Is Halophila major (Zoll.) Miquel a big H. ovalis (R. Brown) J.D. Hooker? An evaluation based on age, morphology, and ITS sequence

Tuntiprapas, Piyalap; Shimada, Shoichi; Pongparadon, Supattra; Prathep, Anchana

doi:10.2306/scienceasia1513-1874.2015.41.079

Cited by 14 publications

(10 citation statements)

References 22 publications

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“…In the Gulf of Thailand, seagrass is found in 13 provinces, including Trat, Chanthaburi, Rayong, Chonburi, Phetchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, Pattani, and Narathiwat [29,59]. Of the 60 species of seagrass in the world [60], 13 are found in the Andaman Sea, and 12 in the Gulf of Thailand [7]. The seagrass area in the Andaman Sea is larger than that in the Gulf of Thailand [9], perhaps because wastewater discharge into the Andaman Sea contains only domestic waste, whereas in the Gulf of Thailand, it consists of both domestic waste and more toxic waste from industrial factories [61].…”

Section: Discussionmentioning

confidence: 99%

“…Dugongs have a life span of around 60-70 years [2], sexual maturity at ~10-12 years of age [3], and reach adulthood at 20 years of age [4]. Seagrass is the main food source of dugongs [5][6][7][8], so degradation and disappearance of these meadows are major reasons for declining dugong populations. Most of seagrass degradation is due to coastal construction, pollution, and illegal fishing [9].…”

Section: Introductionmentioning

confidence: 99%

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Microsatellite Polymorphism and the Population Structure of Dugongs (Dugong dugon) in Thailand

Poommouang

Piboon

Buddhachat

et al. 2022

Animals

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The dugong (Dugong dugon) is an endangered species of marine mammals, so knowledge of genetic diversity of these populations is important for conservation planning within different habitats. In this study, six microsatellite markers were used to assess the genetic diversity and population structure of 77 dugongs from skin samples of stranded animals collected from 1994–2019 (69 from Andaman Sea and 8 from the Gulf of Thailand). Our results found that dugongs in the Andaman Sea had higher genetic variation than those in the Gulf of Thailand. Populations in Trang, Satun, and some areas of Krabi had highest diversity compared to other regions of Thailand. Bayesian genetic clustering analysis revealed that dugongs in Thailand consist of five genetic groups. Moreover, dugongs in the middle and lower Andaman Sea presented the greatest gene flow compared to other regions. However, based on calculation of inbreeding coefficients (Fis value = 0.239), dugong populations in the Sea of Thailand are experiencing some levels of inbreeding, and so may warrant special protections. These results provide important information for understanding the genetic status of dugongs that can lead to improved management and conservation of this endangered species.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microsatellite Polymorphism and the Population Structure of Dugongs (Dugong dugon) in Thailand

Poommouang

Piboon

Buddhachat

et al. 2022

Animals

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“…Since H. major (synonym as H . euphlebia ) was identified molecularly [ 77 ] and morphologically [ 40 ] in Japan as an independent taxon, this species has been recorded from several countries in Southeast Asia and the Red Sea [ 47 , 50 , 51 , 78 , 79 ].…”

Section: Discussionmentioning

confidence: 99%

Taxonomy of the Genus Halophila Thouars (Hydocharitaceae): A Review

Kuo

2020

Plants

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The seagrass genus Halophila Thouars has more than twenty described species and is predominately distributed over a wide geographic range along the tropical and the warm temperate coastlines in the Indo-West Pacific Oceans. A brief history of the Halophila taxonomic development is presented. Based on reproductive and vegetative morphology, the genus is divided into eight sections including three new sections: section Australes, section Stipulaceae and section Decipientes. A rewritten taxonomic description of the type species for the genus Halophila,H. madagascariensis Steudel ex Doty et B.C. Stone, is provided. The lectotype of H. engelmannii Asch. as well as neotypes of H. hawaiiana Doty et B.C. Stone and H. spinulosa (Br.) Asch. are designated. Furthermore, H. ovalis ssp. bullosa, ssp. ramamurthiana and ssp. linearis together with H. balforurii have been recognised as distinct species. Nomenclature, typification, morphological description and botanical illustrations are presented for each taxon. Recent molecular phylogenetic surveys on certain Halophila taxa are also discussed. Field surveys for the deep water Halophila in West Pacific regions are suggested. Morphological studies combined with molecular investigations for the Halophila on the east coast of Africa and the West Indian Ocean are urgently needed and highly recommended.

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“…Azlan et al [27] reported that the total PUFAs, MUFAs, and SFAs contents of dabai pulp from the Sarawak Agriculture Department using Soxhlet extraction were 12.76%, 42.82%, and 44.43%, respectively. Jelani et al [28] also reported that the total MUFAs, PUFAs, and SFAs contents of two-mixture clones from the Semongok Agriculture Research Centre were 25.52%, 15.94%, and 59.54%, respectively. The results obtained are in agreement with Azlan et al [27] and Jelani et al [28] for SFAs values but not for PUFA and MUFA values.…”

Section: Determination Of Fatty Acidsmentioning

confidence: 98%

Fatty Acid Profile and Antioxidant Capacity of Dabai (Canarium odontophyllum L.): Effect of Origin and Fruit Component

et al. 2022

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In the present work, the influence of geographical location on the fatty acid profiles, antioxidant potential, as well as cytotoxicity of edible dabai fruit fractions (kernel, skin, and pulp) were analyzed. The fatty acid profiles were determined by Gas Chromatography (GC), and the antioxidant activity was quantified with free 2,2-diphenyl-1-picr/ylhdrazyl, while the cytotoxicity was assessed by the brine shrimp lethality test. The results showed that the samples from Sibu, Serian, and Kapit geographical locations had a high content of the saturated fatty acids, ranging from 46.63% to 53.31% in the three fractions. The highest mono-saturated fatty acids (MUFA) content was found in Sibu. Serian and Kapit kernel fractions MUFA, however, ranged from 21.2% to 45.91%. No fatty acid composition was detected in Bentong and Kanowit. The fatty acid composition and DPPH free radical scavenging antioxidant activity of dabai were statistically independent using a multivariate analysis in different localities in Malaysia. The skin fraction had a more appreciable antioxidant potential and toxicity level than the pulp and kernel fractions. The highest antioxidant activity (EC50 198.76 ± 1.06 µg/mL) with an LC50 value of 1387.22 µg/mL was obtained from the Sibu skin fraction. Therefore, the fatty acid composition, antioxidant, as well as cytotoxicity analyses of the extracts from different localities indicated that “geographical location” remarkably influenced fatty acid composition, antioxidant activity, and toxicity.

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Is Halophila major (Zoll.) Miquel a big H. ovalis (R. Brown) J.D. Hooker? An evaluation based on age, morphology, and ITS sequence

Cited by 14 publications

References 22 publications

Microsatellite Polymorphism and the Population Structure of Dugongs (Dugong dugon) in Thailand

Microsatellite Polymorphism and the Population Structure of Dugongs (Dugong dugon) in Thailand

Taxonomy of the Genus Halophila Thouars (Hydocharitaceae): A Review

Fatty Acid Profile and Antioxidant Capacity of Dabai (Canarium odontophyllum L.): Effect of Origin and Fruit Component

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