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Vicariance and oceanic barriers drive contemporary genetic structure of widespread mangrove species Sonneratia alba J. Sm in the Indo-West Pacific


Wee, Alison K. S. and Xian, Jessica Hui Teo and Chua, Jasher L. and Takayama, Koji and Asakawa, Takeshi and Meenakshisundaram, Sankararamasubramanian Halasya and Onrizal, - and Adjie, Bayu and Ardli, Erwin Riyanto and Sungkaew, Sarawood and Suleiman, Monica and Nguyen, Xuan Tung and Salmo, Severino Garengo and Yllano, Orlex Baylen and Saleh, Mohd Nazre Bin and Khin, Khin Soe and Tateishi, Yoichi and Watano, Yasuyuki and Tsuda, Yoshiaki and Kajita, Tadashi and Webb, Edward Layman (2017) Vicariance and oceanic barriers drive contemporary genetic structure of widespread mangrove species Sonneratia alba J. Sm in the Indo-West Pacific. Forests, 8 (12). pp. 1-21. ISSN 1999-4907; ESSN: 1999-4907


Patterns of genetic structure are essential for a comprehensive understanding of the evolution and biogeography of a species. Here, we investigated the genetic patterns of one of the most widespread and abundant mangrove species in the Indo-West Pacific, Sonneratia alba J. Sm., in order to gain insights into the ecological and evolutionary drivers of genetic structure in mangroves. We employed 11 nuclear microsatellite loci and two chloroplast regions to genotyped 25 S. alba 483 2 of 21 populations. Our objectives were to (1) assess the level of genetic diversity and its geographic distribution; and (2) determine the genetic structure of the populations. Our results revealed significant genetic differentiation among populations. We detected a major genetic break between Indo-Malesia and Australasia, and further population subdivision within each oceanic region in these two major clusters. The phylogeographic patterns indicated a strong influence of vicariance, oceanic barriers and geographic distance on genetic structure. In addition, we found low genetic diversity and high genetic drift at range edge. This study advances the scope of mangrove biogeography by demonstrating a unique scenario whereby a widespread species has limited dispersal and high genetic divergence among populations. , , , , , , , , , ,

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Additional Metadata

Item Type: Article
Divisions: Faculty of Forestry
DOI Number: https://doi.org/10.3390/f8120483
Publisher: MDPI
Keywords: Biogeography; Gene flow; Genetic diversity; Genetic divergence; Phylogeography; Sea dispersal
Depositing User: Mohd Hafiz Che Mahasan
Date Deposited: 07 Nov 2018 09:32
Last Modified: 07 Nov 2018 09:32
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/f8120483
URI: http://psasir.upm.edu.my/id/eprint/63684
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