Global Diversity and Geographic Distributions of Padina Species (Dictyotales, Phaeophyceae) : New Insights Based on Molecular and Morphological Analyses

© 2020 Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 57(2021), 2 vom: 01. Apr., Seite 454-472
1. Verfasser: Ni-Ni-Win (VerfasserIn)
Weitere Verfasser: Hanyuda, Takeaki, Kato, Aki, Shimabukuro, Hiromori, Uchimura, Masayuki, Kawai, Hiroshi, Tokeshi, Mutsunori
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Journal Article Padina imbricata Padina lutea Padina moffittianoides Padina nitida cox3 geographic distribution molecular phylogeny morphology rbcL species diversity
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520 |a The taxonomic status and species diversity of the brown algal genus Padina (Dictyotales, Phaeophyceae) was assessed based on DNA sequences and the morpho-anatomy of specimens collected worldwide, especially from tropical and subtropical western Pacific regions. Phylogenetic analyses using chloroplast rbcL and mitochondrial cox3 gene sequences demonstrated four distinct clades for newly collected samples with high bootstrap support. Each species clade possesses a suite of morphological features that are not shared by any known species of Padina. These are P. imbricata sp. nov., Padina lutea sp. nov., P. moffittianoides sp. nov., and P. nitida sp. nov. The occurrence of these and other species of Padina clearly points to an elevated diversity of the genus in tropical/subtropical waters of the western Pacific. Phylogenetic analyses provided new insights into biogeographic characteristics of the genus, with many species in the Pacific Ocean showing shared/overlapping distributions, whereas species from the Mediterranean/Atlantic and/or the Indian Ocean tend to be confined to particular regions. Consideration has also been given to the evolutionary time frame of the genus Padina based on molecular time trees: a time tree of the concatenated data set (rbcL + cox3) revealed the estimated divergence time in the mid-Cretaceous, whereas those of cox3 and rbcL showed older estimates pointing to the periods of mid-Jurassic and Early Cretaceous, respectively 
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650 4 |a Padina lutea 
650 4 |a Padina moffittianoides 
650 4 |a Padina nitida 
650 4 |a cox3 
650 4 |a geographic distribution 
650 4 |a molecular phylogeny 
650 4 |a morphology 
650 4 |a rbcL 
650 4 |a species diversity 
700 1 |a Hanyuda, Takeaki  |e verfasserin  |4 aut 
700 1 |a Kato, Aki  |e verfasserin  |4 aut 
700 1 |a Shimabukuro, Hiromori  |e verfasserin  |4 aut 
700 1 |a Uchimura, Masayuki  |e verfasserin  |4 aut 
700 1 |a Kawai, Hiroshi  |e verfasserin  |4 aut 
700 1 |a Tokeshi, Mutsunori  |e verfasserin  |4 aut 
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