Origin and evolution of "Mytilus" mussel satellite DNAs

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- Investigación (FCIE) [1160]
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Origin and evolution of "Mytilus" mussel satellite DNAsAuthor(s)
Date
2005-04Citation
Origin 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.
Abstract
[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.
Keywords
Bivalves
Pteriomorphia
Satellite DNA
Phylogeny
Dot-blot
Pteriomorphia
Satellite DNA
Phylogeny
Dot-blot
Editor version
ISSN
0831-2796