Alison K. S. Wee and Teo, Jessica Xian Hui and Jasher L. Chua and Koji Takayama and Takeshi Asakawa and Sankararamasubramanian H. Meenakshisundaram and Onrizal and Bayu Adjie and Erwin Riyanto Ardli and Sarawood Sungkaew and Monica Suleiman and Nguyen Xuan Tung and Severino G. Salmo III and Orlex Baylen Yllano and M. Nazre Saleh and Soe, Khin Khin and Yoichi Tateishi and Yasuyuki Watano and Yoshiaki Tsuda and Tadashi Kajita and Edward L. Webb (2017) Vicariance and oceanic barriers drive contemporary genetic structure of widespread mangrove species Sonneratia alba J. Sm in the Indo-West Pacific. Forests, 8. pp. 1-21.
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Abstract
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 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.
| Item Type: | Article |
|---|---|
| Keyword: | Biogeography, Gene flow, Genetic diversity, Genetic divergence, Phylogeography, Sea Dispersal |
| Subjects: | Q Science > QH Natural history > QH1-278.5 Natural history (General) > QH1-(199.5) General Including nature conservation, geographical distribution S Agriculture > SD Forestry > SD1-669.5 Forestry |
| Department: | INSTITUTE > Institute for Tropical Biology and Conservation |
| Depositing User: | SITI AZIZAH BINTI IDRIS - |
| Date Deposited: | 31 Dec 2024 11:15 |
| Last Modified: | 31 Dec 2024 11:15 |
| URI: | https://eprints.ums.edu.my/id/eprint/42479 |
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