0000000001242078

AUTHOR

Patrick Berrebi

Absence of spatial genetic structure in common dentex (Dentex dentex Linnaeus, 1758) in the Mediterranean Sea as evidenced by nuclear and mitochondrial molecular markers.

International audience; The common dentex, Dentex dentex, is a fish species which inhabits marine environments in the Mediterranean and Northeast Atlantic regions. This is an important species from an ecological, economic and conservation perspective, however critical information on its population genetic structure is lacking. Most samples were obtained from the Mediterranean Sea (17 sites) with an emphasis around Corsica (5 sites), plus one Atlantic Ocean site. This provided an opportunity to examine genetic structuring at local and broader scales to provide science based data for the management of fishing stocks in the region. Two mitochondrial regions were examined (D-loop and COI) along…

research product

Brown trout (Salmo trutta L.) high genetic diversity around the Tyrrhenian Sea as revealed by nuclear and mitochondrial markers

The brown trout (Salmo trutta L.) is widely distributed all around Europe but its natural diversity is threatened by massive stocking with Atlantic domestic strains. Describing the remaining natural genetic diversity and the proportion of domestic hatchery strains in rivers is a prerequisite for smart conservation. The high genetic diversity of brown trout populations around the Tyrrhenian Sea is well known. Use of twelve microsatellites has allowed description of the natural genetic structure of populations and detection of the consequences of stocking. Mitochondrial DNA control region sequences and the LDH-C1* gene enabled placement of each population into one of the six mitochondrial and…

research product

Specific Identification of the Extinct Population of Sturgeons from the Rhône river by Sequencing of mtDNA from Bone Remains (Jardin d'Hiver, Arles, France, 6th to 2nd century BC.)

XIV th ICAZ Remains Working Group Meeting; Sturgeon lived in the Rhöne river (France) until its complete extinction in the mid 1970's. Usually attributed to Acipenser sturio, it disappeared without certitude about species identity and about possible sympatry between Acipenser sturio and Acipenser naccarii as it occured in the Pô (Italy) and Guadalquivir (Spain) rivers. Genetic analyses on several sturgeon bone remains from the Arles' Jardin d'Hiver collection have been carried out to solve this question. These remains belong to sturgeons caught in the Rhône river. The mitochondrial DNA (cytochrome b) sequences clearly show that A. sturio lived in this river. Morphological comparisons betwee…

research product