A repetitive HindIII fragment of DNA from Raja montagui (Rajiformes) was cloned and sequenced for the first time in cartilaginous fishes. This element which comprises approximately 5% of the whole genome of the spotted ray, is absent in long tandem arrays, being typical of satellite DNA. It appeared constituted by 311 AT-rich bp (61%). The clone was hybridized to the genomic DNA of species with varying phyletic distances, revealing a high degree of conservation.
Cloning and characterization of a repetitive DNA detected by HindIII in the genome of Raja montagui (Batoidea, Chondrichthyes)
ROCCO, Lucia;STINGO, Vincenzo;
1996
Abstract
A repetitive HindIII fragment of DNA from Raja montagui (Rajiformes) was cloned and sequenced for the first time in cartilaginous fishes. This element which comprises approximately 5% of the whole genome of the spotted ray, is absent in long tandem arrays, being typical of satellite DNA. It appeared constituted by 311 AT-rich bp (61%). The clone was hybridized to the genomic DNA of species with varying phyletic distances, revealing a high degree of conservation.File in questo prodotto:
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