacles are uniporate, protruding, and conical. Spermatangial conceptacles were not observed. Molecular results placed M. sphaericum near to M. erubescens, but M. sphaericum is anatomically close to M. canariense. The examination of the holotype and herbarium specimens of M. canariense indicated that both species have pore canal filaments with elongate basal cells, but they differ in number of cells (five to six in M. sphaericum vs. four in M. canariense). Based on the character of pore canal filaments, M. canariense shows similarities with M. erubescens (three to five celled). The outermost walls of epithallial cells of M. canariense are flared compared to the round to flattened ones of M. erubescens, the latter being widely accepted for the genus Mesophyllum. The addition of M. sphaericum as new maërl-forming species suggests that European maërl beds are more biodiverse than previously understood.

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confidence: 57%

“…Harv., despite the fact that both differ in roof conceptacle morphology (flat‐topped vs. sunken pore plate). According Vidal et al. (2003), the genus Mesophyllum is currently undergoing rapid evolution; thus diagnostic features are not well defined.…”

mentioning

confidence: 99%

Mesophyllum Sphaericum Sp. Nov. (Corallinales, Rhodophyta): A New Maërl-Forming Species From the Northeast Atlantic1

Peña¹,

Adey²,

Riosmena‐Rodríguez³

et al. 2011

Journal of Phycology

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“…For example, mitochondrial DNA and plastid DNA have been used to study populations, and for phylogenetic reconstruction, in the Fucales (Coyer et al, 2006;Engel et al, 2008;Dixon et al, 2012) and Dictyotales (De Clerck et al, 2006; Tronholm et al, 2010;Ni-Ni-Win et al, 2011;Silberfeld et al, 2013). The nuclear ITS region is also widely used in plants (Feliner & Rosselló, 2007) and marine organisms (Williams et al, 2002;Toews & Brelsford, 2012) for evolutionary studies and unravelling historical species dispersal, and is also useful in macroalgae (Lee et al, 1998;Vidal et al, 2003;Wang et al, 2008;Draisma et al, 2012) due to higher PCR amplification success rates and higher intraspecific variation (Schoch et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Phylogeography ofPadina boryana(Dictyotales, Phaeophyceae) around the Thai-Malay Peninsula

Wichachucherd

Prathep

Zuccarello

2014

European Journal of Phycology

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The Indo-Pacific Ocean is a biodiversity hotspot for marine organisms. In this area, most of the research has focused on marine animals, such as reef fish, molluscs and other associated coral fauna, but very little has been done on macroalgae. The Thai-Malay Peninsula is an important north-south barrier in this area, which faces two different oceans -the Indian Ocean and the Pacific Ocean. This study aims to investigate genetic distribution patterns of Padina boryana Thivy around the Thai-Malay Peninsula, where it is common. Three DNA marker regions, the mitochondrion-encoded cytochrome c oxidase subunit 3 gene (cox3); the plastid rbcL, and the nuclear internal transcribed spacer 2 (ITS2) were used to evaluate genetic diversity and the relationships within and between populations. Samples were collected from both the Andaman Sea and Gulf of Thailand sides of the peninsula. Parsimony networks and maximum likelihood and Bayesian analyses showed clearly that there are two separated P. boryana lineages, one restricted to the Gulf of Thailand and the other to the Andaman Sea and other areas of the Indo-Pacific. The effect of different ocean currents along the Andaman Sea and Gulf of Thailand may have shaped these populations of P. boryana. This phylogeographic separation, based on persistent currents in the area, may affect other marine organisms along the Thai peninsula.

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“…Therefore, a DNA-based approach in combination with detailed anatomical characterization is fundamental for accurate systematic evaluation of this group (Vidal et al 2003). Herein, we used three markers to assess the diversity among Lithophyllum species in the Southern Brazilian coast: cox1 (the 5' region of the mitochondrial cytochrome c oxidase subunit I gene, Saunders 2005), UPA (the Universal Plastid Amplicon, Sherwood & Presting 2007, Sherwood et al 2008, Sherwood et al 2010) and the nuclear encoded SSU (Bailey & Chapman 1998, Bailey 1999.…”

Section: Introductionmentioning

confidence: 99%

Lithophyllum species from Brazilian coast: range extension of Lithophyllum margaritae and description of Lithophyllum atlanticum sp. nov. (Corallinales, Corallinophycidae, Rhodophyta)

et al. 2014

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Coralline algae (Corallinophycidae, Rhodophyta) are primarily characterized by the impregnation of calcium carbonate (calcite) in their cell walls. To determine the systematic position of genera and species, researchers are increasingly combining anatomical studies with comparisons of DNA sequences. In the present study we have described the main representatives of the genus Lithophyllum in intertidal and subtidal habitats from the southern coast of Brazil based on anatomical studies, supported by molecular markers. Analyses were conducted on specimens collected from five sites along the coast of southern Brazil. Anatomical studies were carried out by light and scanning electron microscopy. Molecular studies were based on DNA barcoding markers (cox1; UPA) and SSU rDNA. Using comparative anatomical features, corroborated by the molecular data, we identified two taxonomic entities from the Brazilian coast: Lithophyllum margaritae, and we propose the new species Lithophyllum atlanticum.

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Molecular genetic identification of crustose representatives of the order Corallinales (Rhodophyta) in Chile

Cited by 15 publications

References 49 publications

Mesophyllum Sphaericum Sp. Nov. (Corallinales, Rhodophyta): A New Maërl-Forming Species From the Northeast Atlantic1

Mesophyllum Sphaericum Sp. Nov. (Corallinales, Rhodophyta): A New Maërl-Forming Species From the Northeast Atlantic1

Phylogeography ofPadina boryana(Dictyotales, Phaeophyceae) around the Thai-Malay Peninsula

Lithophyllum species from Brazilian coast: range extension of Lithophyllum margaritae and description of Lithophyllum atlanticum sp. nov. (Corallinales, Corallinophycidae, Rhodophyta)

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