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Distribution and Ecology of Decapod Crustaceans in Mediterranean Marine Caves: A Review. DIVERSITY 2022. [DOI: 10.3390/d14030176] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Decapod crustaceans are important components of the fauna of marine caves worldwide, yet information on their ecology is still scarce. Mediterranean marine caves are perhaps the best known of the world and may offer paradigms to the students of marine cave decapods from other geographic regions. This review summarizes and updates the existing knowledge about the decapod fauna of Mediterranean marine caves on the basis of a dataset of 76 species from 133 caves in 13 Mediterranean countries. Most species were found occasionally, while 15 species were comparatively frequent (found in at least seven caves). They comprise cryptobiotic and bathyphilic species that only secondarily colonize caves (secondary stygobiosis). Little is known about the population biology of cave decapods, and quantitative data are virtually lacking. The knowledge on Mediterranean marine cave decapods is far from being complete. Future research should focus on filling regional gaps and on the decapod ecological role: getting out at night to feed and resting in caves during daytime, decapods may import organic matter to the cave ecosystem. Some decapod species occurring in caves are protected by law. Ecological interest and the need for conservation initiatives combine to claim for intensifying research on the decapod fauna of the Mediterranean Sea caves.
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2
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OUP accepted manuscript. Zool J Linn Soc 2022. [DOI: 10.1093/zoolinnean/zlac032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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3
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Bowen BW, Forsman ZH, Whitney JL, Faucci A, Hoban M, Canfield SJ, Johnston EC, Coleman RR, Copus JM, Vicente J, Toonen RJ. Species Radiations in the Sea: What the Flock? J Hered 2021; 111:70-83. [PMID: 31943081 DOI: 10.1093/jhered/esz075] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 11/06/2019] [Indexed: 12/13/2022] Open
Abstract
Species flocks are proliferations of closely-related species, usually after colonization of depauperate habitat. These radiations are abundant on oceanic islands and in ancient freshwater lakes, but rare in marine habitats. This contrast is well documented in the Hawaiian Archipelago, where terrestrial examples include the speciose silverswords (sunflower family Asteraceae), Drosophila fruit flies, and honeycreepers (passerine birds), all derived from one or a few ancestral lineages. The marine fauna of Hawai'i is also the product of rare colonization events, but these colonizations usually yield only one species. Dispersal ability is key to understanding this evolutionary inequity. While terrestrial fauna rarely colonize between oceanic islands, marine fauna with pelagic larvae can make this leap in every generation. An informative exception is the marine fauna that lack a pelagic larval stage. These low-dispersal species emulate a "terrestrial" mode of reproduction (brooding, viviparity, crawl-away larvae), yielding marine species flocks in scattered locations around the world. Elsewhere, aquatic species flocks are concentrated in specific geographic settings, including the ancient lakes of Baikal (Siberia) and Tanganyika (eastern Africa), and Antarctica. These locations host multiple species flocks across a broad taxonomic spectrum, indicating a unifying evolutionary phenomenon. Hence marine species flocks can be singular cases that arise due to restricted dispersal or other intrinsic features, or they can be geographically clustered, promoted by extrinsic ecological circumstances. Here, we review and contrast intrinsic cases of species flocks in individual taxa, and extrinsic cases of geological/ecological opportunity, to elucidate the processes of species radiations.
