Results 21 to 30 of about 7,493,012 (309)

Bigger Is Fitter? Quantitative Genetic Decomposition of Selection Reveals an Adaptive Evolutionary Decline of Body Mass in a Wild Rodent Population

bioRxiv, 2016
In natural populations, quantitative trait dynamics often do not appear to follow evolutionary predictions: Despite abundant examples of natural selection acting on heritable traits, conclusive evidence for contemporary adaptive evolution remains rare ...
Bonnet Timothée, Wandeler Peter, Camenisch Glauco, P. Erik   +3 more
semanticscholar   +1 more source

Potencial de híbridos simples de milho para extração de linhagens Potential of maize single hybrids to generate inbred lines

Ciência e Agrotecnologia, 2003
A utilização de híbridos simples comerciais de milho é uma das opções de populações para a extração de linhagens, porque são adaptados e provavelmente concentram alta freqüência de alelos favoráveis já fixados.
Odair Bison, Magno Antonio Patto Ramalho, Francislei Vitti Raposo   +2 more
doaj   +1 more source

A Powerful New Quantitative Genetics Platform, Combining Caenorhabditis elegans High-Throughput Fitness Assays with a Large Collection of Recombinant Strains. [PDF]

, 2015
The genetic variants underlying complex traits are often elusive even in powerful model organisms such as Caenorhabditis elegans with controlled genetic backgrounds and environmental conditions.
Andersen, Erik C, Bloom, Joshua S, Crissman, Jonathan R, Gerke, Justin P, Ghosh, Rajarshi, Kruglyak, Leonid, Seidel, Hannah S, Shimko, Tyler C   +7 more
core   +2 more sources

Spontaneous mutations and the origin and maintenance of quantitative genetic variation

eLife, 2016
Mutation and natural selection shape the genetic variation in natural populations. Here, we directly estimated the spontaneous mutation rate by sequencing new Drosophila mutation accumulation lines maintained with minimal natural selection.
Wen Huang, R. F. Lyman, R. A. Lyman, M. A. Carbone, Susan T. Harbison, M. Magwire, T. Mackay   +6 more
semanticscholar   +1 more source

Estimates of genetic parameters for physic nut traits based in the germplasm two years evaluation Estimativa de parâmetros genéticos de caracteres de pinhão-manso em dois anos de avaliação do banco de germoplasma

Ciência Rural, 2012
In spite of increasingly widespread interest in planting physic nut, breeding efforts are still in its infancy. In that context, an important resource recently established aiming future breeding efforts was the assembly of a germplasm bank with near 200 ...
Bruno Galvêas Laviola, Alexandre Alonso Alves, Fábio de Lima Gurgel, Tatiana Barbosa Rosado, Rodrigo Barros Rocha, Julio Cesar Albrecht   +5 more
doaj   +1 more source

Differential expression of cellulose synthase (CesA) gene transcripts in potato as revealed by QRT-PCR [PDF]

, 2009
Two transgenic potato lines, csr2–1 and csr4–8 that contained two different antisense cellulose synthase (CesA) genes, csr2 and csr4, respectively were crossed.
Jacobsen, E., Olawole, O., Vincken, J.P., Visser, R.G.F.   +3 more
core   +2 more sources

Genomic selection on breeding time in a wild bird population

Evolution Letters, 2019
Artificial selection experiments are a powerful tool in evolutionary biology. Selecting individuals based on multimarker genotypes (genomic selection) has several advantages over phenotype‐based selection but has, so far, seen very limited use outside ...
Phillip Gienapp, Mario P. L. Calus, Veronika N. Laine, Marcel E. Visser   +3 more
doaj   +1 more source

The Autism-Related Protein PX-RICS Mediates GABAergic Synaptic Plasticity in Hippocampal Neurons and Emotional Learning in Mice

EBioMedicine, 2018
GABAergic dysfunction underlies many neurodevelopmental and psychiatric disorders. GABAergic synapses exhibit several forms of plasticity at both pre- and postsynaptic levels.
Tsutomu Nakamura, Fumika Sakaue, Yukiko Nasu-Nishimura, Yasuko Takeda, Ken Matsuura, Tetsu Akiyama   +5 more
doaj   +1 more source

Accurate prediction of gene feedback circuit behavior from component properties [PDF]

, 2007
A basic assumption underlying synthetic biology is that analysis of genetic circuit elements, such as regulatory proteins and promoters, can be used to understand and predict the behavior of circuits containing those elements. To test this assumption, we
Alon U, Jonathan W Young, Michael B Elowitz, Nitzan Rosenfeld, Peter S Swain, Ptashne M, Uri Alon   +6 more
core   +3 more sources

Accounting for genetic differences among unknown parents in microevolutionary studies: how to include genetic groups in quantitative genetic animal models

Journal of Animal Ecology, 2016
Summary Quantifying and predicting microevolutionary responses to environmental change requires unbiased estimation of quantitative genetic parameters in wild populations. ‘Animal models’, which utilize pedigree data to separate genetic and environmental
M. Wolak, J. Reid
semanticscholar   +1 more source