Martínez-Lage, AndrésRodríguez Fariña, María FernandaGonzález-Tizón, Ana M.Méndez, Josefina2019-02-072019-02-072005-04Origin and evolution of Mytilus mussel satellite DNAs. A. Martínez-Lage, F. Rodríguez-Fariña, A. González-Tizón, and J. Méndez, Genome, 48(2), 2005, 247-256.0831-2796http://hdl.handle.net/2183/21692[Abstract] A phylogenetic reconstruction based on the amplification of 3 satellite DNAs (stDNAs) was carried out in 1 crustacean species and 15 bivalve species of the subclass Pteriomorphia (10, subfamily Mytilinae; 1, subfamily Litophaginae; 1, subfamily Modiolinae, all belonging to family Mytilidae; 1, family Arcidae; and 2, family Pectinidae). The sequences obtained showed motifs with high similarity to those of A and B boxes of tRNA promoter regions. Dot-blot hybridizations revealed that the 3 stDNAs are present mainly in high copy numbers for each species of the genus Mytilus, whereas for the other species they appear in low copy numbers. Maximum-parsimony trees evidenced a tendency to group Mytilus clones together, and species containing these sequences as a single copy were distributed among the different mytilids. Finally, the possible origin and evolution of these stDNAs is discussed.engBivalvesPteriomorphiaSatellite DNAPhylogenyDot-blotjournal articleopen access