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Triest L, Van der Stocken T, De Ryck D, Kochzius M, Lorent S, Ngeve M, Ratsimbazafy HA, Sierens T, van der Ven R, Koedam N. Expansion of the mangrove species Rhizophora mucronata in the Western Indian Ocean launched contrasting genetic patterns. Sci Rep 2021; 11:4987. [PMID: 33654151 PMCID: PMC7925526 DOI: 10.1038/s41598-021-84304-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 02/11/2021] [Indexed: 12/14/2022] Open
Abstract
Estimates of population structure and gene flow allow exploring the historical and contemporary processes that determine a species’ biogeographic pattern. In mangroves, large-scale genetic studies to estimate gene flow have been conducted predominantly in the Indo-Pacific and Atlantic region. Here we examine the genetic diversity and connectivity of Rhizophora mucronata across a > 3,000 km coastal stretch in the Western Indian Ocean (WIO) including WIO islands. Based on 359 trees from 13 populations and using 17 polymorphic microsatellite loci we detected genetic breaks between populations of the (1) East African coastline, (2) Mozambique Channel Area (3) granitic Seychelles, and (4) Aldabra and northern Madagascar. Genetic structure, diversity levels, and patterns of inferred connectivity, aligned with the directionality of major ocean currents, driven by bifurcation of the South Equatorial Current, northward into the East African Coastal Current and southward into the Mozambique Channel Area. A secondary genetic break between nearby populations in the Delagoa Bight coincided with high inbreeding levels and fixed loci. Results illustrate how oceanographic processes can connect and separate mangrove populations regardless of geographic distance.
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Affiliation(s)
- Ludwig Triest
- Ecology and Biodiversity, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium.
| | - Tom Van der Stocken
- Ecology and Biodiversity, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium
| | - Dennis De Ryck
- Ecology and Biodiversity, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium
| | - Marc Kochzius
- Marine Biology, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium
| | - Sophie Lorent
- Ecology and Biodiversity, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium
| | - Magdalene Ngeve
- Ecology and Biodiversity, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium.,Department of Plant Sciences and Landscape Architecture, University of Maryland, College Park, MD, 20742, USA
| | - Hajaniaina Andrianavalonarivo Ratsimbazafy
- Ecology and Biodiversity, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium.,Marine Biology, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium.,Laboratory of Systems Ecology and Resource Management, Département de Biologie Des Organismes, Université Libre de Bruxelles - ULB, Av. F.D. Roosevelt 50, CPi 264/1, 1050, Brussels, Belgium
| | - Tim Sierens
- Ecology and Biodiversity, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium
| | - Rosa van der Ven
- Marine Biology, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium.,Marine Animal Ecology Group, Wageningen University, Wageningen, The Netherlands
| | - Nico Koedam
- Ecology and Biodiversity, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Elsene, Brussels, Belgium
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Miura O, Urabe M, Mori H, Chiba S. Ancient drainage networks mediated a large-scale genetic introgression in the East Asian freshwater snails. Ecol Evol 2020; 10:8186-8196. [PMID: 32788971 PMCID: PMC7417214 DOI: 10.1002/ece3.6523] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/29/2020] [Accepted: 06/08/2020] [Indexed: 02/02/2023] Open
Abstract
Biogeography and genetic variation of freshwater organisms are influenced not only by current freshwater connections but also by past drainage networks. The Seto Inland Sea is a shallow enclosed sea in Japan, but geological evidence showed that a large freshwater drainage had intermittently appeared in this area between the late Pliocene and Pleistocene. Here, we demonstrated that this paleodrainage greatly affected the genetic variation of the East Asian freshwater snails, Semisulcospira spp. We found that the mtDNA haplotypes originated in the Lake Biwa endemic Semisulcospira species at the upstream side of the paleodrainage were frequently observed in the riverine Semisulcospira species at its downstream side. The genome-wide DNA and morphological analyses consistently showed that there was no clear evidence of nuclear introgression between the Lake Biwa endemics and riverine species. These results suggest that the large paleodrainage had facilitated mitochondrial introgression and had broadly spread the introgressed mtDNA haplotypes to its downstream region around the Seto Inland Sea. Our study highlights the role of paleodrainages in shaping the genetic variation of freshwater organisms.