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Affiliation(s)
- Brian W Bowen
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
| | - Zac H Forsman
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
| | - Jonathan L Whitney
- Joint Institute for Marine and Atmospheric Research, University of Hawai'i, Honolulu, HI
| | - Anuschka Faucci
- Math & Sciences Division, Leeward Community College, University of Hawai'i, Pearl City, HI
| | - Mykle Hoban
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
| | | | - Erika C Johnston
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
| | - Richard R Coleman
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
| | - Joshua M Copus
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
| | - Jan Vicente
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
| | - Robert J Toonen
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
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4
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Rindi F, Pasella MM, Lee MFE, Verbruggen H. Phylogeography of the mediterranean green seaweed Halimeda tuna (Ulvophyceae, Chlorophyta). JOURNAL OF PHYCOLOGY 2020; 56:1109-1113. [PMID: 32315445 DOI: 10.1111/jpy.13006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/03/2020] [Indexed: 06/11/2023]
Abstract
Populations of many Mediterranean marine species show a strong phylogeographic structure, but the knowledge available for native seaweeds is limited. We investigated the genetic diversity of the green alga Halimeda tuna based on two plastid markers (tufA gene and a newly developed amplicon spanning five ribosomal protein genes and intergenic spacers, the rpl2-rpl14 region). The tufA sequences showed that Mediterranean H. tuna represents a single, well-defined species. The rpl2-rpl14 results highlighted a genetic separation between western and eastern Mediterranean populations; specimens collected from widely scattered locations in the Adriatic/Ionian region shared a haplotype unique to this region, and formed a group separated from all western Mediterranean regions. Specimens from Sardinia also formed a unique haplotype. Within the western Mediterranean basin, a gradual shift in the frequency of haplotypes was apparent along a West-East gradient. Our results represent the first clear evidence of an East-West genetic cleavage in a native Mediterranean macroalga and offer an interesting perspective for further research into fine-scale seaweed population structure in the NW Mediterranean Sea.
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Affiliation(s)
- Fabio Rindi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, Ancona, 60131, Italy
| | - Marisa M Pasella
- School of BioSciences, University of Melbourne, Victoria, 3010, Australia
| | - Ming-Fen E Lee
- School of BioSciences, University of Melbourne, Victoria, 3010, Australia
| | - Heroen Verbruggen
- School of BioSciences, University of Melbourne, Victoria, 3010, Australia
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5
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Lunina AA, Nikitin MA, Shiian AS, Ereskovsky AV, Kovtun OA, Vereshchaka AL, Ivanenko VN. Integrative taxonomy of the cave-dwelling mysids of the genus Hemimysis. SYST BIODIVERS 2019. [DOI: 10.1080/14772000.2019.1596175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Anastasia A. Lunina
- Shirshov Institute of Oceanology, Russian Academy of Sciences, 36, Nahimovskiy prospekt, Moscow, 117997, Russia
| | - Mikhail A. Nikitin
- Belozersky Institute of Physico-chemical Biology, Lomonosov Moscow State University, Leninskie Gory, 1-12, Moscow, 119992, Russia
| | - Aleksandra S. Shiian
- Department of Invertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Leninskie Gory, 1-12, Moscow, 119992, Russia
| | - Alexander V. Ereskovsky
- Mediterranean Institute of Marine and Terrestrial Biodiversity and Ecology (IMBE), Aix Marseille University, CNRS, IRD, Avignon Université, Station marine d'Endoume, rue de la Batterie des Lions, Marseille, 13007, France
- Biological Faculty, Saint-Petersburg State University, 199034 Universitetskaya nab. 7/9, St. Petersburg, Russia
| | - Oleg A. Kovtun
- Hydrobiology and General Ecology Department, Odessa National I. I. Mechnikov University, Marine Research Station, st. Dvoryanska, 2, Odessa, 65026, Ukraine
| | - Alexander L. Vereshchaka
- Shirshov Institute of Oceanology, Russian Academy of Sciences, 36, Nahimovskiy prospekt, Moscow, 117997, Russia
| | - Viatcheslav N. Ivanenko
- Department of Invertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Leninskie Gory, 1-12, Moscow, 119992, Russia
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Vitales D, Aragay J, Garnatje T, Gómez Garreta A, Rull Lluch J. Phylogeography of Dictyota fasciola and Dictyota mediterranea (Dictyotales, Phaeophyceae): unexpected patterns on the Atlantic-Mediterranean marine transition and taxonomic implications. PeerJ 2019; 7:e6916. [PMID: 31143543 PMCID: PMC6526009 DOI: 10.7717/peerj.6916] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 04/06/2019] [Indexed: 12/25/2022] Open
Abstract
The Atlantic-Mediterranean marine transition is a fascinating biogeographic region, but still very poorly studied from the point of view of seaweed phylogeography. Dictyota fasciola and D. mediterranea (Dictyotales, Phaeophyceae) are two currently recognized sister species that share a large part of their distribution along the Mediterranean Sea and the Atlantic Ocean, representing a unique study model to understand the diversification processes experienced by macroalgae during and after Messinian at this marine region. In this study, we sampled 102 individuals of D. fasciola and D. mediterranea from 32 localities along their distribution range and sequenced the mitochondrial cox1 and the chloroplast rbcL-rbcS DNA regions for all the samples. Our data do not support the occurrence of two sister species but a morphologically variable and highly genetic diverse species or a complex of species. Most of the observed genetic diversity corresponds to the Mediterranean populations, whereas the Atlantic ones are much more homogeneous. The early-diverged lineages inferred from both mtDNA and cpDNA phylogenetic reconstructions were constituted by samples from the Mediterranean Sea. Together, these results suggest that the Mediterranean Sea acted as a refugium for the D. fasciola–D. mediterranea lineage during the geologic and climatic changes occurred on the region since the Miocene, subsequently dispersing to the Atlantic Ocean.
