Allozymic variation in Mediterranean hake, Merluccius merluccius (Gadidae)

Sabrina Lo Brutto, Matteo Cammarata, Marco Arculeo, Nicolo' Parrinello, Matteo Cammarata, Annamaria Mauro, Sabrina Lo Brutto, Michele Scalisi, Marco Arculeo, Nicolò Parrinello, Annamaria Mauro

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Abstract

Four hundred and twenty individual hake from 10 sample sites in the Mediterranean Sea were analysed in order to study genetic variability and identify genetic stock structure. Twenty loci were identified, four of which were polymorphic at the 95% level: ADH*, PGI‐1*, PGI‐2* and SOD‐1*. Average observed and expected heterozygosity were 0.084 and 0.090, respectively. PG1–1* deviated from Hardy‐Weinberg expectations due to an excess of heterozygotes and F‐statistic analysis showed also a significant excess of heterozygosity at SOD‐1*. FST was not significant for each locus except for PGI‐2*, where a single sample from the Channel of Sicily (C5) showed a different pattern in allelic frequencies, probably caused by a stochastic event. The samples analyzed seemed to be homogeneous, but future analyses may be necessary using other complementary molecular markers.
Original languageEnglish
Pages (from-to)49-52
Number of pages4
JournalTHE ITALIAN JOURNAL OF ZOOLOGY
Volume65
Publication statusPublished - 1998

All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology

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