Genetic diversity arises through the interplay of mutation, selection and genetic drift. In most scientific models, mutants have a fitness value which remains constant throughout. Based on this value, they compete with other ...
Evolution
Jun 28, 2012
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Proteins make life and are made by ribosomes. In mitochondria, the repertoire of the mitoribosomal architectures turns out to be much more diverse than previously thought.
Cell & Microbiology
Aug 26, 2020
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6
(PhysOrg.com) -- In a sense, Antonis Rokas is an arborist: He is a member of a small cadre to scientists who are applying the growing power of genomics to untangle and correctly arrange the branches of the Tree of Life.
Evolution
Oct 8, 2009
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Fragmentation of wildlife populations is increasing on a global scale, and understanding current genetic structure, genetic diversity and genetic connectivity is key to informing future wildlife management and conservation.
Ecology
Dec 21, 2018
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A team of researchers from Louisiana State University and the American Museum of Natural History has discovered that two groups of blind cave fishes on opposite sides of the Indian Ocean are each other's closest relatives. ...
Plants & Animals
Aug 29, 2012
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Two opposing evolutionary forces explain the presence of the two different colors of spotted salamander egg masses at ponds in Pennsylvania, according to a new study led by a Penn State biologist. Understanding the processes ...
Evolution
Apr 13, 2021
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Hokkaido University researchers are finding evidence of natural selection that maintains the status quo among ant populations.
Evolution
Dec 20, 2016
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3
Limited gene flow between groups of Australian snubfin and Indo-Pacific humpback dolphins in WA's north may make them more vulnerable to the environmental impacts of coastal industrial developments.
Plants & Animals
Jul 4, 2014
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0
The biota of island archipelagos is of considerable interest to biologists. These isolated areas often act as 'evolutionary laboratories', spawning biological diversity rapidly and permitting many mechanisms to be observed ...
Plants & Animals
Aug 30, 2012
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0
Classical quantitative genetics has found that most phenotypes are polygenic traits. Under this polygenic model, natural selection often acts on many loci simultaneously, resulting in the combination of a few loci with major ...
Ecology
Jul 8, 2020
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