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Cryptic lineages in the Wolf Cardinalfish living in sympatry on remote coral atolls

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dc.contributor Govt Western Australia
dc.contributor South African Institute For Aquatic Biodiversity
dc.contributor Dept Primary Ind & Reg Dev
dc.contributor Indian Oceans Marine Res Ctr
dc.contributor Natl Res Fdn
dc.contributor National Research Foundation - South Africa
dc.contributor Western Australian Fisheries & Marine Res Labs
dc.contributor Australian Inst Marine Sci
dc.contributor Australian Institute Of Marine Science
dc.contributor South African Inst Aquat Biodivers
dc.contributor Government Of Western Australia PUOTINEN, MARJI TRAVERS, MICHAEL J. SNOW, MICHAEL GOUWS, GAVIN UNDERWOOD, JIM N. 2019-02-10T18:43:11Z 2019-02-10T18:43:11Z 2019-07-08T02:08:29Z 2019-02-10T18:43:11Z 2019-02-10T18:43:11Z 2019-07-08T02:08:29Z 2019-03-01
dc.identifier.citation Underwood JN, Travers MJ, Snow M, Puotinen M, Gouws G (2019) Cryptic lineages in the Wolf Cardinalfish living in sympatry on remote coral atolls. Molecular Phylogenetics and Evolution 132: 183-193
dc.identifier.issn 1055-7903
dc.description.abstract Coral reef health and biodiversity is under threat worldwide due to rapid climate change. However, much of the inter- and intra-specific diversity of coral reefs are undescribed even in well studied taxa such as fish. Delimiting previously unrecognised diversity is important for understanding the processes that generate and sustain biodiversity in coral reef ecosystems and informing strategies for their conservation and management. Many taxa that inhabit geographically isolated coral reefs rely on self-recruitment for population persistence, providing the opportunity for the evolution of unique genetic lineages through divergent selection and reproductive isolation. Many such lineages in corals and fish are morphologically similar or indistinguishable. Here, we report the discovery and characterisation of cryptic lineages of the Wolf Cardinalfish, Cheilodipterus artus, from the coral atolls of northwest Australia using multiple molecular markers from mitochondrial (CO1 and D-loop) and nuclear (microsatellites) DNA. Concordant results from all markers identified two highly divergent lineages that are morphologically cryptic and reproductively isolated. These lineages co-occurred at daytime resting sites, but the relative abundance of each lineage was strongly correlated with wave exposure. It appears, therefore, that fish from each lineage are better adapted to different microhabitats. Such cryptic and ecologically based diversity appears to be common in these atolls and may well aid resilience of these systems. Our results also highlight that underwater surveys based on visual identification clearly underestimate biodiversity, and that a taxonomic revision of the Cheilodipterus genus is necessary.
dc.description.sponsorship Our thanks to James Gilmour and to Luke Smith for support throughout this project. Also thanks to Kim Brooks, Derek Dufall, Chico Birrell and Glen Allen, for help with the collections, and to Gerry Allen and Ofer Gon for assistance with morphological assessments. Our appreciation to Joseph DiBattista for reviewing an early version of the manuscript. The majority of funding was sourced from the Australian Institute of Marine Science and Woodside Energy Limited, while laboratory analyses conducted at NRF-SAIAB were funded by NRF-SAIAB and the National Research Foundati on of South Africa. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
dc.language English
dc.subject Reef
dc.subject Self-recruitment
dc.subject Reveals
dc.subject Molecular Systematics
dc.subject Conservation
dc.subject Connectivity
dc.subject Evolutionarily Significant Unit
dc.subject Evolutionary Biology
dc.subject Climate-change
dc.subject Populations
dc.subject Phylogeography
dc.subject Site Fidelity
dc.subject Cryptic Diversity
dc.subject Apogonidae
dc.subject Dna
dc.subject Genetics & Heredity
dc.subject Biochemistry & Molecular Biology
dc.subject Ecological Divergence
dc.subject Cheilodipterus Artus
dc.title Cryptic lineages in the Wolf Cardinalfish living in sympatry on remote coral atolls
dc.type journal article
dc.identifier.doi 10.1016/j.ympev.2018.12.001
dc.identifier.wos WOS:000456566000014

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