Diversity of <i>Halimeda</i> (Bryopsidales, Chlorophyta) in New Caledonia: a Combined Morphological and Molecular Study

Dijoux, Laury; Verbruggen, Heroen; Mattio, Lydiane; Duong, Nguyen Thi Thuy; Payri, Claude

doi:10.1111/jpy.12002

Cited by 23 publications

(10 citation statements)

References 41 publications

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“…TufA has been proposed as a DNA bar-coding marker for the Ulvophyceae, including Halimeda (Kooistra et al 2002;Verbruggen et al 2005bVerbruggen et al , c, d, e, 2006Verbruggen et al , 2007Verbruggen et al , 2009Saunders & Kucera 2010;Dijoux et al 2012). The phylogenetic results clearly indicated that this marker could identify morphological species of Halimeda in this region.…”

Section: Species Diversitymentioning

confidence: 84%

“…This belongs to the H. discoidea tropical Indo-Pacific Ocean clade. All tufA sequences of Thai H. discoidea were similar to H. discoidea (AY826360, SOC299 ) from Socotra, Yemen (Verburggen et al 2005e;Dijoux et al 2012).…”

Section: Variations Among and Within Speciesmentioning

confidence: 93%

“…Most studies of Halimeda were carried out from the Atlantic Ocean, with limited studies in the Indo-Pacific (Verbruggen & Kooistra 2004;Kooistra & Verbruggen 2005;Verbruggen et al 2005aVerbruggen et al , b, c, d, e, 2006Verbruggen et al , 2007Verbruggen et al , 2009Dijoux et al 2012). In Southeast Asia, 26 species of Halimeda are reported (Silva et al 1987(Silva et al , 1996Verbruggen et.…”

Section: Introductionmentioning

confidence: 90%

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Diversity of Halimeda (Chlorophyta) from the Thai–Malay Peninsula

et al. 2015

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The Thai-Malay Peninsula separates the Andaman Sea from the Gulf of Thailand. This barrier is known to affect species distribution and genetic diversity of marine organisms. Biodiversity studies need a correct species taxonomy to interpret their biogeography; this is especially relevant in marine algae where morphological characters are few or cryptic. We address species distributions of the important macroalgal genus Halimeda. The combination of morphological data and chloroplast tufA gene sequences were used to identify species, and to reveal the variation among Halimeda species around the Thai-Malay Peninsula. The morpho-anatomical and molecular analysis showed eight species of Halimeda in Thai and Malaysian waters: Halimeda borneensis, H. discoidea, H. gigas, H. macroloba, H. micronesica, H. minima, H. opuntia, H. renschii, and two undescribed species. Three species, H. minima, H. renschii and H. micronesica, were reported for the first time from the area. Species variation was much greater in the Andaman Sea than in the Gulf of Thailand. Our results show great variation in species composition and genetic variation between the two sides of the peninsula, which could be due to differences in sea-surface currents and environmental differences between the two sides of this important marine barrier.

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Section: Species Diversitymentioning

confidence: 84%

Section: Variations Among and Within Speciesmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 90%

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Diversity of Halimeda (Chlorophyta) from the Thai–Malay Peninsula

et al. 2015

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“…TufA marker (elongation factor Tu gene) obtained the best results in the universality of the primers and quality of the sequences, being proposed as a DNA barcode for green algae, and as a phylogenetic marker as well (Saunders & Kucera 2010). Its effectiveness and successfully as DNA barcode for green algae, showing good phylogenetic resolution at generic and specific level having proven by Dijoux et al (2012), Famà et al (2002), Ximenes et al (2017;, followed by the rbcL (Rubisco large subunit gene) also considered suitable for phylogenetic reconstruction , having been demonstrated a sufficient level of variation to be informative in intergeneric, inter-and intraspecific studies for green and red algae as well (Freshwater & Rueness 1994;Oliveira-Carvalho et al 2012;Leliaert et al 2014;Ximenes et al 2017;. Both have been widely used for other genera in the Bryopsidales, such as Caulerpa, Codium, and Halimeda (Lam & Zechman 2006;Oliveira-Carvalho et al 2012;Kazi et al 2013;Belton et al 2014;Ximenes et al 2017;, and also for other green algae (Mccourt et al 2000;Shimada et al 2003).…”

