Results 231 to 240 of about 2,895,342 (271)

Clinical immunogenicity assessment of HIV/AIDS vaccines: current progress and future perspectives. [PDF]

Emerg Microbes Infect
Yu H, Wu X, Li T, Nie J.
europepmc   +1 more source

Mosaic Evolution of Brain Structure in Mammals

Nature, 2000
The mammalian brain comprises a number of functionally distinct systems. It might therefore be expected that natural selection on particular behavioural capacities would have caused size changes selectively, in the systems mediating those capacities. It has been claimed, however, that developmental constraints limited such mosaic evolution, causing co ...
Robert A. Barton, Paul H. Harvey
exaly   +4 more sources

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The Complex Mosaic of H. Pylori Evolution

Nature Reviews Microbiology, 2020
A large genome dataset investigates the evolutionary history of Helicobacter pylori and its links to human migration.
Ursula Hofer
exaly   +3 more sources

Mosaic Evolution, Mosaic Selection and Angiosperm Phylogeny

Botanical Journal of the Linnean Society, 1984
STEBBINS, G. L., 1984. Mosaic evolution, mosaic selection and angiosperm phylogeny. Mosaic evolution is a general pattern of evolutionary change, and is expected on the hypothesis that rvolution is basically opportunistic rather than determinate. It is most often exemplified by constancy with respect to one set of characters over a given period of time,
G Ledyard Stebbins
exaly   +2 more sources

Mosaic evolution in the Drosophila genome

BioEssays, 1988
AbstractInvestigation of the evolution of the DNA sequences that comprise a small gene cluster in five closely related species of Drosophila shows that it evolves as a mosaic, with adjacent subregions displaying very different rates and types of evolution. It appears that local differences in the influence of selectional and mutational forces result in
Martin, Christopher H., Meyerowitz, Elliot M.   +1 more
openaire   +3 more sources

Mosaic Evolution: An Integrating Principle for the Modern Synthesis

Experientia, 1983
G L Stebbins
exaly   +3 more sources

Mosaic evolution of rodent B1 elements

Journal of Molecular Evolution, 1996
We have determined sequences of PCR-amplified B1 elements from hamster and rat (Myomorpha), chipmunk (Sciuromorpha), and guinea pig (Caviomorpha). Between three and six B1 subfamilies were found in these species. In the phylogenetic analysis B1 sequences of hamster, mouse, and rat clustered separately from those of chipmunk and those of guinea pig ...
E, Zietkiewicz, D, Labuda
openaire   +2 more sources

Mosaic Evolution in the Origin of the Hominoidea

Folia Primatologica, 1999
The initial appearance of hominoids, or apes, and the selective pressures that led to their emergence are currently disputed. Central to the argument are the proconsulids, variously described as the earliest apes or as stem catarrhines, based on facial and postcranial data, respectively.
openaire   +2 more sources

Mosaic Evolution of Ruminant Stomach Lysozyme Genes

Molecular Phylogenetics and Evolution, 1999
The genomes of ruminant artiodactyls, such as cow and sheep, have approximately 10 lysozyme genes, 4 of which are expressed in the stomach. Most of the duplications of the lysozyme genes occurred 40-50 million years ago, before the divergence of cow and sheep. Despite this, the coding regions of stomach lysozyme genes within a species (e.g., cow, sheep,
Y, Wen, D M, Irwin
openaire   +2 more sources