The major compositional transitions in the vertebrate genome.
J Mol Evol
; 44 Suppl 1: S44-51, 1997.
Article
em En
| MEDLINE
| ID: mdl-9071011
ABSTRACT
The vertebrate genome underwent two major compositional transitions, between therapsids and mammals and between dinosaurs and birds. These transitions concerned a sizable part (roughly one-third) of the genome, the gene-richest part of it, and consisted in an increase in GC levels (GC is the molar fraction of guanine + cytosine in DNA) which affected both coding sequences (especially third codon positions) and noncoding sequences. These major transitions were studied here by comparing GC3 levels (GC3 is the GC of third codon positions) of orthologous genes from Xenopus, chicken, calf, and man.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Composição de Bases
/
Vertebrados
/
Genoma
Limite:
Animals
/
Humans
Idioma:
En
Revista:
J Mol Evol
Ano de publicação:
1997
Tipo de documento:
Article
País de afiliação:
França