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Affiliation(s)
- Daniel Vitales
- Institut Botànic de Barcelona (IBB, CSIC-ICUB), Barcelona, Catalonia, Spain
| | - Joana Aragay
- Institut Botànic de Barcelona (IBB, CSIC-ICUB), Barcelona, Catalonia, Spain.,Laboratori de Botànica, Facultat de Farmàcia i Ciències de l'Alimentació & Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Teresa Garnatje
- Institut Botànic de Barcelona (IBB, CSIC-ICUB), Barcelona, Catalonia, Spain
| | - Amelia Gómez Garreta
- Laboratori de Botànica, Facultat de Farmàcia i Ciències de l'Alimentació & Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Jordi Rull Lluch
- Laboratori de Botànica, Facultat de Farmàcia i Ciències de l'Alimentació & Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Barcelona, Catalonia, Spain
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7
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Katz AD, Taylor SJ, Davis MA. At the confluence of vicariance and dispersal: Phylogeography of cavernicolous springtails (Collembola: Arrhopalitidae, Tomoceridae) codistributed across a geologically complex karst landscape in Illinois and Missouri. Ecol Evol 2018; 8:10306-10325. [PMID: 30397468 PMCID: PMC6206200 DOI: 10.1002/ece3.4507] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/06/2018] [Accepted: 08/08/2018] [Indexed: 01/11/2023] Open
Abstract
The processes of vicariance and dispersal are central to our understanding of diversification, yet determining the factors that influence these processes remains a significant challenge in evolutionary biology. Caves offer ideal systems for examining the mechanisms underlying isolation, divergence, and speciation. Intrinsic ecological differences among cavernicolous organisms, such as the degree of cave dependence, are thought to be major factors influencing patterns of genetic isolation in caves. Using a comparative phylogeographic approach, we employed mitochondrial and nuclear markers to assess the evolutionary history of two ecologically distinct groups of terrestrial cave-dwelling springtails (Collembola) in the genera Pygmarrhopalites (Arrhopalitidae) and Pogonognathellus (Tomoceridae) that are codistributed in caves throughout the Salem Plateau-a once continuous karst region, now bisected by the Mississippi River Valley in Illinois and Missouri. Contrasting phylogeographic patterns recovered for troglobiotic Pygmarrhopalites sp. and eutroglophilic Pogonognathellus sp. suggests that obligate associations with cave habitats can restrict dispersal across major geographic barriers such as rivers and valleys, but may also facilitate subterranean dispersal between neighboring cave systems. Pygmarrhopalites sp. populations spanning the Mississippi River Valley were estimated to have diverged 2.9-4.8 Ma, which we attribute to vicariance resulting from climatic and geological processes involved in Mississippi River Valley formation beginning during the late Pliocene/early Pleistocene. Lastly, we conclude that the detection of many deeply divergent, morphologically cryptic, and microendemic lineages highlights our poor understanding of microarthropod diversity in caves and exposes potential conservation concerns.