Section: Introductionmentioning

confidence: 99%

First molecular analysis of the genus Bryopsis (Bryopsidales, Chlorophyta) from Brazil, with an emphasis on the Pernambuco coast

et al. 2021

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The green algal genus Bryopsis has simple morphology and high phenotypic plasticity, making it difficult to identify its species based on morphological characteristics alone. This study evaluated the diversity of Bryopsis in northeastern Brazil (the State of Pernambuco), based on morphological and molecular data using the markers tufA and rbcL. Molecular analyses were incongruent with morphology, demonstrating the existence of cryptic and polymorphic species in the genus. Of the four taxa cited for the area based only on morphological data (Bryopsis corymbosa, B. pennata, B. plumosa, Bryopsis sp.), only B. pennata was recorded. Typical specimens of B. pennata and B. plumosa were grouped with low genetic divergence, 0-0.21 % for tufA and no divergence for rbcL, indicating that B. pennata is an extremely plastic species that includes specimens with morphotype B. "plumosa". Bryopsis pennata var. secunda is cited for the first time for northeastern Brazil, with divergence from the typical variety of 0.96-1.57 % for tufA and 0.4 % for rbcL. This study showed that broader sampling of Bryopsis is necessary in order to confirm the taxonomic status of the species referenced for Brazil, whose phenotypic plasticity may cause overestimation of diversity or reveal cryptic species.

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“…However, most sections within the genus Halimeda (e.g., Opuntia J. Agardh ex De Toni, Halimeda J. Agardh ex De Toni and Rhipsalis J. Agardh ex De Toni) have high morphological plasticity and show morphological variations that appear to correlate with habitats (Verbruggen & Kooistra 2004;Verbruggen 2005;Verbruggen et al 2005a;Pongparadon et al 2015). Halimeda section Opuntia is also known to be morphologically plastic (Verbruggen et al 2006;Dijoux et al 2012;Pongparadon et al 2015), and this section includes Halimeda opuntia, Halimeda distorta and Halimeda hederacea. Pongparadon et al (2015) reported that H. opuntia populations in Thai waters were genetically identical but showed morphological variations among populations as their segment shapes differed between shallow and deep water.…”

Section: Introductionmentioning

confidence: 99%

Phenotypic plasticity and morphological adaptation of Halimeda opuntia (Bryopsidales, Chlorophyta) to light intensity

Pongparadon

Nooek

Prathep

2019

Phycological Research

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Plasticity gives plants the ability to adapt their morphology and growth to various environments. Environmental factors can lead to changes in the growth forms of algae. Halimeda opuntia was used as a model organism to determine the effects of highly irradiated and shade conditions in the field and its responses to low light conditions in the laboratory, which are known to be some of the main factors driving its morphological plasticity. To investigate the morphological and anatomical characteristics of the species, a total of 61 characteristics and 54 samples from Thailand, Japan and Indonesia were examined. In addition, we also tested the response under different light conditions in the laboratory. A phylogenetic tree was constructed using the tufA marker to confirm the species identification. We found that the thallus forms, branching patterns and segment shapes and sizes responded to the different light conditions. A brittle thallus network was found under shade conditions with low light intensity, while a compact thallus form was found under highly irradiated conditions. The H. opuntia segment shape was reniform under highly irradiated conditions, but its segments were adapted to be deeply trilobed in the lower thallus and tripartite shape in the upper thallus under shade conditions. The segment size also adapted; the segments in shaded areas were longer than those in sunny areas, which might have helped them increase their thallus height to ensure exposure to the high light habitat. This morphological variation and plasticity expanded our understanding of the range of H. opuntia plasticity present in the field and could help explain why this species is common and successfully colonizes various habitats worldwide.

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Diversity of Halimeda (Bryopsidales, Chlorophyta) in New Caledonia: a Combined Morphological and Molecular Study

Cited by 23 publications

References 41 publications

Diversity of Halimeda (Chlorophyta) from the Thai–Malay Peninsula

Diversity of Halimeda (Chlorophyta) from the Thai–Malay Peninsula

First molecular analysis of the genus Bryopsis (Bryopsidales, Chlorophyta) from Brazil, with an emphasis on the Pernambuco coast

Phenotypic plasticity and morphological adaptation of Halimeda opuntia (Bryopsidales, Chlorophyta) to light intensity

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