Article
Plant Sciences
Taylor M. Williams, Stacy A. Krueger-Hadfield, Kristina M. Hill-Spanik, Randall K. Kosaki, Solenn Stoeckel, Heather L. Spalding
Summary: This study explores the importance of determining the distribution of genetic diversity within and among populations by examining the relative importance of sexual and asexual reproduction. The researchers focused on Chondria tumulosa, a cryptogenic red alga, and found that it exhibited high rates of asexual reproduction and had the potential to spread to nearby atolls. Understanding the reproductive system of this alga is crucial for developing management strategies and expanding our knowledge of partially clonal taxa.
Editorial Material
Plant Sciences
Keolohilani H. H. Lopes Jr, Tomoaki Miura, Brian Hauk, Randall Kosaki, Jason Leonard, Cynthia Hunter
Summary: A red macroalga called Chondria tumulosa was discovered in 2016, forming thick mats on the forereef of Manawai Atoll. Subsequent expeditions revealed an increased abundance of this alga. In 2021, unattached C. tumulosa was observed forming a network of dark, meandering accumulations throughout the atoll's inner lagoon.
JOURNAL OF PHYCOLOGY
(2023)
Article
Marine & Freshwater Biology
Alison R. Sherwood, Monica O. Paiano, Feresa P. Cabrera, Heather L. Spalding, Brian B. Hauk, Randall K. Kosaki
Summary: A new species of mesophotic marine red algae, Ethelia hawaiiensis sp. nov., is distinguished by its unique morphology and DNA sequence, showing clear distinction from other members of the genus.
Article
Genetics & Heredity
Monica O. Paiano, Randall K. Kosaki, Taylor M. Williams, Heather L. Spalding, Alison R. Sherwood
Summary: The complete chloroplast genome of Chondria tumulosa, a red alga from Hawaii, was analyzed using next-generation sequencing and de novo assembly approaches. The genome contained 231 genes, including protein-coding genes, transfer RNA genes, ribosomal RNA genes, and non-coding RNA genes. Phylogenomic analysis showed that C. tumulosa is a distinct species within the Chondrieae tribe.
MITOCHONDRIAL DNA PART B-RESOURCES
(2021)
Article
Plant Sciences
Pilar Diaz-Tapia, Inci Tuney-Kizilkaya, Ergun Taskin
Summary: Species discovery is enhanced by the use of molecular tools and exploration of understudied habitats. Recent surveys in Bafa Lake, Turkey, led to the discovery of two new species: Lophosiphonia obscura and P. sukatarii sp. nov. The distribution of P. sukatarii sp. nov. is likely wide, as it was also found in algal turfs on the Canary Islands.
Article
Plant Sciences
Alison R. Sherwood, Feresa C. Cabrera, G'Voni Kalaiwaa, James T. Fumo, Heather L. Spalding, Randall K. Kosaki, Daniel Wagner, Monica O. Paiano
Summary: Molecular phylogenetic analyses were conducted to clarify the species diversity of the red algae family Dumontiaceae in Hawaii. While no new species of Dudresnaya were found, a new species of Gibsmithia was discovered. This species differs morphologically from other species and inhabits mesophotic depths, demonstrating its uniqueness.
Article
Plant Sciences
Cibele Conceicao dos Santos, Jose Marcos de Castro Nunes, Gabriel do Nascimento Santos, Edilene Maria dos Santos Pestana, Valeria Cassano, Goia de Mattos Lyra
Summary: This study conducted molecular, genetic, and morphological analyses of Lomentariaceae, resulting in the discovery of a new species, Ceratodictyon sanctae-crucis sp. nov., and the proposal of a new genus, Yendoa gen. nov., within Lomentariaceae. The study also revealed that Lomentariaceae now consists only of monophyletic genera, providing a more coherent taxonomic framework for the family.
Article
Limnology
Kunpeng Fang, Fangru Nan, Jia Feng, Junping Lu, Qi Liu, Xudong Liu, Shulian Xie
Summary: This study describes a new genus and species of freshwater red alga called Pauciramus yunnanensis. Based on morphological characteristics and phylogenetic analysis, a new order called Ottiales is proposed, which includes the genera Ottia and Pauciramus. The findings suggest a close relationship between Pauciramus and Ottia, and they are classified within the family Ottiaceae.