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Affiliation(s)
- Aron D. Katz
- Department of EntomologyUniversity of Illinois at Urbana‐ChampaignUrbanaIllinoisUSA
- Illinois Natural History SurveyPrairie Research InstituteUniversity of Illinois at Urbana‐ChampaignChampaignIllinoisUSA
| | - Steven J. Taylor
- Illinois Natural History SurveyPrairie Research InstituteUniversity of Illinois at Urbana‐ChampaignChampaignIllinoisUSA
- Present address:
Office of General StudiesColorado CollegeColorado SpringsColoradoUSA
| | - Mark A. Davis
- Illinois Natural History SurveyPrairie Research InstituteUniversity of Illinois at Urbana‐ChampaignChampaignIllinoisUSA
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Cahill AE, De Jode A, Dubois S, Bouzaza Z, Aurelle D, Boissin E, Chabrol O, David R, Egea E, Ledoux JB, Mérigot B, Weber AAT, Chenuil A. A multispecies approach reveals hot spots and cold spots of diversity and connectivity in invertebrate species with contrasting dispersal modes. Mol Ecol 2017; 26:6563-6577. [PMID: 29087018 DOI: 10.1111/mec.14389] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 09/18/2017] [Indexed: 12/18/2022]
Abstract
Genetic diversity is crucial for species' maintenance and persistence, yet is often overlooked in conservation studies. Species diversity is more often reported due to practical constraints, but it is unknown if these measures of diversity are correlated. In marine invertebrates, adults are often sessile or sedentary and populations exchange genes via dispersal of gametes and larvae. Species with a larval period are expected to have more connected populations than those without larval dispersal. We assessed the relationship between measures of species and genetic diversity, and between dispersal ability and connectivity. We compiled data on genetic patterns and life history traits in nine species across five phyla. Sampling sites spanned 600 km in the northwest Mediterranean Sea and focused on a 50-km area near Marseilles, France. Comparative population genetic approaches yielded three main results. (i) Species without larvae showed higher levels of genetic structure than species with free-living larvae, but the role of larval type (lecithotrophic or planktotrophic) was negligible. (ii) A narrow area around Marseilles, subject to offshore advection, limited genetic connectivity in most species. (iii) We identified sites with significant positive contributions to overall genetic diversity across all species, corresponding with areas near low human population densities. In contrast, high levels of human activity corresponded with a negative contribution to overall genetic diversity. Genetic diversity within species was positively and significantly linearly related to local species diversity. Our study suggests that local contribution to overall genetic diversity should be taken into account for future conservation strategies.
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Affiliation(s)
- Abigail E Cahill
- Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France.,Biology Department, Albion College, Albion, MI, USA
| | - Aurélien De Jode
- Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France
| | - Sophie Dubois
- Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France
| | - Zoheir Bouzaza
- Département de Biologie, Faculté des Sciences de la Nature et de la Vie, Université Abdelhamid Ibn Badis, Mostaganem, Algérie
| | - Didier Aurelle
- Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France
| | - Emilie Boissin
- PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, Perpignan, France
| | - Olivier Chabrol
- CNRS, Centrale Marseille, I2M, UMR7373, Aix-Marseille Université, Marseille, France
| | - Romain David
- Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France
| | - Emilie Egea
- Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France
| | - Jean-Baptiste Ledoux
- CIIMAR/CIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Porto, Portugal.,Institute of Marine Sciences (ICM-CSIC), Barcelona, Spain
| | - Bastien Mérigot
- UMR MARBEC (CNRS, Ifremer, IRD, UM), Université de Montpellier, Sète, France
| | - Alexandra Anh-Thu Weber
- Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France.,Zoological Institute, University of Basel, Basel, Switzerland
| | - Anne Chenuil
- Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France
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El Ayari T, Trigui El Menif N, Saavedra C, Cordero D, Viard F, Bierne N. Unexpected mosaic distribution of two hybridizing sibling lineages in the teleplanically dispersing snail Stramonita haemastoma suggests unusual postglacial redistribution or cryptic invasion. Ecol Evol 2017; 7:9016-9026. [PMID: 29177037 PMCID: PMC5689492 DOI: 10.1002/ece3.3418] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 08/04/2017] [Accepted: 08/11/2017] [Indexed: 01/29/2023] Open
Abstract