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Affiliation(s)
- Osamu Miura
- Faculty of Agriculture and Marine ScienceKochi UniversityNankokuJapan
| | - Misako Urabe
- Department of Ecosystem StudiesSchool of Environmental ScienceThe University of Shiga PrefectureHikoneJapan
| | | | - Satoshi Chiba
- Division of Ecology and Evolutionary BiologyGraduate School of Life SciencesTohoku UniversitySendaiJapan
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Singh SP, Groeneveld JC, Hart‐Davis MG, Backeberg BC, Willows‐Munro S. Seascape genetics of the spiny lobster Panulirus homarus in the Western Indian Ocean: Understanding how oceanographic features shape the genetic structure of species with high larval dispersal potential. Ecol Evol 2018; 8:12221-12237. [PMID: 30598813 PMCID: PMC6303728 DOI: 10.1002/ece3.4684] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 09/13/2018] [Accepted: 09/14/2018] [Indexed: 01/03/2023] Open
Abstract
This study examines the fine-scale population genetic structure and phylogeography of the spiny lobster Panulirus homarus in the Western Indian Ocean. A seascape genetics approach was used to relate the observed genetic structure based on 21 microsatellite loci to ocean circulation patterns, and to determine the influence of latitude, sea surface temperature (SST), and ocean turbidity (KD490) on population-level processes. At a geospatial level, the genetic clusters recovered corresponded to three putative subspecies, P. h. rubellus from the SW Indian Ocean, P. h. megasculptus from the NW Indian Ocean, and P. h. homarus from the tropical region in-between. Virtual passive Lagrangian particles advected using satellite-derived ocean surface currents were used to simulate larval dispersal. In the SW Indian Ocean, the dispersion of particles tracked over a 4-month period provided insight into a steep genetic gradient observed at the Delagoa Bight, which separates P. h. rubellus and P. h. homarus. South of the contact zone, particles were advected southwestwards by prevailing boundary currents or were retained in nearshore eddies close to release locations. Some particles released in southeast Madagascar dispersed across the Mozambique Channel and reached the African shelf. Dispersal was characterized by high seasonal and inter-annual variability, and a large proportion of particles were dispersed far offshore and presumably lost. In the NW Indian Ocean, particles were retained within the Arabian Sea. Larval retention and self-recruitment in the Arabian Sea could explain the recent genetic divergence between P. h. megasculptus and P. h. homarus. Geographic distance and minimum SST were significantly associated with genetic differentiation in multivariate analysis, suggesting that larval tolerance to SST plays a role in shaping the population structure of P. homarus.
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Affiliation(s)
- Sohana P. Singh
- Oceanographic Research InstituteMarine ParadeSouth Africa
- School of Life SciencesUniversity of KwaZulu‐NatalPietermaritzburgSouth Africa
| | - Johan C. Groeneveld
- Oceanographic Research InstituteMarine ParadeSouth Africa
- School of Life SciencesUniversity of KwaZulu‐NatalPietermaritzburgSouth Africa
| | - Michael G. Hart‐Davis
- Institute for Coastal and Marine ResearchNelson Mandela UniversityPort ElizabethSouth Africa
- Department of Oceanography, Nansen‐Tutu Centre for Marine Environmental ResearchUniversity of Cape TownSouth Africa
- Egagasini NodeSouth African Environmental Observation NetworkCape TownSouth Africa
| | - Björn C. Backeberg
- Department of Oceanography, Nansen‐Tutu Centre for Marine Environmental ResearchUniversity of Cape TownSouth Africa
- Council for Scientific and Industrial Research, Natural Resources and the EnvironmentCoastal Systems Research GroupStellenboschSouth Africa
- Nansen Environmental and Remote Sensing CenterBergenNorway
| | - Sandi Willows‐Munro
- School of Life SciencesUniversity of KwaZulu‐NatalPietermaritzburgSouth Africa
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Dapporto L, Vodă R, Dincă V, Vila R. Comparing population patterns for genetic and morphological markers with uneven sample sizes. An example for the butterflyManiola jurtina. Methods Ecol Evol 2014. [DOI: 10.1111/2041-210x.12220] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Leonardo Dapporto
- Department of Biological and Medical Sciences; Oxford Brookes University; Headington Oxford OX3 0BP UK
| | - Raluca Vodă
- Institut de Biologia Evolutiva (CSIC-Universitat Pompeu Fabra); Passeig Marítim de la Barceloneta 37 Barcelona 08003 Spain
- Departament de Genètica i Microbiologia; Universitat Autònoma de Barcelona; Bellaterra 08193 Spain
| | - Vlad Dincă
- Institut de Biologia Evolutiva (CSIC-Universitat Pompeu Fabra); Passeig Marítim de la Barceloneta 37 Barcelona 08003 Spain
- Department of Zoology; Stockholm University; Stockholm S-106 91 Sweden
- Biodiversity Institute of Ontario; University of Guelph; Guelph N1G 2W1 ON Canada
| | - Roger Vila
- Institut de Biologia Evolutiva (CSIC-Universitat Pompeu Fabra); Passeig Marítim de la Barceloneta 37 Barcelona 08003 Spain
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Reid DG, Claremont M, Smith L, Shamoto M, Glaubrecht M, Ozawa T. Mosaics in the mangroves: allopatric diversification of tree-climbing mudwhelks (Gastropoda: Potamididae:Cerithidea) in the Indo-West Pacific. Biol J Linn Soc Lond 2013. [DOI: 10.1111/bij.12151] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David G. Reid
- Department of Life Sciences; Natural History Museum; London; SW7 5BD; UK
| | - Martine Claremont
- Department of Life Sciences; Natural History Museum; London; SW7 5BD; UK
| | - Lisa Smith
- Department of Life Sciences; Natural History Museum; London; SW7 5BD; UK
| | - Manabu Shamoto
- Municipal Board of Education; Toyota City; 471-8501; Japan
| | - Matthias Glaubrecht
- Museum für Naturkunde Berlin; Leibniz-Institut für Evolutions- und Biodiversitätsforschung an der Humboldt-Universität zu Berlin; Invalidenstrasse 43; D-10115; Berlin; Germany
| | - Tomowo Ozawa
- Department of World Heritage; Cyber University; Nagoya Office; Ikegami-cho 2-7-1; Ikegami Jyutaku R203; Chikusa-ku; Nagoya; 464-0029; Japan
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