Molecular Characterization of a Variable Tandem Repeat Sequence Determined during RAPD Analysis among Posidonia oceanica Insular and Coastline Populations

Molecular Characterization of a Variable Tandem Repeat Sequence Determined during RAPD Analysis... The seagrass Posidonia oceanica plays a multifunctional role in the coastal area as an important and productive component of ecosystems in the Mediterranean Sea. We detected by RAPD analysis with two arbitrary primers genetic differences in P. oceanica collected from several sites in the Southern Mediterranean. By AMOVA analysis we observed a level of about 20% genetic difference among individuals within a population and 80% among populations. A common band of 200 bp was found in all the amplified samples. Cloning and sequencing analysis of this band revealed the presence of a simple tandem repeat sequence (minisatellite) that we called PoTR (Posidonia oceanica tandem repeat). Finally, the ability of PoTR to detect genetic variability inP. oceanica genome was demonstrated by the presence of amplification products of different lengths utilizing primers internal to this sequence. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Molecular Characterization of a Variable Tandem Repeat Sequence Determined during RAPD Analysis among Posidonia oceanica Insular and Coastline Populations

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2002 by MAIK "Nauka/Interperiodica"
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1023/A:1016048102738
Publisher site
See Article on Publisher Site

Abstract

The seagrass Posidonia oceanica plays a multifunctional role in the coastal area as an important and productive component of ecosystems in the Mediterranean Sea. We detected by RAPD analysis with two arbitrary primers genetic differences in P. oceanica collected from several sites in the Southern Mediterranean. By AMOVA analysis we observed a level of about 20% genetic difference among individuals within a population and 80% among populations. A common band of 200 bp was found in all the amplified samples. Cloning and sequencing analysis of this band revealed the presence of a simple tandem repeat sequence (minisatellite) that we called PoTR (Posidonia oceanica tandem repeat). Finally, the ability of PoTR to detect genetic variability inP. oceanica genome was demonstrated by the presence of amplification products of different lengths utilizing primers internal to this sequence.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Oct 13, 2004

References

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