Patrones de distribución de la familia Solieriaceae (Gigartinales, Rhodophyta) en México

Hernández, Oscar E.; Dreckmann, Kurt M.; Reséndiz, María Luisa Núñez; Sentíes, Abel

doi:10.21829/abm128.2021.1994

Cited by 4 publications

(1 citation statement)

References 38 publications

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“…Total number of cells 6-10 5-8 7 5-7 5-7 5-7 3-5 5 3-5 where most individuals from Veracruz are genetically distinct from those in Campeche and the Yucatán Peninsula (Díaz-Martínez et al, 2016). Ocean currents in the Caribbean and the Gulf of Mexico, which originated from the rising of the Yucatán Peninsula and the closure of the Central American isthmus (Pindell & Kennan, 2009), have been invoked to explain the distribution and endemicity of red algae in the region, particularly in relation to the isolation of populations in Campeche, located in the southeastern Gulf of Mexico (Dreckmann et al, 2018;Hernández et al, 2021;Núñez-Resendiz et al, 2017, either improving or reducing the connectivity between populations. The genetic pattern observed in L.…”

Section: Discussionmentioning

confidence: 99%

Lobophora dispersa (Dictyotaceae: Phaeophyceae), a new record for the coast of Veracruz and insights into Lobophora genetic differentiation in the Gulf of Mexico and the Caribbean Sea

Díaz-Martínez,

Hernández-Anaya,

Avila-Ortiz

et al. 2023

Rev.Mex.Biodiv.

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Species of Lobophora (Dictyotales) are distributed throughout the sub-tropical and tropical seas worldwide. Recent analyses have revealed high species diversity in regions previously presumed to host only a single species, such as the Bismarck Sea, Eastern Pacific, Western Atlantic, Mediterranean Sea, and Greater Caribbean. Here, samples from Veracruz and Quintana Roo, Mexico, were collected, and 2 genetic markers (cox3 and psbA) were sequenced. The results confirmed the presence of L. dispersa and L. variegata. Lobophora dispersa is recorded for the first time on the Mexican coast. The distribution of its cox3 haplotypes shows genetic differentiation within the Greater Caribbean and Gulf of Mexico, possibly indicating limited dispersal and isolation by distance. Lobophora variegata exhibits lower genetic variability compared to L. dispersa, but its haplotypes did not show any obvious pattern. Lobophora declerckii, previously reported in the “Anegada de Afuera” reef, Veracruz, was not found, possibly due to its affinity to subtidal depths. Morphologically, L. dispersa and L. variegata align with previous descriptions, although we observed more variation in thallus cell thickness in L. dispersa. However, relying solely on morphological characters is insufficient to confidently identify the species, necessitating further sampling to determine the species diversity in Mexico.

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Section: Discussionmentioning

confidence: 99%

Lobophora dispersa (Dictyotaceae: Phaeophyceae), a new record for the coast of Veracruz and insights into Lobophora genetic differentiation in the Gulf of Mexico and the Caribbean Sea

Díaz-Martínez,

Hernández-Anaya,

Avila-Ortiz

et al. 2023

Rev.Mex.Biodiv.

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Phylospecies in the Mexican marine algal diversity and the problem of morphospecies

Núñez Resendiz,

Dreckmann,

Sentíes

et al. 2024

Bot. Sci.

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Algae constitute a non-natural group of organisms that share morphological, physiological and ecological characteristics due to a complex shared evolutionary history. They live attached to a substrate or floating in a column of fresh or marine water. These latter are classified into macro and microalgae, whose current diversity recorded in Mexico is represented by approximately 1,700 species of macroalgae and 1,500 of microalgae. However, this diversity is based on morphological attributes. The problem of the morphospecies is that it depends on the expression of the genotype in response to the environmental heterogeneity in which these organisms establish themselves, resulting in phenotypic plasticity or morphological monotony, with the consequent overlapping of characters, generating misidentifications with several taxonomical problems associated and unstable classification systems. The molecular characterization of species has generated great taxonomic changes and more robust classifications. Currently, the diversity of Mexican phylospecies is reduced, with only 250 macro and microalgae, representing 12.5 and 2.3 % of the diversity, respectively. However, of the 142 works associated with phylospecies, 82 have led to taxonomic changes and proposals with important implications in the construction of more stable classification systems and a better understanding of Mexican phycofloristic diversity in all groups.

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Listado sistemático actualizado de las macroalgas estuarinas de Veracruz, México

Sánchez¹,

Dreckmann²,

Reséndiz³

et al. 2022

Acta Bot. Mex.

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Antecedentes y Objetivos: Los sistemas estuarinos veracruzanos cubren 1166 km2 correspondientes a 14 lagunas costeras que constituyen uno de los ambientes acuáticos con mayor diversidad y productividad. Estos son ambientes críticos para especies económicamente importantes, como las macroalgas, que dependen de ellos para su reproducción, alimentación, establecimiento y refugio. Aunque lo anterior los hace candidatos ideales para estudios de biología de la conservación, solo hay dos contribuciones previas a 1995 sobre ficología estuarina. Por tanto, el objetivo de este trabajo fue elaborar un listado sistemático actualizado de las macroalgas estuarinas de Veracruz, junto con un análisis gráfico, que contribuya al conocimiento del grupo y sirva como referencia para posteriores investigaciones biogeográficas, ecológicas o de conservación. Métodos: Se revisó la literatura ficológica publicada de 1963 a septiembre de 2022, así como la base de datos del herbario UAMIZ, para complementar y actualizar los registros. Para la determinación taxonómica de los ejemplares se hizo un estudio de morfología externa. La sinonimia y estatus nomenclatural fueron revisados en AlgaeBase. A partir de los registros obtenidos se realizó un análisis gráfico. Resultados clave: Se presenta una lista actualizada con 113 especies de macroalgas estuarinas: 62 Rhodophyta, 26 Phaeophyceae, Ochrophyta y 25 Chlorophyta, distribuidas en 24 órdenes, 38 familias y 68 géneros. Conclusiones: De acuerdo con lo observado, son evidentes los escasos o nulos estudios ficológicos en ambientes estuarinos veracruzanos, lo que origina un vacío en el contexto de la diversidad de macroalgas estuarinas. Este listado, además de ser una contribución actualizada para Veracruz, es un punto de partida para emprender futuros análisis que ayuden a establecer áreas de importancia biológica en estos ambientes, con el fin de maximizar la diversidad. Además, es evidente la necesidad de un monitoreo ficofloristico constante en los estuarios.

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Patrones de distribución de la familia Solieriaceae (Gigartinales, Rhodophyta) en México

Cited by 4 publications

References 38 publications

Lobophora dispersa (Dictyotaceae: Phaeophyceae), a new record for the coast of Veracruz and insights into Lobophora genetic differentiation in the Gulf of Mexico and the Caribbean Sea

Lobophora dispersa (Dictyotaceae: Phaeophyceae), a new record for the coast of Veracruz and insights into Lobophora genetic differentiation in the Gulf of Mexico and the Caribbean Sea

Phylospecies in the Mexican marine algal diversity and the problem of morphospecies

Listado sistemático actualizado de las macroalgas estuarinas de Veracruz, México

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