Literature DB >> 3557126

Characterization of two types of rRNA gene repeat units from the crustacean Artemia.

M E Gallego, M Díaz-Guerra, J Cruces, J Sebastián, J Renart.   

Abstract

We have previously described that Artemia rRNA genes are organized with a basic repeat unit of 16.5 kb [Cruces et al., Biochem. Biophys. Res. Commun. 98 (1981) 404-409]. Here we describe the organization of the DNA coding for rRNA of a different population of this crustacean that has a repeat unit of 12.2 kb. Both types of repeat units have been cloned and the organization of the external spacers studied by restriction analysis. Both external spacers contain repeated sequences, but they are not homologous to each other. Sequences from the external spacer of the 16.5 kb repeat are also found elsewhere in the genome, within sequences not related to rRNA genes.

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Year:  1986        PMID: 3557126     DOI: 10.1016/0378-1119(86)90363-x

Source DB:  PubMed          Journal:  Gene        ISSN: 0378-1119            Impact factor:   3.688


  4 in total

1.  Actin gene structure in two Artemia species, A. franciscana and A. parthenogenetica.

Authors:  M A Ortega; M Díaz-Guerra; L Sastre
Journal:  J Mol Evol       Date:  1996-09       Impact factor: 2.395

2.  The 5S rRNA-histone repeat in the crustacean Artemia: structure, polymorphism and variation of the 5S rRNA segment in different populations.

Authors:  J Cruces; M Díaz-Guerra; I Gil; J Renart
Journal:  Nucleic Acids Res       Date:  1989-08-11       Impact factor: 16.971

3.  In vivo transcription from multiple spacer rRNA gene promoters during early development and evolution of the intergenic spacer in the brine shrimp Artemia.

Authors:  H T Koller; K A Frondorf; P D Maschner; J C Vaughn
Journal:  Nucleic Acids Res       Date:  1987-07-10       Impact factor: 16.971

4.  Identification of the transcriptional initiation site of ribosomal RNA genes in the crustacean Artemia.

Authors:  I Gil; M E Gallego; J Renart; J Cruces
Journal:  Nucleic Acids Res       Date:  1987-08-11       Impact factor: 16.971

  4 in total

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