Vicariance and Oceanic Barriers Drive Contemporary Genetic Structure of Widespread Mangrove Species Sonneratia alba J. Sm in the Indo-West Pacific
| Autor: | Jasher L. Chua, Sankararamasubramanian Halasya Meenakshisundaram, Onrizal, Yoichi Tateishi, Severino G. Salmo, Alison K. S. Wee, Bayu Adjie, Nguyen Xuan Tung, Jessica Xian Hui Teo, Khin Khin Soe, Yoshiaki Tsuda, Takeshi Asakawa, Koji Takayama, Sarawood Sungkaew, Tadashi Kajita, Erwin Riyanto Ardli, Orlex B. Yllano, Yasuyuki Watano, M. Nazre Saleh, Edward L. Webb, Monica Suleiman |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Biogeography Population phylogeography Biology biogeography gene flow genetic diversity genetic divergence sea dispersal 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Genetic drift Vicariance education Genetic diversity education.field_of_study Ecology Forestry lcsh:QK900-989 Genetic divergence 030104 developmental biology Sonneratia alba Genetic structure lcsh:Plant ecology |
| Zdroj: | Forests; Volume 8; Issue 12; Pages: 483 Forests, Vol 8, Iss 12, p 483 (2017) |
| ISSN: | 1999-4907 |
| DOI: | 10.3390/f8120483 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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