| 1. |
Ni-Ni-Win, Takeaki Hanyuda, Hiroshi Kawai, Taxonomic assessment of the brown algal genus Dictyota (Dictyotales, Phaeophyceae) based on morphological and molecular analyses, with a focus on Japanese species, The 46th Annual Meeting of the Japanese Society of Phycology, 2022.03, The brown algal genus Dictyota (Dictyotales, Phaeophyceae) is an important component of marine benthic flora and widely distributed from tropical to temperate waters showing highest species diversity in the order. Despite its prevalence, there have been rather limited taxonomic studies associated with genetic data in Japan and Myanmar. In the present study, we reexamined the genus and species level taxonomy of Japan and Myanmar based on the combination of morphological and molecular analyses. Extensive sample collections were performed throughout Japan and from the northeastern Indian coast of Myanmar. Molecular phylogenetic analyses inferred from the concatenated multigene (rbcL+psaA+cox1+cox3) sequences revealed the positions of the newly collected Dictyota specimens in 15 distinct clades (lineages), which are considered to be distinctive in species level. Japanese specimens suggested the occurrences of 12 species and Myanmar, Philippines, and Indonesia specimens suggested the occurrences of additional 3 species. Among these 15 clades, Japanese specimens previously placed under the name D. dichotoma were clustered in 3 distantly related clades (D. dichtoma 1, 2 and 3), which are different from the clade of the European D. dichotoma, indicating an inadequate basis of morphology alone in species delineation. Thorough morphological examinations confirmed distinctive morphological features of Japanese D. dichotoma 1 and a clade from Myanmar, which do not agree with any reported species. Thus, we proposed them as two new species in this study. Specimens of Japanese D. dichotoma 2 agreed well with D. coriacea in morphology, reinforcing the previous reports in Japan. Additional morphological examinations of the specimens in the remaining clades are necessary to confirm their taxonomic entities. Phylogenetic analyses based on the current and previously reported data showed the occurrence of 15 and 3 Dictyota species respectively in Japan and Myanmar, indicating the presence of higher species richness particularly in Japan.. |
| 2. |
Ni-Ni-Win, Takeaki Hanyuda, Hiroshi Kawai, Taxonomic assessment of the brown algal genus Dictyota (Dictyotales, Phaeophyceae) based on morphological and molecular analyses, with a focus on Japanese species, The 46th Annual Meeting of the Japanese Society of Phycology (JSP), 2022.03. |
| 3. |
Ni-Ni-Win, One of the only two calcareous genera in brown algae, Padina: new insights into current systematics, global species diversity, and geographical distribution, 奈良女子大学, 2019.11. |
| 4. |
ニーニーウィン, One of only two calcareous genera in brown algae, Padina: new insights into current systematics, global species diversity and geographical distribution, 2019年度「藻類談話会」, 2019.11. |
| 5. |
ニーニーウィン, Molecular phylogeny and phylogeography of marine algae with special emphasis on systematics, biodiversity, geographical distribution and their correlations with the environment, UIN Islamic State University, Jakarta, Indonesia, 2019.08. |
| 6. |
ニーニーウィン, Phylogenetic and morphological studies of the brown algal genus Padina (Dictyotales, Phaeophyceae): new insights into global species diversity and geographical distribution, with the confirmation of four new species, The 2nd Diversity Symposium for Women Scientists, Kyushu University, Japan, 2019.03. |
| 7. |
Ni-Ni-Win
Mutsunori Tokeshi, Systematics, species diversity and global distribution pattern of the brown algal genus Padina (Dictyotales, Phaeophyceae) based on molecular and morphological data, The 12nd International Kuroshio Science Symposium, 2018.11, The brown algal genus Padina Adanson is widely distributed from warm temperate to tropical waters where species occur from the intertidal to deep subtidal zones. A series of recent taxonomic and phylogenetic studies of Padina has revealed many new species of Padina along the Indo-Pacific and Mediterranean Seas, particularly from southern Japan, with more than 70% increases of the recognized Indo-Pacific species. This