Molecular approaches have proven efficient to identify cryptic lineages within single taxonomic entities. Sometimes these cryptic lineages maybe previously unreported or unknown invasive taxa. The genetic structure of the marine gastropod Stramonita haemastoma has been examined in the Western Mediterranean and North‐Eastern Atlantic populations with mtDNA COI sequences and three newly developed microsatellite markers. We identified two cryptic lineages, differentially fixed for alternative mtDNA COI haplogroups and significantly differentiated at microsatellite loci. The mosaic distribution of the two lineages is unusual for a warm‐temperate marine invertebrate with a teleplanic larval stage. The Atlantic lineage was unexpectedly observed as a patch enclosed in the north of the Western Mediterranean Sea between eastern Spain and the French Riviera, and the Mediterranean lineage was found in Macronesian Islands. Although cyto‐nuclear disequilibrium is globally maintained, asymmetric introgression occurs in the Spanish region where the two lineages co‐occur in a hybrid zone. A first interpretation of our results is mito‐nuclear discordance in a stable postglacial hybrid zone. Under this hypothesis, though, the location of genetic discontinuities would be unusual among planktonic dispersers. An alternative interpretation is that the Atlantic lineage, also found in Senegal and Venezuela, has been introduced by human activities in the Mediterranean area and is introgressing Mediterranean genes during its propagation, as theoretically expected. This second hypothesis would add an additional example to the growing list of cryptic marine invasions revealed by molecular studies.
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Affiliation(s)
- Tahani El Ayari
- Université de Montpellier Montpellier Cedex 5 France.,ISEM - CNRS UMR 5554 Station Marine OREME Sète France.,Laboratory of Environment Bio-monitoring Faculty of Sciences of Bizerta University of Carthage Bizerta Tunisia
| | - Najoua Trigui El Menif
- Laboratory of Environment Bio-monitoring Faculty of Sciences of Bizerta University of Carthage Bizerta Tunisia
| | - Carlos Saavedra
- Instituto de Acuicultura Torre de la Sal Consejo Superior de Investigaciones Cientίficas Ribera de Cabanes (Castellόn) Spain
| | - David Cordero
- Instituto de Acuicultura Torre de la Sal Consejo Superior de Investigaciones Cientίficas Ribera de Cabanes (Castellόn) Spain
| | - Frédérique Viard
- UPMC Université Paris 6CNRS UMR 7144 Adaptation et Diversité en Milieu Marin Equipe DIVCO Station Biologique de Roscoff Sorbonne Université Roscoff France
| | - Nicolas Bierne
- Université de Montpellier Montpellier Cedex 5 France.,ISEM - CNRS UMR 5554 Station Marine OREME Sète France
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Chen W, Zhong Z, Dai W, Fan Q, He S. Phylogeographic structure, cryptic speciation and demographic history of the sharpbelly (Hemiculter leucisculus), a freshwater habitat generalist from southern China. BMC Evol Biol 2017; 17:216. [PMID: 28899345 PMCID: PMC5596851 DOI: 10.1186/s12862-017-1058-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 08/30/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Species with broad distributions frequently divide into multiple genetic forms and may therefore be viewed as "cryptic species". Here, we used the mitochondrial cytochrome b (Cytb) and 12 nuclear DNA loci to investigate phylogeographic structures of the sharpbelly (Hemiculter leucisculus) in rivers in southern China and explored how the geological and climatic factors have shaped the genetic diversity and evolutionary history of this species. RESULTS Our mitochondrial phylogenetic analysis identified three major lineages (lineages A, B, and C). Lineages B and C showed a relatively narrower geographic distribution, whereas lineage A was widely distributed in numerous drainages. Divergence dates suggested that H. leucisculus populations diverged between 1.61-2.38 Ma. Bayesian species delimitation analysis using 12 nuclear DNA loci indicated the three lineages probably represented three valid taxa. Isolation-with-migration (IM) analysis found substantial gene flow has occurred among the three lineages. Demographic analyses showed that lineages B and C have experienced rapid demographic expansion at 0.03 Ma and 0.08 Ma, respectively. CONCLUSIONS Hemiculter leucisculus populations in drainages in southern China comprise three mtDNA lineages, and each of which may represent a separate species. Intense uplift of the Qinghai-Tibetan Plateau, evolution of Asian monsoons, changes in paleo-drainages, and poor dispersal ability may have driven the divergence of the three putative species. However, gene flow occurs among the three lineages. Climatic fluctuations have a prominent impact on the populations from the lineages B and C, but exerted little influence on the lineage A.
