Haplotype networks of Phycocalidia tanegashimensis (Bangiales, Rhodophyta) indicate a probable invasion from the South China Sea to Brazil

Zhao, Wan; Dong, Lei; Hồng, Đặng Diễm; Brodie, Juliet; Chen, Weizhou; Tien, Dam Duc; Zhou, Wei; Lü, Quan; Zhang, Meiru; Yang, Lintao

doi:10.1007/s12526-021-01177-w

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…Notably, Sauriau et al (2021) recently questioned the introduction of U. australis in Europe by using all available NCBI sequences of U. australis to infer introduction events. Indeed, the separation of sequences from a given species into haplotypes allows for a more granular analysis of species diversity and the detection of the introduction of new genotypes into the environment (Zhao et al, 2021). The use of haplotype network tools such as POPART (Leigh & Bryant, 2015), together with the output of the analytical framework presented here, could allow to quickly revisit introduction events of any taxa of interest.…”

Section: Discussionmentioning

confidence: 99%

Exhaustive reanalysis of barcode sequences from public repositories highlights ongoing misidentifications and impacts taxa diversity and distribution

Fort

McHale

Cascella

et al. 2021

Molecular Ecology Resources

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Accurate species identification often relies on public repositories to compare the barcode sequences of the investigated individual(s) with taxonomically assigned sequences. However, the accuracy of identifications in public repositories is often questionable, and the names originally given are rarely updated. For instance, species of the Sea Lettuce (Ulva spp.; Ulvophyceae, Ulvales, Ulvaceae) are frequently misidentified in public repositories, including herbaria and gene banks, making species identification based on traditional barcoding unreliable. We DNA barcoded 295 individual distromatic foliose strains of Ulva from the North‐East Atlantic for three loci (rbcL, tufA, ITS1). Seven distinct species were found, and we compared our results with all worldwide Ulva spp. sequences present in the NCBI database for the three barcodes rbcL, tufA and the ITS1. Our results demonstrate a large degree of species misidentification, where we estimate that 24%–32% of the entries pertaining to foliose species are misannotated and provide an exhaustive list of NCBI sequences reannotations. An analysis of the global distribution of registered samples from foliose species also indicates possible geographical isolation for some species, and the absence of U. lactuca from Northern Europe. We extended our analytical framework to three other genera, Fucus, Porphyra and Pyropia and also identified erroneously labelled accessions and possibly new synonymies, albeit less than for Ulva spp. Altogether, exhaustive taxonomic clarification by aggregation of a library of barcode sequences highlights misannotations and delivers an improved representation of species diversity and distribution.

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Section: Discussionmentioning

confidence: 99%

Exhaustive reanalysis of barcode sequences from public repositories highlights ongoing misidentifications and impacts taxa diversity and distribution

Fort

McHale

Cascella

et al. 2021

Molecular Ecology Resources

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show abstract

“…Based on phylogenetic analyses using concatenated chloroplast and mitochondrial and nuclear markers (rbcL, cox1, and LSU rDNA (28S)), Vy et al [50] showed that H. dilatata may have been misidentified as Halymenia malaysiana Tan, Lim, Lin & Phang, a study that confirms new distributional records of Phycocalidia tanegashimensis along the Chinese and Vietnamese coastline in the South China Sea. The study used molecular sequence data from rbcL, COI-5P, and 18S rRNA genes to place P. tanegashimensis in a clade with P. acanthophora, P. denticulata, P. suborbiculata, and P. vietnamensis as out-groups [54].…”

Section: Molecular-assisted Alpha Taxonomy Of Rhodophytamentioning

confidence: 99%

Marine Floral Biodiversity, Threats, and Conservation in Vietnam: An Updated Review

Nguyen

Kim

Nguyen

et al. 2023

Plants

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Part of the Indo-Chinese peninsula and located on the northwest edge of the Coral Triangle in the South China Sea, the Vietnamese coastal zone is home to a wealthy marine biodiversity associated with the regional geological setting and history, which supports a large number of marine ecosystems along a subtropical to tropical gradient. The diversity of coastal benthic marine primary producers is also a key biological factor supporting marine biological diversity. The present review provides: (1) an updated checklist of the Vietnamese marine flora, (2) a review of molecular-assisted alpha taxonomic efforts, (3) an analysis of marine floral biodiversity spatial distribution nationally and regionally (South China Sea), (4) a review of the impact of anthropogenic and environmental stressors on the Vietnamese marine flora, and (5) the efforts developed in the last decade for its conservation. Based on the studies conducted since 2013 and the nomenclatural changes that occurred during this period, an updated checklist of benthic marine algae and seagrasses consisted in a new total of 878 species, including 439 Rhodophyta, 156 Ochrophyta, 196 Chlorophyta, 87 Cyanobacteria, and 15 phanerogam seagrasses. This update contains 54 new records and 5 new species of macroalgae. The fairly poor number of new records and new species identified in the last 10 years in a “mega-diverse” country can be largely attributed to the limited efforts in exploring algal biodiversity and the limited use of genetic tools, with only 25.4% (15 species) of these new records and species made based on molecular-assisted alpha taxonomy. The South Central Coast supports the highest species diversity of marine algae, which coincides with the largest density of coral reefs along the Vietnamese coast. Vietnam holds in the South China Sea one of the richest marine floras, imputable to the country’s geographical, geological, and climatic settings. However, Vietnam marine floral biodiversity is under critical threats examined here, and current efforts are insufficient for its conservation. A methodical molecular-assisted re-examination of Vietnam marine floral biodiversity is urgently needed, complemented with in-depth investigations of the main threats targeting marine flora and vulnerable taxa, and finally, conservation measures should be urgently implemented.

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Seaweeds of Vietnam: Opportunities for Commercial Production

Hồng

2022

Sustainable Global Resources of Seaweeds Volume 1

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Haplotype networks of Phycocalidia tanegashimensis (Bangiales, Rhodophyta) indicate a probable invasion from the South China Sea to Brazil

Cited by 3 publications

References 32 publications

Exhaustive reanalysis of barcode sequences from public repositories highlights ongoing misidentifications and impacts taxa diversity and distribution

Exhaustive reanalysis of barcode sequences from public repositories highlights ongoing misidentifications and impacts taxa diversity and distribution

Marine Floral Biodiversity, Threats, and Conservation in Vietnam: An Updated Review

Seaweeds of Vietnam: Opportunities for Commercial Production

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