Diadumene paranaensis n. sp., collected from the Yacht Club of Paranaguá (Paranaguá Bay, Paraná State, southern Brazil), is described as a new species of sea anemone, based on external and internal morphology, cnidome, and molecular data for 16S/CO3 mitochondrial DNA. This species is partially similar to D. cincta due to the presence of macrobasic p-amastigophores in the tentacles, but is distinguished by the cinclides arranged in longitudinal rows and microbasic p-amastigophores in the acontia.
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New insights on the taxonomy of Diadumene paranaensis (Cnidaria: Actiniaria) associated with mangrove roots in the Brazilian semi-arid coast.
An Acad Bras Cienc
July 2024
Universidade Federal Rural de Pernambuco, Departamento de Biologia, Grupo de Pesquisa em Antozoários, Rua Dom Manuel de Medeiros, s/n, Dois Irmãos, 52171-900 Recife, PE, Brazil.
A dense estuarine aggregation of Diadumene paranaensis Beneti, Stampar, Maronna, Morandini & Da Silveira, 2015 associated with Rhizophora mangle L. was found at the Arpoeiras Beach, mouth of Acaraú River, Ceará, Brazilian semi-arid coast. Here, we compare biological and taxonomical traits with the type material, collected from the portuary zone of Paranaguá Bay, and propose modifications in the diagnosis of the species, as well as of the family Diadumenidae and genus Diadumene, to align with the description of our specimens.
View Article and Find Full Text PDFMitochondrial and nuclear gene sequencing confirms the presence of the invasive sea anemone (Verrill, 1869) (Cnidaria: Actiniaria) in Argentina.
PeerJ
December 2023
Laboratorio de Biología de Cnidarios, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Buenos Aires, Argentina.
Background: is one of the most widespread sea anemone species worldwide. Although this species has been reported a few times on the Argentine coast since 2004, its identification has traditionally been based on external morphological characteristics, and in most cases no voucher specimens are available to support previous records.
Methods: In this study, we obtained DNA sequences of two mitochondrial markers (12S and 16S) and two nuclear markers (18S and 28S) from specimens of collected in two locations on the Argentine coast separated by almost 800 km.
Cloning and structural basis of fluorescent protein color variants from identical species of sea anemone, Diadumene lineata.
Photochem Photobiol Sci
July 2023
Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata, 992-8510, Japan.
Diadumene lineata is a colorful sea anemone with orange stripe tissue of the body column and plain tentacles with red lines. We subjected Diadumene lineata to expression cloning and obtained genes encoding orange (OFP: DiLiFP561) and red fluorescent proteins (RFPs: DiLiFP570 and DiLiFP571). These proteins formed obligatory tetramers.
View Article and Find Full Text PDFThe Contribution of Clonality to Population Genetic Structure in the Sea Anemone, Diadumene lineata.
J Hered
March 2021
Department of Biology, University of Alabama at Birmingham, Birmingham, AL.
Ecological and evolutionary processes differ depending on how genetic diversity is organized in space. For clonal organisms, the organization of both genetic and genotypic diversity can influence the fitness effects of competition, the mating system, and reproductive mode, which are key drivers of life cycle evolution. Understanding how individual reproductive behavior contributes to population genetic structure is essential for disentangling these forces, particularly in species with complex and plastic life cycles.
View Article and Find Full Text PDFThe temperature-size rule is a commonly observed pattern where adult body size is negatively correlated with developmental temperature. In part, this may occur as a consequence of allometric scaling, where changes in the ratio of surface area to mass limit oxygen diffusion as body size increases. As oxygen demand increases with temperature, a smaller body should be favored as temperature increases.
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