title: Complete mitochondrial DNA sequences of Saccostrea mordax and Saccostrea cucullata: genome organization and phylogeny analysis.
abstract: Classified in the phylum mollusks, oysters are bivalves which are found in estuaries and coastal zones. Because of their plastic shell, mitochondrial DNA analysis of this species becomes an interesting field, necessary to investigate their phylogenetic and evolution of relations. In our study, two oyster species: Saccostrea mordax and Saccostrea cucullata from Indian Ocean (Madagascar) were investigated. The complete sequence of Saccostrea mordax (16 512 bp) and Saccostrea cucullata (16 396 bp) were described and determined, with their mitogenomes deposited in the GenBank with accession number KP769562 and KP967577 respectively. Both mitochondrial genome sequences contained 12 protein-coding genes, 23 tRNAs, and two rRNAs, all encoded in the same heavy strand. High levels of similarity in the gene arrangement of the two Saccostrea species were evident. The phylogenetic analysis shows a closer relationship between the two Saccostrea species and confirms the strong relationship within Saccostrea, Crassostrea and Ostrea genus in taxonomy of Ostreidae family.
authors.affiliation: a Department of Molecular Biology , Ningbo University , Ningbo , China and.
authors.forename: Josie Ancella
authors.initials: JA
authors.lastname: Volatiana
authors.affiliation: a Department of Molecular Biology , Ningbo University , Ningbo , China and.
authors.forename: Shasha
authors.initials: S
authors.lastname: Fang
authors.affiliation: a Department of Molecular Biology , Ningbo University , Ningbo , China and.|b Kisii County Government, Directorate of Fisheries , Kisii , Kenya.
authors.forename: Zachary Omambia
authors.initials: ZO
authors.lastname: Kinaro
authors.affiliation: a Department of Molecular Biology , Ningbo University , Ningbo , China and.
authors.forename: Xiao
authors.initials: X
authors.lastname: Liu
mesh_terms: D000818:Animals; D049872:Bivalvia / Q000145:classification* / Q000235:genetics*; D004272:DNA, Mitochondrial; D019143:Evolution, Molecular; D050259:Genes, Mitochondrial; D054629:Genome, Mitochondrial; D023281:Genomics / Q000379:methods; D010802:Phylogeny; D011110:Polymorphism, Genetic; D017422:Sequence Analysis, DNA
chemical_list: D004272:DNA, Mitochondrial
keywords: Evolution; Saccostrea cucullata; Saccostrea mordax; mitochondrial DNA; phylogeny