Sexual reproduction selects for robustness and negative epistasis in artificial gene networks
Article Abstract:
The relation between negative epistasis, a type of genetic interaction, and sexual reproduction is discussed. Using an artificial gene network model, it is found that recombination between gene network imposes selection for genetic robustness, and that negative epistasis can evolve as a consequence of sexual reproduction itself.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
Epistasis and balanced polymorphism influencing complex trait variation
Article Abstract:
A one-centimorgan chromosome interval in Arabidopsis thyaliana without regard to its effect on growth rate is identified and the signature of historical sequence polymorphism among Arabidopsis accessions is examined. It is found that the interval contained two growth rate quantitative trait loci (QTL) within 210 kilobases.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
User Contributions:
Comment about this article or add new information about this topic:
A cytosolic trans-activation domain essential for ammonium uptake
Article Abstract:
Studies show that cytosolic C terminus (CCT) of ammonium transporter serves as regulator of cellular uptake. Phosphorylation of CCT regulates transportation and rapid transporter shut down to protect against over accumulation of ammonia is provided by allosteric transactivation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Clonal reproduction by males and females in the little fire ant. Complex hybrid origin of genetic caste determination in harvester ants
- Abstracts: Exceeding human limits. Chance and necessity in the evolution of minimal metabolic networks. Functional genomic hypothesis generation and experimentation by a robot scientist
- Abstracts: A simple rule for the evolution of cooperation on graphs and social networks. Spatial structure often inhibits the evolution of cooperation in the snowdrift game
- Abstracts: Spatial representation of shelter locations in meerkats, Suricata suricatta. Frequency of social play does not affect dispersal partnerships in wild meerkats
- Abstracts: Health minister ignites row over drugs for HIV mothers. Ethicists and biologists ponder the price of eggs