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Andreev IO, Parnikoza IY, Konvalyuk II, Metcheva R, Kozeretska IA, Kunakh VA. Genetic divergence of Deschampsia antarctica (Poaceae) population groups in the maritime Antarctic. Biol J Linn Soc Lond 2021. [DOI: 10.1093/biolinnean/blab141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
We used inter-simple sequence repeats and inter-retrotransposon amplified polymorphism markers to assess genetic variation in Deschampsia antarctica populations in the context of its uneven distribution in the northern and central maritime Antarctic. Genetic diversity and population structure and differentiation were assessed in nine populations from geographically isolated population groups of D. antarctica, including the South Shetland Islands, Anvers Island and the Argentine Islands regions. In total, 265 amplified DNA fragments were scored, of which 220 (83.0%) were polymorphic. The total sample showed low genetic diversity (unbiased expected heterozygosity = 0.081 and Shannon diversity index = 0.115) and high population differentiation (molecular variance among populations = 0.659). We also found a trend toward a decrease in genetic diversity and an increase in population differentiation toward the southern edge of the species range. Principal coordinates analysis of polymerase chain reaction data and Bayesian population structure analysis showed three main clusters, which included plants originating from three spatially isolated population groups. The unweighted pair group method with arithmetic mean clustering of populations based on Nei’s genetic distances was mainly in agreement with this pattern. Testing of isolation by distance using the Mantel test demonstrated a significant correlation between genetic and ln-transformed geographical distance (r = 0.703). The data obtained indicate that the geographically isolated D. antarctica populations in the maritime Antarctic might form genetic clusters within the total range.
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Affiliation(s)
- Igor O Andreev
- Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Ivan Yu Parnikoza
- Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
- National Antarctic Scientific Centre of Ukraine, Kyiv, Ukraine
| | - Iryna I Konvalyuk
- Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | | | | | - Viktor A Kunakh
- Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
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Scarpa F, Cossu P, Delogu V, Lai T, Sanna D, Leasi F, Norenburg JL, Curini-Galletti M, Casu M. Molecular support for morphology-based family-rank taxa: The contrasting cases of two families of Proseriata (Platyhelminthes). ZOOL SCR 2017. [DOI: 10.1111/zsc.12251] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Fabio Scarpa
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia; Archeozoologia e Genetica; Università di Sassari; Sassari Italy
| | - Piero Cossu
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia; Archeozoologia e Genetica; Università di Sassari; Sassari Italy
| | - Valentina Delogu
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia; Archeozoologia e Genetica; Università di Sassari; Sassari Italy
| | - Tiziana Lai
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia; Archeozoologia e Genetica; Università di Sassari; Sassari Italy
| | - Daria Sanna
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia; Archeozoologia e Genetica; Università di Sassari; Sassari Italy
| | - Francesca Leasi
- Department of Invertebrate Zoology; National Museum of Natural History; Smithsonian Institution; Washington DC USA
| | - Jon L. Norenburg
- Department of Invertebrate Zoology; National Museum of Natural History; Smithsonian Institution; Washington DC USA
| | - Marco Curini-Galletti
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia; Archeozoologia e Genetica; Università di Sassari; Sassari Italy
| | - Marco Casu
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia; Archeozoologia e Genetica; Università di Sassari; Sassari Italy
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Contrasting patterns of population structure and gene flow facilitate exploration of connectivity in two widely distributed temperate octocorals. Heredity (Edinb) 2017; 119:35-48. [PMID: 28295035 PMCID: PMC5520136 DOI: 10.1038/hdy.2017.14] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 02/03/2017] [Accepted: 02/17/2017] [Indexed: 12/13/2022] Open
Abstract
Connectivity is an important component of metapopulation dynamics in marine systems and can influence population persistence, migration rates and conservation decisions associated with Marine Protected Areas (MPAs). In this study, we compared the genetic diversity, gene flow and population structure of two octocoral species, Eunicella verrucosa and Alcyonium digitatum, in the northeast Atlantic (ranging from the northwest of Ireland and the southern North Sea, to southern Portugal), using two panels of 13 and 8 microsatellite loci, respectively. Our results identified regional genetic structure in E. verrucosa partitioned between populations from southern Portugal, northwest Ireland and Britain/France; subsequent hierarchical analysis of population structure also indicated reduced gene flow between southwest Britain and northwest France. However, over a similar geographical area, A. digitatum showed little evidence of population structure, suggesting high gene flow and/or a large effective population size; indeed, the only significant genetic differentiation detected in A. digitatum occurred between North Sea samples and those from the English Channel/northeast Atlantic. In both species the vast majority of gene flow originated from sample sites within regions, with populations in southwest Britain being the predominant source of contemporary exogenous genetic variants for the populations studied. Overall, historical patterns of gene flow appeared more complex, though again southwest Britain appeared to be an important source of genetic variation for both species. Our findings have major conservation implications, particularly for E. verrucosa, a protected species in UK waters and listed by the IUCN as ‘Vulnerable’, and for the designation and management of European MPAs.
