Morphological variation and haplotype diversity of \(\textit{Halimeda macroloba}\) and \(\textit{H. opuntia}\) (Chlorophyta: Halimedaceae) from Southern Vietnam

Authors

  • Nguyen Trung Hieu
  • Nguyen Nhat Nhu Thuy
  • Nguyen Xuan-Thuy
  • Nguyen Xuan Vy Institute of Oceanography

DOI:

https://doi.org/10.15625/1859-3097/16689

Keywords:

Genetic variation, Halimeda, morphology, Southern Viet Nam, tufA.

Abstract

Plasticity in morphology is a common phenomenon of aquatic plants. Halimeda (Chlorophyta: Halimedaceae) is usually supersaturated with calcium carbonate, and found in the tropical and subtropical regions. Among members of Halimeda, both species including Halimeda macroloba and H. opuntia often occur in different habitats. Haplotype diversity and network of Halimeda were reported in the different sea and oceanic systems. However, there are no any reports of genetic diversity of Halimeda from Vietnamese’s waters. This present study carried out sample collections along the coast of Southern Viet Nam including the coast sites, off-shore islands and Spratly Archipelago. External morphological and anatomical characteristics of two dominant species Halimeda macroloba and H. opuntia were caparisoned. The genetic marker tufA was applied to find the haplotype diversity and network among populations in Viet Nam and worldwide. The results showed that high morphology exist in both species. In contrast, the genetic variation in H. macroloba is very low, and H. opuntia tends to form a distinct group. We suggest that more samples of two species from other locations in Northern Viet Nam should be included.

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Published

2022-06-21

How to Cite

Nguyen, T. H., Nguyen Nhat, N. T., Nguyen, X. T., & Nguyen, V. X. (2022). Morphological variation and haplotype diversity of \(\textit{Halimeda macroloba}\) and \(\textit{H. opuntia}\) (Chlorophyta: Halimedaceae) from Southern Vietnam. Vietnam Journal of Marine Science and Technology, 22(2). https://doi.org/10.15625/1859-3097/16689

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