Limited connectivity and a phylogeographic break characterize populations of the pink anemonefish, <i><scp>A</scp>mphiprion perideraion</i>, in the <scp>I</scp>ndo‐<scp>M</scp>alay <scp>A</scp>rchipelago: inferences from a mitochondrial and microsatellite loci

Dohna, Tina; Timm, Janne; Hamid, Lemia; Kochzius, Marc

doi:10.1002/ece3.1455

Cited by 24 publications

(28 citation statements)

References 93 publications

(154 reference statements)

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“…Similar patterns of genetic differentiation to what is reported here have been documented in numerous taxa in Indonesia (e.g., seagrasses, seagrass‐associated fungi, mangroves, and fish) (Dohna, Timm, Hamid, & Kochzius, ; Hernawan et al, ; Wainwright, Zahn, Arlyza, & Amend, ; Yahya et al, ).…”

Section: Discussionsupporting

confidence: 86%

Population genetics of the collector urchin, Tripneustes gratilla, in the Indonesian archipelago

2018

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The population genetics of the economically important collector urchin, Tripneustes gratilla, were examined in 353 individuals collected from 16 sampling sites throughout Indonesia at 12 microsatellite loci. Bayesian clustering methods over all sampling locations revealed evidence of two genetically distinct clusters, one located predominantly on the shallow Sunda Shelf and the second in the deep waters associated with the biogeographic region known as Wallacea; further analysis revealed additional genetic structure around the island of Halmahera and the Islands of Nias and Mentawai. We propose that the observed genetic differentiation is the result of habitat loss during periods of glacial maxima and differences in physical oceanographic properties throughout the Archipelago. The subsequent recolonization of this habitat as glaciers retreat and sea levels return to present‐day levels creates an unparalleled opportunity for colonists to exploit new habitat. The documentation of cryptic diversity will aid in the identification of hot spots of biodiversity and ultimately its conservation. These data indicate that genetic structure can be detected in a species that has a relatively high dispersal potential, and this differentiation is a potential source of evolutionary novelty.

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Section: Discussionsupporting

confidence: 86%

Population genetics of the collector urchin, Tripneustes gratilla, in the Indonesian archipelago

2018

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“…), A. perideraion (Dohna et al . ), T. maxima (Nuryanto & Kochzius ) and Tridacna crocea (Kochzius & Nuryanto ).…”

Section: Discussionmentioning

confidence: 99%

Highly restricted gene flow between disjunct populations of the skunk clownfish (Amphiprion akallopisos) in the Indian Ocean

Huyghe

Kochzius

2016

Marine Ecology

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The skunk clownfish (Amphiprion akallopisos) has a disjunct distribution, occurring in the Eastern Indian Ocean (EIO) and the Western Indian Ocean (WIO), separated by several thousands of kilometres. Information on connectivity of marine species is very important for the correct spacing of marine protected areas, a powerful instrument for the protection of coral reefs. The population genetic structure of A. akallopisos was analysed in order to investigate connectivity amongst populations and to explain the disjunct distribution of the species. A fragment of the mitochondrial control region was used to investigate the genetic population structure. Fin clips were collected from 263 individuals at 14 sites in the WIO and three sites in the EIO. The obtained DNA sequences were used to calculate genetic diversity, evaluate demographic history and to construct a haplotype network. An analysis of molecular variance (AMOVA) was conducted to evaluate the significance of the observed genetic population structure. None of the identified 69 haplotypes was shared between the WIO and EIO. Haplotype as well as nucleotide diversity was considerably higher in the EIO than in the WIO. Significant genetic population structure was revealed by an AMOVA with an overall φst‐value of 0.28 (P < 0.001) in the Indian Ocean. The overall AMOVA (φst = −0.00652) was not significant in the EIO, but was significant in the WIO (φst = 0.016; P < 0.01). Demographic analysis indicated population expansion in the EIO and WIO. Population genetic analysis revealed highly restricted gene flow between the EIO and WIO. Genetic diversity was much higher in the EIO than in the WIO, suggesting that the EIO is the geographical origin of the species. Given the large distance between the disjunct populations and the short pelagic larval duration, long‐distance dispersal is rather unlikely. A stepping stone model involving islands in the Central Indian Ocean is a more likely scenario for colonization of the WIO.

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“…Despite medium to high genetic diversity (Timm and Kochzius, 2008;Timm et al, 2012;Dohna et al, 2015) currently measured at many sites, exploitation and destructive fishing practices continue to impact the reefs of Spermonde and may further decrease genetic diversity. The effect may be particularly strong in the southern area of the archipelago, close to the shore, where access and exploitation are already high and genetic evidence suggests localized reduction in diversity.…”

Section: Amphiprion Ocellarismentioning

confidence: 99%

Small Scale Genetic Population Structure of Coral Reef Organisms in Spermonde Archipelago, Indonesia

et al. 2017

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Small island archipelagos with fringing and dispersed reef systems represent special marine ecosystems, providing a patchy habitat for many coral reef organisms. Although geographic distances may be short, it is still unclear if such environments are inhabited evenly with panmictic conditions or if limited connectivity between marine populations, even on small geographic scales, leads to genetic differentiation between areas within the archipelago or even single reef structures. To study diversity patterns and connectivity between reefs of the Spermonde Archipelago, Indonesia, population genetic analyses of two reef organisms were performed by using the mitochondrial control region and microsatellite markers. A vertebrate (clown anemonefish) and an invertebrate species (sea squirt) were studied in parallel to investigate if there are general patterns of connectivity in Spermonde for sessile or site attached marine species, which can be extrapolated to a larger group. The genetic population structures revealed restrictions in gene flow in the clown anemone fish (Amphiprion ocellaris), especially between near-shore reefs in the South of the archipelago. This indicates very localized genetic exchange and may also reflect the high self-recruitment typical for these fish. The northern reefs show higher connectivity despite geographic distances being larger. The filter-feeding sessile sea squirt, Polycarpa aurata, features similar population patterns, especially in the southern area. However, connectivity is generally higher in the middle and shelf edge areas of Spermonde for this species. The results underline that there are restrictions to gene flow even on very small geographic scales in the studied organisms, with many barriers to gene flow in the southern shallower shelf area. Weaker currents in this area may lead to more influence of biological factors for dispersal, such as larval behavior, motility and competition for suitable habitat. The results are discussed in the context of conservation and MPA planning in the Spermonde Archipelago.

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Limited connectivity and a phylogeographic break characterize populations of the pink anemonefish, Amphiprion perideraion, in the Indo‐Malay Archipelago: inferences from a mitochondrial and microsatellite loci

Cited by 24 publications

References 93 publications

Population genetics of the collector urchin, Tripneustes gratilla, in the Indonesian archipelago

Population genetics of the collector urchin, Tripneustes gratilla, in the Indonesian archipelago

Highly restricted gene flow between disjunct populations of the skunk clownfish (Amphiprion akallopisos) in the Indian Ocean

Small Scale Genetic Population Structure of Coral Reef Organisms in Spermonde Archipelago, Indonesia

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