Resource data
Divergence and Shannon information in genomes
Chen, Hong-Da Chang, Chang-Heng Hsieh, Li-Ching Lee, Hoong-Chien
Location:
http://arxiv.org/abs/q-bio/0412037
Shannon information (SI) and its special case, divergence, are defined for a
DNA sequence in terms of probabilities of chemical words in the sequence and
are computed for a set of complete genomes highly diverse in length and
composition. We find the following: SI (but not divergence) is inversely
proportional to sequence length for a random sequence but is length-independent
for genomes; the genomic SI is always greater and, for shorter words and longer
sequences, hundreds to thousands times greater than the SI in a random sequence
whose length and composition match those of the genome; genomic SIs appear to
have word-length dependent universal values. The universality is inferred to be
an evolution footprint of a universal mode for genome growth.
Belongs to: arXiv
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Detalles del recurso
|
Divergence and Shannon information in genomes
|
| Id. |
20880381 |
| Titulo |
Divergence and Shannon information in genomes |
| Autor(es) |
Chen, Hong-Da Chang, Chang-Heng Hsieh, Li-Ching Lee, Hoong-Chien |
| Location |
http://arxiv.org/abs/q-bio/0412037
|
| Versión |
1.0 |
| Estado |
Final
|
| Descripción |
Shannon information (SI) and its special case, divergence, are defined for a
DNA sequence in terms of probabilities of chemical words in the sequence and
are computed for a set of complete genomes highly diverse in length and
composition. We find the following: SI (but not divergence) is inversely
proportional to sequence length for a random sequence but is length-independent
for genomes; the genomic SI is always greater and, for shorter words and longer
sequences, hundreds to thousands times greater than the SI in a random sequence
whose length and composition match those of the genome; genomic SIs appear to
have word-length dependent universal values. The universality is inferred to be
an evolution footprint of a universal mode for genome growth. |
| Palabras clave |
Quantitative Biology - Genomics |
| Tipo de recurso |
Texto Narrativo
|
| Tipo de Interactividad |
Expositivo
|
| Nivel de Interactividad |
muy bajo
|
| Audiencia |
Estudiante
Profesor
Autor
|
| Estructura |
Atomic |
| Coste |
no
|
| Copyright |
sí
|
| Requerimientos técnicos |
Browser: Any |
| Fecha de contribución |
28-mar-2007 |
| Contacto |
|
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