title: Genetic diversity and phylogenetic analysis of two Tunisian bivalves (Mactridae) Mactra corallina (Linnaeus, 1758) and Eastonia rugosa (Helbling, 1799) based on COI gene sequences.
abstract: A partial sequence of mitochondrial cytochrome c oxidase subunit I (COI) was used as a genetic marker for a genetic diversity and phylogenetic analysis (DNA barcoding) of two Mactridae species, Mactra corallina and Eastonia rugosa, collected from the Tunisian coast. These Mactridae species could be distinguished by DNA barcoding techniques and they will be considered as monophyletic clades with the Neighbor-Joining (NJ) tree. The genetic structure detected that E. rugosa presents three haplotypes with a high frequency of HER1 (0.89). However, M. corralina shared 14 haplotypes. The haplotypic diversity (H) was equal to 0.205 and 0.954, respectively, for E. rugosa and M. corallina. While the nucleotide diversity (π) was higher for M. corallina (π=0.0818), the mismatch distribution showed a unimodal curve for E. rugosa (a recent sudden demographic expansion) and a multimodal distribution for M. corallina (size stability).
authors.affiliation: Unité de physiologie et d'écophysiologie des organismes aquatiques, département de sciences biologiques, faculté de sciences de Tunis, campus universitaire, 2092, Manar II, Tunis, Tunisie. Electronic address: chetouiimene@gmail.com.
authors.forename: Imene
authors.initials: I
authors.lastname: Chetoui
authors.affiliation: Station de biologie marine, Muséum national d'histoire naturelle, place de la Croix, 29900 Concarneau, France; Laboratoire Mer, Molécules, Santé, Université du Maine, EA 2160, avenue O.-Messiaen, 72085 Le Mans cedex 9, France.
authors.forename: Françoise
authors.initials: F
authors.lastname: Denis
authors.affiliation: Laboratoire de biotechnologie végétale, Institut national des sciences appliquées de technologie, centre urbain Nord, BP 676, 1080 Tunis cedex, Tunisie.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Boussaid
authors.affiliation: Unité de physiologie et d'écophysiologie des organismes aquatiques, département de sciences biologiques, faculté de sciences de Tunis, campus universitaire, 2092, Manar II, Tunis, Tunisie.
authors.forename: Khoula
authors.initials: K
authors.lastname: Telahigue
authors.affiliation: Unité de physiologie et d'écophysiologie des organismes aquatiques, département de sciences biologiques, faculté de sciences de Tunis, campus universitaire, 2092, Manar II, Tunis, Tunisie.
authors.forename: M'Hamed
authors.initials: M
authors.lastname: El Cafsi
mesh_terms: D000818:Animals; D049872:Bivalvia / Q000235:genetics*; D058893:DNA Barcoding, Taxonomic; D004272:DNA, Mitochondrial / Q000235:genetics*; D003576:Electron Transport Complex IV / Q000235:genetics*; D014644:Genetic Variation; D006239:Haplotypes; D008928:Mitochondria / Q000235:genetics; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D013045:Species Specificity; D014416:Tunisia
chemical_list: D004272:DNA, Mitochondrial; D003576:Electron Transport Complex IV
keywords: Analyse phylogénétique; COI gene; Diversité génétique; Eastonia rugosa; Genetic diversity; Gène COI; Mactra corallina; Phylogenetic analysis