scholarly journals Nucleotide sequence encoding the 5′ end of Xenopus laevis 18S rRNA

1980 ◽  
Vol 8 (13) ◽  
pp. 2871-2884 ◽  
Author(s):  
M. Salim ◽  
B.E.H. Maden
Keyword(s):  
Nucleotide Sequence ◽  
Xenopus Laevis ◽  
18S Rrna ◽  
Sequence Encoding

The 18S rRNA from Odontophrynus americanus 2n and 4n (Amphibia, Anura) reveals unusual extra sequences in the variable region V2

Genome ◽  
2004 ◽  
Vol 47 (3) ◽  
pp. 421-428 ◽  
Author(s):  
Lúcia E Alvares ◽  
Jan Wuyts ◽  
Yves Van de Peer ◽  
Eduardo P Silva ◽  
Luiz L Coutinho ◽  
...  
Keyword(s):  
Molecular Evolution ◽  
Secondary Structure ◽  
Nucleotide Sequence ◽  
Xenopus Laevis ◽  
Ribosomal Dna ◽  
18S Rrna ◽  
Variable Region ◽  
Tetraploid Species ◽  
Nucleotide Substitutions ◽  
Variable Regions

The nucleotide sequence of the rDNA 18S region isolated from diploid and tetraploid species of the amphibian Odontophrynus americanus was determined and used to predict the secondary structure of the corresponding 18S rRNA molecules. Comparison of the primary and secondary structures for the 2n and 4n species confirmed that these species are very closely related. Only three nucleotide substitutions were observed, accounting for 99% identity between the 18S sequences, whereas several changes were detected by comparison with the Xenopus laevis 18S sequence (96% identity). Most changes were located in highly variable regions of the molecule. A noticeable feature of the Odontophrynus 18S rRNA was the presence of unusual extra sequences in the V2 region, between helices 9 and 11. These extra sequences do not fit the model for secondary structure predicted for vertebrate 18S rRNA.Key words: Odontophrynus americanus, Amphibia, polyploidy, 18S ribosomal DNA, molecular evolution.

Genetic Identification of Algas on The Basis of The Analysis of 18s rRNA and rbcl of Genes Nucleotide Sequence and Development of Technology of Aquaculture Cultivation

2014 ◽  
Vol 2 (42) ◽  
pp. 291-291
Author(s):  
Z.B. Tekebayeva ◽  
A.B. Shevtsov ◽  
X.K. Rakhymzhan ◽  
K.A. Aituganov ◽  
G.A. Babayeva ◽  
...  
Keyword(s):  
Nucleotide Sequence ◽  
18S Rrna ◽  
Genetic Identification

scholarly journals The nucleotide sequence of the mRNA encoding a tadpole beta-globin polypeptide of Xenopus laevis.

1983 ◽  
Vol 258 (13) ◽  
pp. 7924-7927
Author(s):  
D Banville ◽  
R M Kay ◽  
R Harris ◽  
J G Williams
Keyword(s):  
Nucleotide Sequence ◽  
Xenopus Laevis ◽  
Beta Globin

The nucleotide sequence encoding bovine opsin

1984 ◽  
Vol 24 (11) ◽  
pp. 1695 ◽  
Author(s):  
W. Baehr ◽  
M.L. Applebury
Keyword(s):  
Nucleotide Sequence ◽  
Sequence Encoding
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