Results 71 to 80 of about 7,457,933 (340)

The population genetics of evolutionary rescue. [PDF]

open access: yesPLoS Genetics, 2014
Evolutionary rescue occurs when a population that is threatened with extinction by an environmental change adapts to the change sufficiently rapidly to survive. Here we extend the mathematical theory of evolutionary rescue.
H Allen Orr, Robert L Unckless
doaj   +1 more source

Efficient pedigree recording for fast population genetics simulation

open access: yesbioRxiv, 2018
In this paper we describe how to efficiently record the entire genetic history of a population in forwards-time, individual-based population genetics simulations with arbitrary breeding models, population structure and demography.
Jerome Kelleher   +3 more
semanticscholar   +1 more source

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

Exploring the effects of ecological parameters on the spatial structure of genetic tree sequences

open access: yesPeer Community Journal
Geographic space is a fundamental dimension of evolutionary change, determining how individuals disperse and interact with each other. Consequently, space has an important influence on the structure of genealogies and the distribution of genetic variants
Ianni-Ravn, Mariadaria K.   +2 more
doaj   +1 more source

gPGA: GPU Accelerated Population Genetics Analyses. [PDF]

open access: yesPLoS ONE, 2015
The isolation with migration (IM) model is important for studies in population genetics and phylogeography. IM program applies the IM model to genetic data drawn from a pair of closely related populations or species based on Markov chain Monte Carlo ...
Chunbao Zhou   +3 more
doaj   +1 more source

Population genetic characteristics of Hainan medaka with whole-genome resequencing

open access: yesFrontiers in Genetics, 2022
The DMY gene is deleted in all males of the Sanya population (SY-medaka) of the Hainan medaka, Oryzias curvinotus, as recently reported by us. However, due to limited knowledge regarding their population genetic background, it is difficult to explore the
Zebin Yao   +15 more
doaj   +1 more source

Landscape genetics and gene flow in the banana pathogenic fungus Mycosphaerella fijiensis [PDF]

open access: yes, 2007
Among the different evolutionary forces driving population genetics, gene flow related to dispersal plays a major role in local adaptation processes. However very few studies on plant pathogenic fungi focussed on deciphering gene flow patterns at the ...
Carlier, Jean   +7 more
core  

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

Using neutral cline decay to estimate contemporary dispersal: a generic tool and its application to a major crop pathogen [PDF]

open access: yes, 2013
Dispersal is a key parameter of adaptation, invasion and persistence. Yet standard population genetics inference methods hardly distinguish it from drift and many species cannot be studied by direct mark-recapture methods.
Amil   +46 more
core   +1 more source

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

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