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Affiliation(s)
- Weitao Chen
- The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, 430072, China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Zaixuan Zhong
- The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, 430072, China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Wei Dai
- The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, 430072, China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Qi Fan
- The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, 430072, China
| | - Shunping He
- The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, 430072, China.
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11
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Pezzolesi L, Falace A, Kaleb S, Hernandez-Kantun JJ, Cerrano C, Rindi F. Genetic and morphological variation in an ecosystem engineer, Lithophyllum byssoides (Corallinales, Rhodophyta). JOURNAL OF PHYCOLOGY 2017; 53:146-160. [PMID: 27809349 DOI: 10.1111/jpy.12488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 08/26/2016] [Indexed: 06/06/2023]
Abstract
Lithophyllum byssoides is a common coralline alga in the intertidal zone of Mediterranean coasts, where it produces biogenic concretions housing a high algal and invertebrate biodiversity. This species is an ecosystem engineer and is considered a target for conservation efforts, but designing effective conservation strategies currently is impossible due to lack of information about its population structure. The morphological and molecular variation of L. byssoides was investigated using morphoanatomy and DNA sequences (psbA and cox2,3) obtained from populations at 15 localities on the Italian and Croatian coasts. Lithophyllum byssoides exhibited a high number of haplotypes (31 psbA haplotypes and 24 cox2,3 haplotypes) in the central Mediterranean. The psbA and cox2,3 phylogenies were congruent and showed seven lineages. For most of these clades, the distribution was limited to one or a few localities, but one of them (clade 7) was widespread across the central Mediterranean, spanning the main biogeographic boundaries recognized in this area. The central Mediterranean populations formed a lineage separate from Atlantic samples; psbA pair-wise divergences suggested that recognition of Atlantic and Mediterranean L. byssoides as different species may be appropriate. The central Mediterranean haplotype patterns of L. byssoides were interpreted as resulting from past climatic events in the hydrogeological history of the Mediterranean Sea. The high haplotype diversity and the restricted spatial distribution of the seven lineages suggest that individual populations should be managed as independent units.
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Affiliation(s)
- Laura Pezzolesi
- Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Via Sant'Alberto 163, I-48123, Ravenna, Italy
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, I-60131, Ancona, Italy
| | - Annalisa Falace
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 1, I-34127, Trieste, Italy
| | - Sara Kaleb
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 1, I-34127, Trieste, Italy
| | - Jazmin J Hernandez-Kantun
- Botany Department, National Museum of Natural History, Smithsonian Institution, MRC 166 PO Box 37012, Washington, District of Columbia, USA
| | - Carlo Cerrano
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, I-60131, Ancona, Italy
| | - Fabio Rindi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, I-60131, Ancona, Italy
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12
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Neiva J, Serrão EA, Anderson L, Raimondi PT, Martins N, Gouveia L, Paulino C, Coelho NC, Miller KA, Reed DC, Ladah LB, Pearson GA. Cryptic diversity, geographical endemism and allopolyploidy in NE Pacific seaweeds. BMC Evol Biol 2017; 17:30. [PMID: 28114901 PMCID: PMC5260064 DOI: 10.1186/s12862-017-0878-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 01/10/2017] [Indexed: 11/10/2022] Open
Abstract
