Pyropia orbicularis sp. nov. (Rhodophyta, Bangiaceae) based on a population previously known as Porphyra columbina from the central coast of Chile

Ramirez, María Eliana; Contreras–Porcia, Loretto; Guillemin, Marie‐Laure; Brodie, Juliet; Valdivia, Catalina; Flores-Molina, María Rosa; Núñez, Alejandra; Contador, Cristian Bulboa; Lovazzano, Carlos

doi:10.11646/phytotaxa.158.2.2

Cited by 36 publications

(29 citation statements)

References 30 publications

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“…Development of PCR-RFLP to rapidly assess putative species identity of Maitencillo foliose Bangiales. Using the 44 rbcL sequences available for the four more common species of foliose Bangiales collected in Maitencillo (Ram ırez et al 2014, Guillemin et al 2016, see results for more information), we developed a method of species identification using PCR-RFLP analyses of plastid DNA.…”

Section: Methodsmentioning

confidence: 99%

“…Of the 18 species encountered in Chile, only two were named and were characterized morphologically (Ramírez et al. , Guillemin et al. ).…”

mentioning

confidence: 99%

“…In Chile, a recent study using molecular methods and samples spanning most of the coast (18°S-53°S) identified 18 species of bladed Bangiales belonging to Porphyra, Pyropia, Fuscifolium, and Wildemania (Guillemin et al 2016). Of the 18 species encountered in Chile, only two were named and were characterized morphologically (Ram ırez et al 2014, Guillemin et al 2016. A species cluster (namely Pyropia sp.…”

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confidence: 99%

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Genetic and morphological differentiation of Porphyra and Pyropia species (Bangiales, Rhodophyta) coexisting in a rocky intertidal in Central Chile

Meynard

Zapata

Salas

et al. 2019

Journal of Phycology

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A recent molecular taxonomic study along the Chilean coast (18° S–53° S) described 18 candidate species of bladed Bangiales of which only two were formally described. Few studies focused on local genetic and morphological diversity of bladed Bangiales and attempted to determine their intertidal distribution in contrasting habitats, and none were performed in Chile. To delimit intertidal distributions of genetic species, 66 samples of bladed Bangiales were collected at Maitencillo (32° S) in four zones: a rocky platform, a rocky wall, and two boulders zones surrounded by sandy and rocky bottoms, respectively. These samples were identified based on sequences of the mitochondrial COI and chloroplast rbcL markers. We also collected 87 specimens for morphological characterization of the most common species, rapidly assessing their putative species identity using newly developed species‐diagnostic (PCR‐RFLP) markers. Eight microscopic and two macroscopic morphological traits were measured. We described and named three of four species that predominate in Maitencillo (including Pyropia orbicularis): Pyropia variabilis Zapata, Meynard, Ramírez, Contreras‐Porcia, sp. nov., Porphyra luchea Meynard, Ramírez, Contreras‐Porcia sp. nov., and Porphyra longissima Meynard, Ramírez, Contreras‐Porcia, sp. nov. With the exception of Po. longissima restricted to boulders surrounded by sandy bottom, and a morphotype of Py. variabilis restricted to rocky walls, the other species/morphotypes have overlapping intertidal distributions. Except for Po. longissima, which is clearly differentiated morphologically (longest and thinnest blades), we conclude that morphology is not sufficient to differentiate bladed Bangiales. Our findings underscore the importance of refining our knowledge of intrinsic and environmental determinants on the distribution of bladed Bangiales.

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Section: Methodsmentioning

confidence: 99%

“…Of the 18 species encountered in Chile, only two were named and were characterized morphologically (Ramírez et al. , Guillemin et al. ).…”

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confidence: 99%

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Genetic and morphological differentiation of Porphyra and Pyropia species (Bangiales, Rhodophyta) coexisting in a rocky intertidal in Central Chile

Meynard

Zapata

Salas

et al. 2019

Journal of Phycology

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“…Nonetheless, in the desiccation stress‐tolerant species Pyropia orbicularis (Ramírez et al. ), which inhabits the upper intertidal zone along much of the Chilean coast, various desiccation tolerance mechanisms activated during low tide result in rapid physiological recovery during rehydration (Kim et al. , Gao et al.…”

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confidence: 99%

Non‐Random Distribution and Ecophysiological Differentiation of Pyropia Species (Bangiales, Rhodophyta) Through Environmental Gradients

