Results 51 to 60 of about 4,012 (254)

Competition between recombination and epistasis can cause a transition from allele to genotype selection [PDF]

, 2009
Biochemical and regulatory interactions central to biological networks are expected to cause extensive genetic interactions or epistasis affecting the heritability of complex traits and the distribution of genotypes in populations. However, the inference
Neher, Richard A., Shraiman, Boris I.
core   +3 more sources

Complementarities of two existing intermediate conservation approaches

Plant Diversity, 2017
The need for integration of ex situ and in situ approaches in conservation of plants has long been recognized. However, ex situ collections have numerous limitations that reduce their utility for conservation, necessitating the introduction of new, more ...
Sergei Volis
doaj   +1 more source

Unifying Evolutionary and Network Dynamics

, 2007
Many important real-world networks manifest "small-world" properties such as scale-free degree distributions, small diameters, and clustering. The most common model of growth for these networks is "preferential attachment", where nodes acquire new links ...
Gasser, Les, Swarup, Samarth
core   +1 more source

Adaptive evolution on neutral networks [PDF]

, 2001
We study the evolution of large but finite asexual populations evolving in fitness landscapes in which all mutations are either neutral or strongly deleterious.
Wilke, Claus O.
core   +3 more sources

Colorectal cancer‐derived FGF19 is a metabolically active serum biomarker that exerts enteroendocrine effects on mouse liver

Molecular Oncology, EarlyView.
Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley, Michael W. Rohr, Joseph A. Goode, Sai Preethi Nakkina, Jignesh G. Parikh, Deborah A. Altomare   +5 more
wiley   +1 more source

Anderson Localization, Non-linearity and Stable Genetic Diversity

, 2006
In many models of genotypic evolution, the vector of genotype populations satisfies a system of linear ordinary differential equations. This system of equations models a competition between differential replication rates (fitness) and mutation.
Charles L. Epstein, D. J. Thouless, D. R. Nelson, E. Baake, H. Wagner, J. F. Crow, J. Hermisson, J. McCaskill, L. A. Pastur, M. E. Taylor, M. Eigen, M. Eigen, M. Eigen, M. Eigen, M. Reed, P. B. Rainey, P. W. Anderson, R. Abou-Chacra, R. Carmona, S. S. Chow   +19 more
core   +1 more source

Error Thresholds on Dynamic Fittness-Landscapes [PDF]

, 1999
In this paper we investigate error-thresholds on dynamics fitness-landscapes. We show that there exists both lower and an upper threshold, representing limits to the copying fidelity of simple replicators. The lower bound can be expressed as a correction
B. Levin, C. O. Wilke, D. Alves, E. Baake, E. Domingo, I. Leuthäusser, J. Drake, J. Gillespie, J. Maynard Smith, J. Swetina, K. Ishii, L. Bonhoeffer, L. Van Valen, M. Boerlijst, M. Eigen, M. Eigen, M. Eigen, M. Kimura, M. Nowak, M. Nowak, P. Higgs, P. Schuster, P. Tarazona   +22 more
core   +2 more sources

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

Advanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens, Kaishuai Zhang, Priscila Cavassin, Arwin Goossens, Jochen Vanderspikken, Tania C. H. Castillo, Demetra Tsokkou, Adam Marks, Arianna Magni, Karrie Weaver, Laurence Lutsen, Sahika Inal, Koen Vandewal, Natalie Banerji, Wouter Maes   +14 more
wiley   +1 more source

Redescription of Tripoma arboretum Hirohito, 1995 (Hydrozoa: Campanulinidae) from the Tasman Sea with notes on quasi-parasitism of the species

Scientia Marina, 2000
Tripoma arboreum Hirohito, 1995 has been found in deep water in the Tasman Sea south of Australia, the Norfolk Ridge north of New Zealand and Sagami Bay, Japan. The species exhibits unusual quasi-parasitic behaviour towards its host species.
Jeanette E. Watson, W. Vervoort
doaj   +1 more source

Stochastic delocalization of finite populations

, 2012
Heterogeneities in environmental conditions often induce corresponding heterogeneities in the distribution of species. In the extreme case of a localized patch of increased growth rates, reproducing populations can become strongly concentrated at the ...
Kimura M, Kimura M, Kolmogorov A N, Lukas Geyrhofer, Lynch M, Oskar Hallatschek, Tunnicliffe V, Whitlock M C, Wolff A   +8 more
core   +1 more source