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Scarpa F, Sanna D, Lai T, Cossu P, Curini-Galletti M, Casu M. New set of nuclear primers for the ribosomal regions in Proseriata (Platyhelminthes). CONSERV GENET RESOUR 2016. [DOI: 10.1007/s12686-016-0583-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Raupach MJ, Bininda-Emonds ORP, Knebelsberger T, Laakmann S, Pfaender J, Leese F. Phylogeographical analysis ofLigia oceanica(Crustacea: Isopoda) reveals two deeply divergent mitochondrial lineages. Biol J Linn Soc Lond 2014. [DOI: 10.1111/bij.12254] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Michael J. Raupach
- Deutsches Zentrum für Marine Biodiversitätsforschung; Senckenberg am Meer; Südstrand 44 26382 Wilhelmshaven Germany
| | - Olaf R. P. Bininda-Emonds
- AG Systematik und Evolutionsbiologie; Institut für Biologie und Umweltwissenschaften (IBU) - Fakultät V; Carl von Ossietzky Universität Oldenburg; Carl von Ossietzky Str. 9-11 26111 Oldenburg Germany
| | - Thomas Knebelsberger
- Deutsches Zentrum für Marine Biodiversitätsforschung; Senckenberg am Meer; Südstrand 44 26382 Wilhelmshaven Germany
| | - Silke Laakmann
- Deutsches Zentrum für Marine Biodiversitätsforschung; Senckenberg am Meer; Südstrand 44 26382 Wilhelmshaven Germany
| | - Jobst Pfaender
- Zoologisches Forschungsmuseum Alexander Koenig; Adenauerallee 160-162 53113 Bonn Germany
| | - Florian Leese
- Lehrstuhl für Evolutionsökologie und Biodiversität der Tiere; Ruhr-Universität Bochum; Universitätsstraße 150 44801 Bochum Germany
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Sanna D, Cossu P, Dedola GL, Scarpa F, Maltagliati F, Castelli A, Franzoi P, Lai T, Cristo B, Curini-Galletti M, Francalacci P, Casu M. Mitochondrial DNA reveals genetic structuring of Pinna nobilis across the Mediterranean Sea. PLoS One 2013; 8:e67372. [PMID: 23840684 PMCID: PMC3696058 DOI: 10.1371/journal.pone.0067372] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Accepted: 05/18/2013] [Indexed: 11/18/2022] Open
Abstract
Pinna nobilis is the largest endemic Mediterranean marine bivalve. During past centuries, various human activities have promoted the regression of its populations. As a consequence of stringent standards of protection, demographic expansions are currently reported in many sites. The aim of this study was to provide the first large broad-scale insight into the genetic variability of P. nobilis in the area that encompasses the western Mediterranean, Ionian Sea, and Adriatic Sea marine ecoregions. To accomplish this objective twenty-five populations from this area were surveyed using two mitochondrial DNA markers (COI and 16S). Our dataset was then merged with those obtained in other studies for the Aegean and Tunisian populations (eastern Mediterranean), and statistical analyses (Bayesian model-based clustering, median-joining network, AMOVA, mismatch distribution, Tajima's and Fu's neutrality tests and Bayesian skyline plots) were performed. The results revealed genetic divergence among three distinguishable areas: (1) western Mediterranean and Ionian Sea; (2) Adriatic Sea; and (3) Aegean Sea and Tunisian coastal areas. From a conservational point of view, populations from the three genetically divergent groups found may be considered as different management units.
