Posidonia oceanica in the Marmara Sea

被引:24
作者
Meinesz, A. [1 ]
Cirik, S. [2 ,3 ]
Akcali, B. [3 ]
Javel, F. [1 ]
Migliaccio, M. [4 ]
Thibaut, T. [1 ]
Yuksek, A. [5 ]
Procaccini, G. [4 ]
机构
[1] Univ Nice Sophia Antipolis, EA 4228 ECOMERS, Lab Environm Marin Littoral, F-06108 Nice 2, France
[2] Canakkale Onsekiz Mart Univ, Fac Fisheries, TR-17100 Canakkale, Turkey
[3] Dokuz Eylul Univ, Inst Marine Sci & Technol, TR-35340 Izmir, Turkey
[4] Stn Zool Anton Dohrn, I-80121 Naples, Italy
[5] Istanbul Univ, Inst Marine Sci & Management, TR-34470 Istanbul, Turkey
关键词
Seagrass; Posidonia oceanica; Marmara Sea; Salinity tolerance; Genetic isolation; GLACIAL-HOLOCENE PALEOCEANOGRAPHY; BLACK-SEA; POPULATION-STRUCTURE; GENETIC DIVERSITY; L; DELILE; OUTFLOW; GROWTH; POWER; CONNECTIONS; RESOLUTION;
D O I
10.1016/j.aquabot.2008.04.013
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The seagrass Posidonia oceanica is a stenohaline species endemic to the Mediterranean Sea, where it normally lives at a salinity of between 36.5 and 39.5 ppt. Surveys carried out at the North-eastern distribution limits revealed large beds in the Dardanelles Strait and isolated beds in the Marmara Sea, where the salinity ranges between 21.5 and 28 ppt. Microsatellite analysis of these low-salinity tolerant P. oceanica beds, show different signs of genetic isolation: excess of heterozygosity and a presence of fixed alleles. These particularities are rarely found in the whole distributional range of the species. Moreover, all the populations considered in the analysis have a very low genetic diversity in comparison with most of the meadows sampled throughout the Mediterranean Sea. Taking into consideration the genetic data, rhizome expansion rate and the actual extent of the isolated beds in the Marmara Sea and knowing the reproductive rate and dissemination characteristics of P. oceanica, we hypothesize that the isolated population of the Marmara Sea has been established since the Middle Holocene, before the catastrophic intrusion of brackish water into the Marmara Sea and the strong and persistent flow coming from the Black Sea. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:18 / 22
页数:5
相关论文
共 46 条
  • [1] Oscillating Quaternary water levels of the Marmara Sea and vigorous outflow into the Aegean Sea from the Marmara Sea Black Sea drainage corridor
    Aksu, AE
    Hiscott, RN
    Yasar, D
    [J]. MARINE GEOLOGY, 1999, 153 (1-4) : 275 - 302
  • [2] Last glacial-Holocene paleoceanography of the Black Sea and Marmara Sea: stable isotopic foraminiferal and coccolith evidence
    Aksu, AE
    Hiscott, RN
    Kaminski, MA
    Mudie, PJ
    Gillespie, H
    Abrajano, T
    Yasar, D
    [J]. MARINE GEOLOGY, 2002, 190 (1-2) : 119 - 149
  • [3] Genetic diversity of a clonal angiosperm near its range limit:: the case of Cymodocea nodosa at the Canary Islands
    Alberto, F
    Arnaud-Haond, S
    Duarte, CM
    Serrao, EA
    [J]. MARINE ECOLOGY PROGRESS SERIES, 2006, 309 : 117 - 129
  • [4] New microsatellite markers for the endemic Mediterranean seagrass Posidonia oceanica
    Alberto, F
    Correia, L
    Arnaud-Haond, S
    Billot, C
    Duarte, CM
    Serrao, E
    [J]. MOLECULAR ECOLOGY NOTES, 2003, 3 (02): : 253 - 255
  • [5] Assessing genetic diversity in clonal organisms: Low diversity or low resolution? Combining power and cost efficiency in selecting markers
    Arnaud-Haond, S
    Alberto, F
    Teixeira, S
    Procaccini, G
    Serrao, EA
    Duarte, CM
    [J]. JOURNAL OF HEREDITY, 2005, 96 (04) : 434 - 440
  • [6] Vicariance patterns in the Mediterranean Sea:: east-west cleavage and low dispersal in the endemic seagrass Posidonia oceanica
    Arnaud-Haond, Sophie
    Migliaccio, Marianna
    Diaz-Almela, Elena
    Teixeira, Sara
    van de Vliet, Mirjiam Susanne
    Alberto, Filipe
    Procaccini, Gabriele
    Duarte, Carlos M.
    Serrao, Ester A.
    [J]. JOURNAL OF BIOGEOGRAPHY, 2007, 34 (06) : 963 - 976
  • [7] BELKIR K, 1996, 9060 CNRS UPR U MONT
  • [8] Density currents in the two-layer flow: an example of Dardanelles outflow
    Besiktepe, ST
    [J]. OCEANOLOGICA ACTA, 2003, 26 (03) : 243 - 253
  • [9] Is asexual reproduction more important at geographical limits?: A genetic study of the seagrass Zostera marina in the Ria Formosa, Portugal
    Billingham, MR
    Reusch, TBH
    Alberto, F
    Serrao, EA
    [J]. MARINE ECOLOGY PROGRESS SERIES, 2003, 265 : 77 - 83
  • [10] Boudouresque C.F., 1980, JOURNEES ETUDE SYSTE, P139