study also uncovers the existence of additional four new species in southern Japan based on morphological and molecular analyses, showing unexpected high species diversity. A total number of Padina species in Japan increases to 25 species, indicating three times increase of the previous level of species richness, with Ryukyu Is. being the most species-rich area. A close affinity of species is found along the Pacific regions, being somewhat distinct from SE Asia regions (or the Indian Ocean), and species found in the Mediterranean Sea and the Atlantic also seem to have restricted distributions confined only to those areas. Several useful morphological characters for species delineation and morphological distinctiveness of four new species are discussed.. |
| 8. |
ニーニーウィン, Systematics, species diversity and global distribution pattern of the brown algal genus Padina (Dictyotales, Phaeophyceae) based on molecular and morphological data, The 12nd International Kuroshio Science Symposium, National Sun Yet-sen University, Kaohsiung City, Taiwan, 2018.11. |
| 9. |
ニーニーウィン, Molecular phylogeny and phylogeography of marine algae with special emphasis on systematics, species diversity, geographical distribution and seasonal species compositions, Biological Department Annual Seminar, Kyushu University, Japan, 2018.06. |
| 10. |
Ni-Ni-Win and Mutsunori Tokeshi, Molecular systematics unveils increased diversity of the genus Padina (Dictyotales, Phaeophyceae), especially in subtropical southern Japan, The 3rd SCESAP International Biodiversity Symposium, 2017.12, The brown algal genus Padina is worldly distributed around the world. Recent molecular and taxonomic studies uncovered the existence of many new species based on the molecular and morphological data. This study also reveals the occurrence of four new species and four unknown species that are considered to be new species, indicating unexpectedly high species diversity especially in southern Japan. Given this information Padina species in Japan increase to three times the previous level of species richness, with Ryukyu islands being the most species-rich area. A close affinity of species was found along the Pacific regions, being somewhat distinct from Southeast Asia regions (or the Indian Ocean). Species found in the Mediterranean Sea and the Atlantic seem to have restricted distributions confined only to those areas.
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| 11. |
ニーニーウィン, Molecular systematics unveils increased diversity of the genus Padina (Dictyotales, Phaeophyceae), especially in subtropical southern Japan, The 3rd SCESAP International Biodiversity Symposium, University of the Philippines, Cebu, Philippines, 2017.12. |
| 12. |
ニーニーウィン, Phylogeny, taxonomy, species diversity and distribution of the genus Padina (Dictyotales, Phaeophyceae), with an emphasis on four new records of Australian Padina, The 36th Annual Meeting of the Japanese Society of Phycology, Graduate School of Hokkaido University, Sapporo, Japan, 2012.07. |
| 13. |
ニーニーウィン, Taxonomy of the genus Padina (Dictyotales, Phaeophyceae) based on morphological and molecular observations, with a special emphasis on Japanese and Australian species, Workshop on Japan-Australia joint research of Calcareous Macroalgae: Genetic diversity and their vulnerability to global climate change, 2011.09. |
| 14. |
Ni-Ni-Win, Taxonomy and phylogeny of the genus Padina (Dictyotales, Phaeophyceae), University of Malaya, 2010.04. |
| 15. |
ニーニーウィン, Taxonomy and phylogeny of the genus Padina (Dictyotales, Phaeophyceae), Southeast Asian Seaweed Taxonomy Workshop II (SEASTax II), Institute of Ocean and Earth Science, University of Malaya, Malaysia, 2010.04. |
| 16. |
ニーニーウィン, Systematic revision of the genus Padina in the Pacific Ocean, The 72th Annual Meeting of the Botanical Society of Japan, Kochi University, Kochi, Japan, 2008.09. |
| 17. |
ニーニーウィン, Taxonomic revision of the genus Padina in the Western Pacific Ocean, The 32nd Annual Meeting of the Japanese Society of Phycology, Tokyo University, Tokyo, Japan, 2008.03. |
| 18. |
ニーニーウィン, New records of Padina species from subtropical water of Japan, The 71th Annual Meeting of the Botanical Society of Japan, Chiba University, Chiba, Japan, 2007.09. |
