Analysis of rDNA reveals a high genetic diversity of Halophila major in the Wallacea region.

The genus Halophila shows the highest species diversity within the seagrass genera. Southeast Asian countries where several boundary lines exist were considered as the origin of seagrasses. We hypothesize that the boundary lines, such as Wallace's and Lydekker's Lines, may act as marine ge...

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Autores principales:	Xuan-Vy Nguyen, Nhu-Thuy Nguyen-Nhat, Xuan-Thuy Nguyen, Viet-Ha Dao, Lawrence M Liao, Jutta Papenbrock
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7ed32f1a8ed4455594bc2d9724b7e476
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spelling	oai:doaj.org-article:7ed32f1a8ed4455594bc2d9724b7e4762021-12-02T20:13:34ZAnalysis of rDNA reveals a high genetic diversity of Halophila major in the Wallacea region.1932-620310.1371/journal.pone.0258956https://doaj.org/article/7ed32f1a8ed4455594bc2d9724b7e4762021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0258956https://doaj.org/toc/1932-6203The genus Halophila shows the highest species diversity within the seagrass genera. Southeast Asian countries where several boundary lines exist were considered as the origin of seagrasses. We hypothesize that the boundary lines, such as Wallace's and Lydekker's Lines, may act as marine geographic barriers to the population structure of Halophila major. Seagrass samples were collected at three islands in Vietnamese waters and analyzed by the molecular maker ITS. These sequences were compared with published ITS sequences from seagrasses collected in the whole region of interest. In this study, we reveal the haplotype and nucleotide diversity, linking population genetics, phylogeography, phylogenetics and estimation of relative divergence times of H. major and other members of the Halophila genus. The morphological characters show variation. The results of the ITS marker analysis reveal smaller groups of H. major from Myanmar, Shoalwater Bay (Australia) and Okinawa (Japan) with high supporting values. The remaining groups including Sri Lanka, Viet Nam, the Philippines, Thailand, Malaysia, Indonesia, Two Peoples Bay (Australia) and Tokushima (Japan) showed low supporting values. The Wallacea region shows the highest haplotype and also nucleotide diversity. Non-significant differences were found among regions, but significant differences were presented among populations. The relative divergence times between some members of section Halophila were estimated 2.15-6.64 Mya.Xuan-Vy NguyenNhu-Thuy Nguyen-NhatXuan-Thuy NguyenViet-Ha DaoLawrence M LiaoJutta PapenbrockPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 10, p e0258956 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xuan-Vy Nguyen Nhu-Thuy Nguyen-Nhat Xuan-Thuy Nguyen Viet-Ha Dao Lawrence M Liao Jutta Papenbrock Analysis of rDNA reveals a high genetic diversity of Halophila major in the Wallacea region.
description	The genus Halophila shows the highest species diversity within the seagrass genera. Southeast Asian countries where several boundary lines exist were considered as the origin of seagrasses. We hypothesize that the boundary lines, such as Wallace's and Lydekker's Lines, may act as marine geographic barriers to the population structure of Halophila major. Seagrass samples were collected at three islands in Vietnamese waters and analyzed by the molecular maker ITS. These sequences were compared with published ITS sequences from seagrasses collected in the whole region of interest. In this study, we reveal the haplotype and nucleotide diversity, linking population genetics, phylogeography, phylogenetics and estimation of relative divergence times of H. major and other members of the Halophila genus. The morphological characters show variation. The results of the ITS marker analysis reveal smaller groups of H. major from Myanmar, Shoalwater Bay (Australia) and Okinawa (Japan) with high supporting values. The remaining groups including Sri Lanka, Viet Nam, the Philippines, Thailand, Malaysia, Indonesia, Two Peoples Bay (Australia) and Tokushima (Japan) showed low supporting values. The Wallacea region shows the highest haplotype and also nucleotide diversity. Non-significant differences were found among regions, but significant differences were presented among populations. The relative divergence times between some members of section Halophila were estimated 2.15-6.64 Mya.
format	article
author	Xuan-Vy Nguyen Nhu-Thuy Nguyen-Nhat Xuan-Thuy Nguyen Viet-Ha Dao Lawrence M Liao Jutta Papenbrock
author_facet	Xuan-Vy Nguyen Nhu-Thuy Nguyen-Nhat Xuan-Thuy Nguyen Viet-Ha Dao Lawrence M Liao Jutta Papenbrock
author_sort	Xuan-Vy Nguyen
title	Analysis of rDNA reveals a high genetic diversity of Halophila major in the Wallacea region.
title_short	Analysis of rDNA reveals a high genetic diversity of Halophila major in the Wallacea region.
title_full	Analysis of rDNA reveals a high genetic diversity of Halophila major in the Wallacea region.
title_fullStr	Analysis of rDNA reveals a high genetic diversity of Halophila major in the Wallacea region.
title_full_unstemmed	Analysis of rDNA reveals a high genetic diversity of Halophila major in the Wallacea region.
title_sort	analysis of rdna reveals a high genetic diversity of halophila major in the wallacea region.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/7ed32f1a8ed4455594bc2d9724b7e476
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Analysis of rDNA reveals a high genetic diversity of Halophila major in the Wallacea region.

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