Zapata

Meynard

Anguita

et al. 2019

Journal of Phycology

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Recently 18 Bangiales seaweed species were reported for the Chilean coast, including Pyropia orbicularis and Pyropia variabilis (large [LM] and green [GM] morphotypes). Porphyra/Pyropia spp. occur mainly in the upper intertidal where desiccation stress is triggered by tidal fluctuations. However, the influence of environmental and ecophysiological variables and seasonal differences on Porphyra/Pyropia (microhabitats) intertidal distributions is unknown. Accordingly, we determined (i) the effect of environmental variables (temperature [T], relative humidity [RH], and photosynthetically active radiation [PAR]) and season on distribution, and (ii) physiological (cellular activity and lipid peroxidation [LPX]) and molecular responses (antioxidant enzymes expression at biochemical and transcript level) to desiccation stress in both Pyropia species and morphotypes (common garden experiment, on flat rocky platforms). Multivariate analyses of coverage and abundance in relation to environmental variables revealed a significant effect of temperature on P. variabilis GM distribution, GM dominating almost exclusively on rocky walls (where lowest PAR and T values but maximum RH were registered). Conversely, Pyropia orbicularis and Pyropia variabilis LM were found in high abundance on flat rocky platforms in summer, LM and GM also dominating flat rocky platforms in winter and spring. LPX and catalase activity did not differed among species in summer, while in winter activity and transcription of cat were higher in P. orbicularis than P. variabilis. Results suggest that tolerance to environmental stresses such as temperature could regulate the occurrence of P. variabilis GM on rocky walls; conversely, abundances of P. variabilis and P. orbicularis on flat rocky platforms would be also regulated by other abiotic and/or biotic factors.

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“…Estas especies habían sido registradas para el intermareal rocoso de algunas localidades puntuales de la costa de Valparaíso (González & Santelices, 2003), pero revisiones recientes del orden Bangiales en Chile, basadas en evidencia molecular, han reorganizado los especímenes del Pacífico sudeste en nuevos géneros y/o especies (Ramírez et al, 2014;Guillemin et al, 2016).…”

Section: Listado De Especies De Macroalgas Exóticas A) Depuración De unclassified

Macroalgas exoticas en la costa de Chile: patrones espaciales y temporales en el proceso de invasion

Villaseñor-Parada¹,

Pauchard²,

Ramirez³

et al. 2018

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RESUMEN.En este trabajo se propone una lista de 14 especies de macroalgas exóticas en la costa de Chile, además de otras tres especies que, siendo nativas a la costa chilena, han sido introducidas en sectores fuera de su rango natural de distribución. Este listado fue realizado depurando catastros publicados con antelación, e incorporando nuevos reportes. La distribución de macroalgas exóticas no es homogénea a lo largo de la costa, sino que se concentra en sectores cercanos a puertos y centros de cultivos. La mayoría de las especies muestra una distribución bastante acotada y sólo cuatro tienden a ser invasoras (i.e., incrementan su rango de distribución a través del tiempo). Sin embargo, considerando que la mayoría de las introducciones son recientes (últimos 60 años), y la amplitud del rango de distribución se relaciona positivamente con el tiempo de residencia de las especies en la costa chilena, se sugiere que algunas de estas especies podrían estar en etapa de expansión, lo que explicaría su localizada distribución. Este trabajo no sólo actualiza la información relacionada con macroalgas exóticas en la costa chilena, sino que además permite entender el proceso de invasión de estos organismos, a través del análisis de los patrones descritos en estos sistemas. Palabras clave: macroalgas, invasión, Codium fragile, Asparagopsis armata, Mastocarpus latissimus, Schottera nicaeensis. Exotic seaweed in the Chilean coast: spatial and temporal patterns in the invasion processABSTRACT. In this paper we propose a checklist of 14 species of exotic seaweeds on the Chilean coast, and three species which, being native to the Chilean coast, have been introduced in areas outside their natural range. This list was compiled from previously published checklist, debugged the misidentified records, and incorporating new ones. The distribution of exotic seaweeds is not homogeneous along the coast, but it is concentrated in areas near ports and aquaculture centers. Most species display a fairly bounded distribution, and only four tend to invade (i.e., increase its range of distribution over time). However, considering that most introductions are recent (the last 60 years) and the positive relationship between amplitude of the distribution range and residence time of species on the Chilean coast, we suggest that some of these species may be in an expansion phase, which would explain its restricted distribution. This work not only updates the information related to exotic seaweed on the Chilean coast, but also allows us to understand the invasion process, through the analysis of the patterns described in these systems.

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Pyropia orbicularis sp. nov. (Rhodophyta, Bangiaceae) based on a population previously known as Porphyra columbina from the central coast of Chile

Cited by 36 publications

References 30 publications

Genetic and morphological differentiation of Porphyra and Pyropia species (Bangiales, Rhodophyta) coexisting in a rocky intertidal in Central Chile

Genetic and morphological differentiation of Porphyra and Pyropia species (Bangiales, Rhodophyta) coexisting in a rocky intertidal in Central Chile

Non‐Random Distribution and Ecophysiological Differentiation of Pyropia Species (Bangiales, Rhodophyta) Through Environmental Gradients

Macroalgas exoticas en la costa de Chile: patrones espaciales y temporales en el proceso de invasion

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