JOURNAL OF OCEANOLOGY AND LIMNOLOGY
(2022)
Article
Plant Sciences
Paul W. Gabrielson, Gavin W. Maneveldt, Jeffery R. Hughey, Viviana Pena
Summary: Phylogenetic analyses of rbcL gene sequences and concatenated rbcL, psbA, and nuclear SSU rRNA gene sequences identified Lithothamnion muelleri and three other southern Australian species as the generitype of the genus Lithothamnion. Cold water boreal species previously classified in Lithothamnion were transferred to the newly described genus Boreolithothamnion, with B. glaciale as the generitype. The discussion emphasizes the importance of using phylogenetic analyses to understand and correctly classify non-geniculate corallines based on morpho-anatomical characters.
JOURNAL OF PHYCOLOGY
(2023)
Article
Plant Sciences
Xianying Wen, Giuseppe C. Zuccarello, Eunyoung Shim, Soo Yeon Kim, Gwang Hoon Kim
Summary: Four species of Erythrotrichia have been reported in Korea, but no phylogenetic studies have been conducted. This study analyzed two newly collected Erythrotrichia isolates and identified a new species named Erythrotrichia johnawestii sp. nov. The new species differs from E. carnea in terms of outer cell wall layer and cell size. The study also observed the characteristics of the new species, such as the production of monospores and the absence of sexual reproduction during the culture period.
Article
Plant Sciences
Katia Sciuto, Emanuela Moschin, Giuseppina Alongi, Matteo Cecchetto, Stefano Schiaparelli, Annalisa Caragnano, Fabio Rindi, Isabella Moro
Summary: Advancements in our understanding of coralline algae diversity have been made with the use of DNA sequence data, revealing a potential underestimation of diversity in Antarctica. The discovery of a new genus, Tethysphytum, highlights the importance of molecular data in future taxonomic assessments within this region.
EUROPEAN JOURNAL OF PHYCOLOGY
(2021)
Article
Plant Sciences
Feresa P. Cabrera, John M. Huisman, Heather L. Spalding, Randall K. Kosaki, Alison R. Sherwood
Summary: Two new taxa of small red blades belonging to the genera Psaromenia and Meredithia were discovered, and described as new species within the family Kallymeniaceae. Psaromenia laulamaula sp. nov. is found exclusively at mesophotic depths, while Meredithia hawaiiensis sp. nov. occurs in both shallow and mesophotic depths with high morphological plasticity. This study provides additional evidence of poorly characterized diversity in the Kallymeniaceae from mesophotic depths and highlights overlooked biodiversity within the macroalgal flora.
EUROPEAN JOURNAL OF PHYCOLOGY
(2022)
Article
Plant Sciences
Natalia L. Rossignolo, Morgan L. Vis, Monica O. Paiano, Pertti Eloranta, John A. West, E. K. Ganesan, Farishta Yasmin, Phaik-Eem Lim, Orlando Necchi
Summary: The study comprehensively reviewed the genus Sirodotia Kylin using molecular and morphological data, identifying nine species, revealing their phylogenetic relationships and intra-specific variations, and proposing four new species.
CRYPTOGAMIE ALGOLOGIE
(2021)
Article
Plant Sciences
Alison R. Sherwood, Feresa P. Cabrera, Heather L. Spalding, Erika A. Alvarado, Celia M. Smith, Brian B. Hauk, Stephen J. Matadobra, Randall K. Kosaki, Monica O. Paiano
Summary: Two new species, one in the genus Incendia and one in Seiria, are described and illustrated in this study from mesophotic peyssonnelioid specimens collected in the Hawaiian Islands. Both genera are reported for the first time in Hawai'i. The new species are distinguished from other described species by unique characteristics, adding to the diversity of Hawaiian members of the Peyssonneliales.
