High level of genetic differentiation in the marine isopod Sphaeroma terebrans (Crustacea Isopoda Sphaeromatidae) as inferred by mitochondrial DNA analysis (Articolo in rivista)

Type
Label
  • High level of genetic differentiation in the marine isopod Sphaeroma terebrans (Crustacea Isopoda Sphaeromatidae) as inferred by mitochondrial DNA analysis (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jembe.2004.09.020 (literal)
Alternative label
  • Mariella Baratti; Emanuele Goti; Giuseppe Messana (2005)
    High level of genetic differentiation in the marine isopod Sphaeroma terebrans (Crustacea Isopoda Sphaeromatidae) as inferred by mitochondrial DNA analysis
    in Journal of experimental marine biology and ecology
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Mariella Baratti; Emanuele Goti; Giuseppe Messana (literal)
Pagina inizio
  • 225 (literal)
Pagina fine
  • 234 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 315 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto per lo Studio degli Ecosistemi (ISE)-CNR, Via Madonna del Piano 50019, Sesto Fiorentino Florence, Italy (literal)
Titolo
  • High level of genetic differentiation in the marine isopod Sphaeroma terebrans (Crustacea Isopoda Sphaeromatidae) as inferred by mitochondrial DNA analysis (literal)
Abstract
  • Sphaeroma terebrans Bate 1866 is a marine isopod belonging to the large family Sphaeromatidae, which normally colonises the aerial roots of the mangrove genus Rhizophora in tropical and subtropical areas. S. terebrans is part of a group of species whose complete life cycle occurs within the same mangrove wood. In this paper, we provide clear evidence of significant genetic differentiation among geographic populations of the taxon S. terebrans. The consistently low internal variation and the large interpopulation distances indicate that almost all the mitochondrial variation (cytochrome oxidase I) in S. terebrans is apportioned among populations rather than within them. The mean haplotype diversity (h) is 0.71%, and the mean nucleotide diversity (p) is 0.34%. The Minimum Spanning Tree (MST) reveals a complex pattern: three principal haplotype groups corresponding to the geographic locations investigated are distributed in a network. This suggests an ancient evolutionary history and very restricted gene flow between populations. The large genetic distances between the populations of S. terebrans could suggest that this taxon is not a single species but a species complex whose taxonomic status must be revaluated. (literal)
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