Morphology and molecular phylogeny of Hyalosynedra lanceolata sp nov and an extended description of Hyalosynedra (Bacillariophyta)

The araphid diatom genus Hyalosynedra is a very common component of marine benthic communities, occurring as an epiphyte or colonizing hard substrata, and has a worldwide distribution. The hyaline appearance of the valve and the high striation density, which is indiscernible under a light microscope, makes the identification of most species difficult and very few studies have investigated their morphology, phylogeny or ecology in detail. In an extensive study of diatom communities from the hypersaline Mar Menor coastal lagoon (SE Spain), several new taxa were found. Herein we propose Hyalosynedra lanceolata sp. nov. based on morphological observations (light and electron microscopy) and molecular data (phylogenetic and sequence divergence analyses). The species has distinctive morphological characters (radiate colony, biseriate striation, lanceolate sternum and two long laminar lobed chloroplasts) that are new for the genus and have been included in a proposal to extend the genus description. Our results also show that H. toxoneides does not belong to Hyalosynedra, but appears to be more closely related to Thalassionema and Thalassiothrix. However, further molecular and morphological research is needed to clarify its taxonomic position.

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Dolores Belando M. Jimenez J.F. Marin A. y Aboal M. Morphology and molecular phylogeny of Hyalosynedra lanceolata sp nov and an extended description of Hyalosynedra (Bacillariophyta). Taylor & Francis, 2018. https://doi.org/10.1080/09670262.2018.1426787

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Tipo de recurso Artículo
Fecha de creación 05-11-2024
Fecha de última modificación 19-01-2025
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Identificador de los metadatos 24131dd3-adea-59f7-a74d-f12fb1326d9d
Idioma de los metadatos Español
Temáticas (NTI-RISP)
Categoría del conjunto de alto valor (HVD) Observación de la Tierra y medio ambiente
Categoría temática ISO 19115 biota
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Nombre del autor Dolores Belando, M., Jimenez, J.F., Marin, A. y Aboal, M.
Nombre del editor Taylor & Francis
Identificador alternativo DOI: 10.1080/09670262.2018.1426787
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Email del autor m.doloresbelando@um.es
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