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Provedor de dados:  Genet. Mol. Biol.
País:  Brazil
Título:  Site heteroplasmy in the mitochondrial cytochrome b gene of the sterlet sturgeon Acipenser ruthenus
Autores:  Dudu,Andreea
Georgescu,Sergiu Emil
Berrebi,Patrick
Costache,Marieta
Data:  2012-01-01
Ano:  2012
Palavras-chave:  Sterlet sturgeon
MtDNA
Site heteroplasmy
Resumo:  Sturgeons are fish species with a complex biology. They are also characterized by complex aspects including polyploidization and easiness of hybridization. As with most of the Ponto-Caspian sturgeons, the populations of Acipenser ruthenus from the Danube have declined drastically during the last decades. This is the first report on mitochondrial point heteroplasmy in the cytochrome b gene of this species. The 1141 bp sequence of the cytb gene in wild sterlet sturgeon individuals from the Lower Danube was determined, and site heteroplasmy evidenced in three of the 30 specimens collected. Two nucleotide sequences were identified in these heteroplasmic individuals. The majority of the heteroplasmic sites are synonymous and do not modify the sequence of amino acids in cytochrome B protein. To date, several cases of point heteroplasmy have been reported in animals, mostly due to paternal leakage of mtDNA. The presence of specific point heteroplasmic sites might be interesting for a possible correlation with genetically distinct groups in the Danube River.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000500024
Editor:  Sociedade Brasileira de Genética
Relação:  10.1590/S1415-47572012005000058
Formato:  text/html
Fonte:  Genetics and Molecular Biology v.35 n.4 2012
Direitos:  info:eu-repo/semantics/openAccess
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