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Affiliation(s)
- Daria Sanna
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia, Archeozoologia e Genetica, Università di Sassari, Sassari, Italy
| | - Piero Cossu
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia, Archeozoologia e Genetica, Università di Sassari, Sassari, Italy
| | - Gian Luca Dedola
- Dipartimento di Medicina Veterinaria - Sezione di Anatomia, Università di Sassari, Sassari, Italy
| | - Fabio Scarpa
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia, Archeozoologia e Genetica, Università di Sassari, Sassari, Italy
| | | | | | - Piero Franzoi
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Cà Foscari, Venezia, Italy
| | - Tiziana Lai
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia, Archeozoologia e Genetica, Università di Sassari, Sassari, Italy
| | - Benedetto Cristo
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia, Archeozoologia e Genetica, Università di Sassari, Sassari, Italy
| | - Marco Curini-Galletti
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia, Archeozoologia e Genetica, Università di Sassari, Sassari, Italy
| | - Paolo Francalacci
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia, Archeozoologia e Genetica, Università di Sassari, Sassari, Italy
| | - Marco Casu
- Dipartimento di Scienze della Natura e del Territorio - Sezione di Zoologia, Archeozoologia e Genetica, Università di Sassari, Sassari, Italy
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Curini-Galletti M, Artois T, Delogu V, De Smet WH, Fontaneto D, Jondelius U, Leasi F, Martínez A, Meyer-Wachsmuth I, Nilsson KS, Tongiorgi P, Worsaae K, Todaro MA. Patterns of diversity in soft-bodied meiofauna: dispersal ability and body size matter. PLoS One 2012; 7:e33801. [PMID: 22457790 PMCID: PMC3311549 DOI: 10.1371/journal.pone.0033801] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Accepted: 02/17/2012] [Indexed: 11/30/2022] Open
Abstract
Background Biogeographical and macroecological principles are derived from patterns of distribution in large organisms, whereas microscopic ones have often been considered uninteresting, because of their supposed wide distribution. Here, after reporting the results of an intensive faunistic survey of marine microscopic animals (meiofauna) in Northern Sardinia, we test for the effect of body size, dispersal ability, and habitat features on the patterns of distribution of several groups. Methodology/Principal Findings As a dataset we use the results of a workshop held at La Maddalena (Sardinia, Italy) in September 2010, aimed at studying selected taxa of soft-bodied meiofauna (Acoela, Annelida, Gastrotricha, Nemertodermatida, Platyhelminthes and Rotifera), in conjunction with data on the same taxa obtained during a previous workshop hosted at Tjärnö (Western Sweden) in September 2007. Using linear mixed effects models and model averaging while accounting for sampling bias and potential pseudoreplication, we found evidence that: (1) meiofaunal groups with more restricted distribution are the ones with low dispersal potential; (2) meiofaunal groups with higher probability of finding new species for science are the ones with low dispersal potential; (3) the proportion of the global species pool of each meiofaunal group present in each area at the regional scale is negatively related to body size, and positively related to their occurrence in the endobenthic habitat. Conclusion/Significance Our macroecological analysis of meiofauna, in the framework of the ubiquity hypothesis for microscopic organisms, indicates that not only body size but mostly dispersal ability and also occurrence in the endobenthic habitat are important correlates of diversity for these understudied animals, with different importance at different spatial scales. Furthermore, since the Western Mediterranean is one of the best-studied areas in the world, the large number of undescribed species (37%) highlights that the census of marine meiofauna is still very far from being complete.
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Affiliation(s)
- Marco Curini-Galletti
- Dipartimento di Zoologia e Genetica Evoluzionistica, Università di Sassari, Sassari, Italy
| | - Tom Artois
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Valentina Delogu
- Dipartimento di Zoologia e Genetica Evoluzionistica, Università di Sassari, Sassari, Italy
| | | | - Diego Fontaneto
- Department of Invertebrate Zoology, Swedish Museum of Natural History, Stockholm, Sweden
- Division of Biology, Imperial College London, Ascot, United Kingdom
| | - Ulf Jondelius
- Department of Invertebrate Zoology, Swedish Museum of Natural History, Stockholm, Sweden
| | - Francesca Leasi
- Division of Biology, Imperial College London, Ascot, United Kingdom
- Dipartimento di Biologia, Universtità di Modena e Reggio Emilia, Modena, Italy
| | | | - Inga Meyer-Wachsmuth
- Department of Invertebrate Zoology, Swedish Museum of Natural History, Stockholm, Sweden
| | - Karin Sara Nilsson
- Department of Invertebrate Zoology, Swedish Museum of Natural History, Stockholm, Sweden
| | - Paolo Tongiorgi
- Dipartimento di Biologia, Universtità di Modena e Reggio Emilia, Modena, Italy
| | - Katrine Worsaae
- Marine Biological Section, University of Copenhagen, Helsingør, Denmark
| | - M. Antonio Todaro
- Dipartimento di Biologia, Universtità di Modena e Reggio Emilia, Modena, Italy
- * E-mail:
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Fernández MV, Maltagliati F, Pannacciulli FG, Roldán MI. Analysis of genetic variability in Aristaeomorpha foliacea (crustacea, aristeidae) using DNA-ISSR (Inter Simple Sequence Repeats) markers. C R Biol 2011; 334:705-12. [PMID: 21943519 DOI: 10.1016/j.crvi.2011.07.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2011] [Revised: 07/12/2011] [Accepted: 07/12/2011] [Indexed: 11/16/2022]
Abstract
This work reports the first genetic data of Aristaeomorpha foliacea, a marine decapod of high commercial value, from six Mediterranean localities and one new fishing ground in the Mozambique Channel. The use of five Inter Simple Sequence Repeat (ISSR) primers provided 150 polymorphic loci. Average estimates of genetic diversity did not significantly differ among sampled localities, with a mean value of heterozygosity H=0.105±0.015. Analysis of molecular variance (AMOVA) allocated>98% of genetic variability to the within-sample component, displaying values higher than those previously reported in ISSR studies on marine invertebrates. Cluster analyses did not detect geographically or genetically distinct groups. The observed lack of large-scale genetic differentiation is discussed in relation to the high potential for larval dispersal of the species and to features of the marker employed.
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