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Allozyme and microsatellite loci provide discordant estimates of population differentiation in the endangered dusky grouper ( Epinephelus marginatus ) within the Mediterranean Sea by S. De Innocentiis; L. Sola; S. Cataudella; P. Bentzen is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
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## Abstract The dusky grouper, __Epinephelus marginatus__, inhabits coastal reefs in the Mediterranean Sea and Atlantic Ocean. A decline in the abundance of this long‐lived protogynous hermaphrodite has led to its listing as an endangered species in the Mediterranean, and heightened management concerns regarding its genetic variability and population substructure. To address these concerns, we analysed genetic variation at seven microsatellite and 28 allozyme loci in dusky groupers sampled from seven areas (for microsatellites) and three areas (for allozymes) in the west‐central Mediterranean. Levels of genetic variability were higher for microsatellites than for allozymes (mean __H__~E~ = 0.78 and 0.07, respectively), but similar to those observed in other marine fishes with comparable markers. Both microsatellites and allozymes revealed significant genetic differentiation among all areas analysed with each class of marker, but the magnitude of differentiation revealed by allozymes over three locales (__F__~ST~ = 0.214) was greater than that detected with microsatellites over seven areas, or over the three areas shared with the allozyme analysis (__F__~ST~ = 0.018 and ~0, respecti
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It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- S. De Innocentiis; L. Sola; S. Cataudella; P. Bentzen
- Publisher
- John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley; Research Square (ISSN 0962-1083)
- Published
- 2001
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)