Marine Biology

, Volume 135, Issue 3, pp 399–405

Molecular population structure of the marine benthic copepod Microarthridion littorale along the southeastern and Gulf coasts of the USA

  • N. V. Schizas
  • G. T. Street
  • B. C. Coull
  • G. T. Chandler
  • J. M. Quattro
Article

DOI: 10.1007/s002270050640

Cite this article as:
Schizas, N., Street, G., Coull, B. et al. Marine Biology (1999) 135: 399. doi:10.1007/s002270050640
  • 131 Views

Abstract

Relationships among populations (southeast Atlantic and northern Gulf coast, USA) of a ubiquitous, estuarine, harpacticoid copepod (Microarthridion littorale Poppe) were estimated using sequence data from two loci: one mitochondrial [cytochrome b (Cyt b)] and one nuclear [first internal transcribed spacer of ribosomal DNA (ITS-1)]. Copepods were collected from seven estuaries in 1997/98. Allelic phylogenies based on both genes were generally concordant, and suggested that M. littorale populations are structured over large geographic scales (hundreds of kilometers). Three well-supported groups were found in both gene trees comprising clades of alleles sampled from South Carolina, Florida, and Louisiana. Alleles from the Savannah, Georgia sample formed a monophyletic group using the Cyt b data, but this clade was not distinguishable with comparable ITS-1 data. A single specimen from Louisiana was classified in different clades depending on the locus assayed.

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • N. V. Schizas
    • 1
  • G. T. Street
    • 2
  • B. C. Coull
    • 1
  • G. T. Chandler
    • 2
  • J. M. Quattro
    • 1
  1. 1.Department of Biological Sciences, University of South Carolina, Columbia, South Carolina 29208, USAUS
  2. 2.Baruch Institute, University of South Carolina, Columbia, South Carolina 29208, USAUS
  3. 3.School of the Environment, University of South Carolina, Columbia, South Carolina 29208, USAUS
  4. 4.Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina 29208, USAUS