Background Molecular markers are revealing a much more diverse and evolutionarily complex picture of marine biodiversity than previously anticipated. Cryptic and/or endemic marine species are continually being found throughout the world oceans, predominantly in inconspicuous tropical groups but also in larger, canopy-forming taxa from well studied temperate regions. Interspecific hybridization has also been found to be prevalent in many marine groups, for instance within dense congeneric assemblages, with introgressive gene-flow being the most common outcome. Here, using a congeneric phylogeographic approach, we investigated two monotypic and geographically complementary sister genera of north-east Pacific intertidal seaweeds (Hesperophycus and Pelvetiopsis), for which preliminary molecular tests revealed unexpected conflicts consistent with unrecognized cryptic diversity and hybridization. Results The three recovered mtDNA clades did not match a priori species delimitations. H. californicus was congruent, whereas widespread P. limitata encompassed two additional narrow-endemic species from California - P. arborescens (here genetically confirmed) and P. hybrida sp. nov. The congruence between the genotypic clusters and the mtDNA clades was absolute. Fixed heterozygosity was apparent in a high proportion of loci in P. limitata and P. hybrida, with genetic analyses showing that the latter was composed of both H. californicus and P. arborescens genomes. All four inferred species could be distinguished based on their general morphology. Conclusions This study confirmed additional diversity and reticulation within NE Pacific Hesperophycus/Pelvetiopsis, including the validity of the much endangered, modern climatic relict P. arborescens, and the identification of a new, stable allopolyploid species (P. hybrida) with clearly discernable ancestry (♀ H. californicus x ♂ P. arborescens), morphology, and geographical distribution. Allopolyploid speciation is otherwise completely unknown in brown seaweeds, and its unique occurrence within this genus (P. limitata possibly representing a second example) remains enigmatic. The taxonomic separation of Hesperophycus and Pelvetiopsis is not supported and the genera should be synonymized; we retain only the latter. The transitional coastline between Point Conception and Monterey Bay represented a diversity hotspot for the genus and the likely sites of extraordinary evolutionary events of allopolyploid speciation at sympatric range contact zones. This study pinpoints how much diversity (and evolutionary processes) potentially remains undiscovered even on a conspicuous seaweed genus from the well-studied Californian intertidal shores let alone in other, less studied marine groups and regions/depths. Electronic supplementary material The online version of this article (doi:10.1186/s12862-017-0878-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- João Neiva
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal.
| | - Ester A Serrão
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
| | - Laura Anderson
- Long Marine Laboratory, University of California, Santa Cruz, USA
| | - Peter T Raimondi
- Long Marine Laboratory, University of California, Santa Cruz, USA
| | - Neusa Martins
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
| | - Licínia Gouveia
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
| | - Cristina Paulino
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
| | - Nelson C Coelho
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
| | | | - Daniel C Reed
- Marine Science Institute, University of California, Santa Barbara, USA
| | - Lydia B Ladah
- CICESE - Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Mexico
| | - Gareth A Pearson
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
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Koulouri P, Gerovasileiou V, Bailly N. Mysida and Lophogastrida of Greece: a preliminary checklist. Biodivers Data J 2016:e9288. [PMID: 27932912 PMCID: PMC5136656 DOI: 10.3897/bdj.4.e9288] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 07/17/2016] [Indexed: 12/04/2022] Open
Abstract
Background The checklist of Mysida and Lophogastrida of Greece was created within the framework of the Greek Taxon Information System (GTIS), which is one of the applications of the LifeWatchGreece Research Infrastructure (ESFRI) resuming efforts to develop a complete checklist of species recorded and reported from Greek waters. The objectives of the present study were to update and cross-check taxonomically all records of Mysida and Lophogastrida species known to occur in Greek waters in order to search for inaccuracies and omissions. New information The up-to-date checklist of Mysida and Lophogastrida of Greece comprises 49 species, classified to 25 genera.
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Affiliation(s)
- Panayota Koulouri
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Heraklion, Greece
| | - Vasilis Gerovasileiou
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Heraklion, Greece
| | - Nicolas Bailly
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Heraklion, Greece
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