Article
Genetics & Heredity
Monica O. Paiano, Randall K. Kosaki, Taylor M. Williams, Heather L. Spalding, Alison R. Sherwood
Summary: The complete chloroplast genome of Chondria tumulosa, a red alga from Hawaii, was analyzed using next-generation sequencing and de novo assembly approaches. The genome contained 231 genes, including protein-coding genes, transfer RNA genes, ribosomal RNA genes, and non-coding RNA genes. Phylogenomic analysis showed that C. tumulosa is a distinct species within the Chondrieae tribe.
MITOCHONDRIAL DNA PART B-RESOURCES
(2021)
Article
Plant Sciences
Christophe Vieira, Tom Schils, Hiroshi Kawai, Sofie D'hondt, Monica O. Paiano, Alison R. Sherwood, Olivier De Clerck, Mayalen Zubia
Summary: The calcified encrusting brown algal genus Newhousia is reported from three new archipelagos in the Pacific, with five distinct evolutionary lineages identified. The lineage from Guam, showing genetic variation from previously known species, is described as a new species.
Article
Plant Sciences
Feresa P. Cabrera, John M. Huisman, Heather L. Spalding, Randall K. Kosaki, Celia M. Smith, Alison R. Sherwood
Summary: Recent investigations in Hawaiian Mesophotic Coral Ecosystems have uncovered several specimens of Kallymeniaceae, indicating widespread cryptic diversity within the genus Croisettea. The discovery of four new Hawaiian species expands the known distribution of the genus to the North Pacific. However, limited sampling suggests that there may be additional species and more accurate distribution ranges yet to be discovered globally.
Article
Plant Sciences
Alison R. Sherwood, Feresa C. Cabrera, G'Voni Kalaiwaa, James T. Fumo, Heather L. Spalding, Randall K. Kosaki, Daniel Wagner, Monica O. Paiano
Summary: Molecular phylogenetic analyses were conducted to clarify the species diversity of the red algae family Dumontiaceae in Hawaii. While no new species of Dudresnaya were found, a new species of Gibsmithia was discovered. This species differs morphologically from other species and inhabits mesophotic depths, demonstrating its uniqueness.
Article
Plant Sciences
Erika A. Alvarado, Feresa P. Cabrera, Monica O. Paiano, James T. Fumo, Heather L. Spalding, Celia M. Smith, Jason C. Leonard, Keolohilani H. Lopes Jr, Randall K. Kosaki, Alison R. Sherwood
Summary: This article reports for the first time the presence of two genera, Halopeltis and Leptofauchea, from the Hawaiian Islands, representing the deepest records for both genera. Molecular phylogenetic analyses revealed multiple species within Leptofauchea, including a new species Leptofauchea huawelau sp. nov., and a new record for Hawaii, L. lucida from Western Australia. The Hawaiian Halopeltis formed a well-supported clade and a new species, Halopeltis nua-hilihilia sp. nov., is described. These findings highlight the importance of the Hawaiian mesophotic zone as a habitat for diverse and undescribed species of marine macroalgae.
Article
Biology
Alison R. Sherwood, Michael D. Guiry
Summary: This inventory provides the first complete list of seaweeds and seagrasses from the Hawaiian Islands, including recent descriptions of new species and molecular confirmation. The list consists of 661 records, with an endemism rate of 13.2%. Almost half of the records have been confirmed through DNA sequencing.
Article
Plant Sciences
Soria Delva, Camino Fernandez de la Hoz, Quinten Bafort, Sofie D'hondt, Soha Shabaka, Sarah Hamdy Rashedy, Alison R. Sherwood, Tamar Guy-Haim, Alvaro Israel, Olivier De Clerck
Summary: In this study, we investigate the introduction of Dictyota acutiloba in the Mediterranean Sea and provided an updated distribution of this species, which was believed to be limited to the Pacific Ocean. Genetic analysis and ecological niche models confirmed the presence of D. acutiloba in Indo-Pacific regions and along the Israeli coastline in the southeastern Mediterranean Sea. The close genetic relationship between introduced specimens and those from the Red Sea suggests an introduction through the Suez Canal. The further spread of D. acutiloba in the eastern Mediterranean is likely, with possible extension into the western Mediterranean Sea, depending on climate change scenarios.
EUROPEAN JOURNAL OF PHYCOLOGY
(2023)
