Results 31 to 40 of about 3,953,318 (310)

The evolution of non-reproductive workers in insect colonies with haplodiploid genetics

eLife, 2015
Eusociality is a distinct form of biological organization. A key characteristic of advanced eusociality is the presence of non-reproductive workers. Why evolution should produce organisms that sacrifice their own reproductive potential in order to aid ...
Jason W Olejarz, Benjamin Allen, Carl Veller, Martin A Nowak   +3 more
doaj   +1 more source

Evolutionary Aspects of Enzyme Dynamics [PDF]

Journal of Biological Chemistry, 2014
The role of evolutionary pressure on the chemical step catalyzed by enzymes is somewhat enigmatic, in part because chemistry is not rate-limiting for many optimized systems. Herein, we present studies that examine various aspects of the evolutionary relationship between protein dynamics and the chemical step in two paradigmatic enzyme families ...
Klinman, Judith P, Kohen, Amnon
openaire   +4 more sources

Agent-Based Evolutionary Game Dynamics [PDF]

Producción CientíficaThis book is a guide to implement and analyze simple agent-based evolutionary models using NetLogo. All the models we implement in this book are agent-based, i.e.
Izquierdo Millán, Luis R., Izquierdo Millán, Segismundo Samuel, Izquierdo Millán, Luis Rodrigo, Izquierdo, Segismundo S., Sandholm, William H.   +4 more
core   +1 more source

Diversity in evolutionary dynamics

Journal of the Royal Society Interface
Abstract We consider the dynamics imposed by natural selection on the populations of two competing, sexually reproducing, haploid species. In this setting, the fitness of any genotype varies over time due to the changing population mix of the competing species; crucially, unlike other approaches to ensuring time-varying fitnesses, in ...
Yuval Rabani, Leonard J. Schulman, Alistair Sinclair   +2 more
openaire   +2 more sources

Why Do Herbivorous Mites Suppress Plant Defenses?

Frontiers in Plant Science, 2018
Plants have evolved numerous defensive traits that enable them to resist herbivores. In turn, this resistance has selected for herbivores that can cope with defenses by either avoiding, resisting or suppressing them. Several species of herbivorous mites,
C. Joséphine H. Blaazer, Ernesto A. Villacis-Perez, Rachid Chafi, Thomas Van Leeuwen, Thomas Van Leeuwen, Merijn R. Kant, Bernardus C. J. Schimmel   +6 more
doaj   +1 more source

Evolutionary Dynamics of Extremal Optimization [PDF]

Journal of Computational Interdisciplinary Sciences, 2009
Dynamic features of the recently introduced extremal optimization heuristic are analyzed. Numerical studies of this evolutionary search heuristic show that it performs optimally at a transition between a jammed and an diffusive state. Using a simple, annealed model, some of the key features of extremal optimization are explained.
openaire   +3 more sources

Polymorphism in the symmetries of gastric pouch arrangements in the sea anemone D. lineata

Zoological Letters, 2021
Symmetry in the arrangement of body parts is a distinctive phylogenetic feature of animals. Cnidarians show both bilateral and radial symmetries in their internal organs, such as gastric pouches and muscles.
Safiye E. Sarper, Tamami Hirai, Take Matsuyama, Shigeru Kuratani, Koichi Fujimoto   +4 more
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

The evolutionary dynamics of hyperparasites

Journal of Theoretical Biology
Evolutionary theory has typically focused on pairwise interactions, such as those between hosts and parasites, with relatively little work having been carried out on more complex interactions including hyperparasites: parasites of parasites. Hyperparasites are common in nature, with the chestnut blight fungus virus CHV-1 a well-known natural example ...
Graham R. Northrup, Andy White, Steven R. Parratt, Carly Rozins, Anna-Liisa Laine, Mike Boots   +5 more
openaire   +4 more sources

Tetranychus evansi spider mite populations suppress tomato defenses to varying degrees

Ecology and Evolution, 2020
Plant defense suppression is an offensive strategy of herbivores, in which they manipulate plant physiological processes to increase their performance. Paradoxically, defense suppression does not always benefit the defense‐suppressing herbivores, because
Bram Knegt, Tomas T. Meijer, Merijn R. Kant, E. Toby Kiers, Martijn Egas   +4 more
doaj   +1 more source