Results 21 to 30 of about 316,128 (141)

Selection and drift determine phenotypic stasis despite genetic divergence [PDF]

open access: yes, 2019
1 Abstract Evolutionary theory suggests that phenotypic stasis is explained by natural selection and genetic drift, or by constraints imposed by mutation and recombination of standing genetic variation. We performed experimental evolution from standing genetic variation with the nematode
Mallard, François   +5 more
openaire   +1 more source

Morphological Stasis in Time? A Triatoma brasiliensis brasiliensis Study Using Geometric Morphometrics in the Long Run

open access: yesAnimals, 2022
Triatoma brasiliensis brasiliensis Neiva, 1911 is one of the most important vectors of Chagas disease in the Brazilian semiarid regions in the north-east. The risk imposed by T. b.
Letícia Paschoaletto   +6 more
doaj   +1 more source

Isolation and Characterization of an Atypical Metschnikowia sp. Strain from the Skin Scraping of a Dermatitis Patient. [PDF]

open access: yesPLoS ONE, 2016
A yeast-like organism was isolated from the skin scraping sample of a stasis dermatitis patient in the Mycology Unit Department of Medical Microbiology, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia.
Chee Sian Kuan   +11 more
doaj   +1 more source

Phenotypic flexibility and the evolution of organismal design [PDF]

open access: yes, 2003
Evolutionary biologists often use phenotypic differences between species and between individuals to gain an understanding of organismal design. The focus of much recent attention has been on developmental plasticity – the environmentally induced ...
Piersma, T   +4 more
core   +2 more sources

Evolutionary patterns and processes in the radiation of phyllostomid bats

open access: yesBMC Evolutionary Biology, 2011
Background The phyllostomid bats present the most extensive ecological and phenotypic radiation known among mammal families. This group is an important model system for studies of cranial ecomorphology and functional optimisation because of the ...
Monteiro Leandro R, Nogueira Marcelo R
doaj   +1 more source

Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection

open access: yesEcology and Evolution, 2019
Comparing observed versus theoretically expected evolutionary responses is important for our understanding of the evolutionary process, and for assessing how species may cope with anthropogenic change.
Ronan James O'Sullivan   +9 more
doaj   +1 more source

Ontogenetic convergence and evolution of foot morphology in European cave salamanders (Family: Plethodontidae)

open access: yesBMC Evolutionary Biology, 2010
Background A major goal in evolutionary biology is to understand the evolution of phenotypic diversity. Both natural and sexual selection play a large role in generating phenotypic adaptations, with biomechanical requirements and developmental mechanisms
Nistri Annamaria, Adams Dean C
doaj   +1 more source

Coinfection with Pseudomonas aeruginosa and Aspergillus fumigatus in cystic fibrosis

open access: yesEuropean Respiratory Review, 2020
Objectives Cystic fibrosis (CF) lung disease is characterised by mucus stasis, chronic infection and inflammation, causing progressive structural lung disease and eventual respiratory failure.
Karen Keown   +4 more
doaj   +1 more source

High Duty Cycle Echolocation May Constrain the Evolution of Diversity within Horseshoe Bats (Family: Rhinolophidae)

open access: yesDiversity, 2018
The phenotype of organisms is the net result of various evolutionary forces acting upon their lineages over time. When an innovative trait arises that confers a substantial advantage in terms of survival and reproduction, the evolution of adaptive ...
David S. Jacobs, Anna Bastian
doaj   +1 more source

Maladaptive plasticity facilitates evolution of thermal tolerance during an experimental range shift

open access: yesBMC Evolutionary Biology, 2020
Background Many organisms are responding to climate change with dramatic range shifts, involving plastic and genetic changes to cope with novel climate regimes found at higher latitudes.
Aoife M. Leonard, Lesley T. Lancaster
doaj   +1 more source

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