This result had been predicted by an earlier study and adds further evidence that there is heritable variation in the mechanisms underlying protection against competing filamentous fungi [ 25].
Facial eczema is a metabolic disease that results from a fungal toxin, sporidesmin, which damages the liver and there is heritable variation in facial eczema resistance in cattle [ 12].
We show that within an isogenic population there are heritable variations in gene expression patterns, providing phenotypic diversity for antibiotic selection to act on.
Individual variations exist in the population These variations are heritable Variations in individuals lead to differential survival and reproduction Cancer is caused by DNA and epigenetic alterations and usually arises as a clonal growth from a single founder cell (Fialkow, 1979).
Evolutionary change by natural selection occurs whenever there is heritable variation among individuals in reproductive capacity: precisely the properties of individual cells within many cancerous tumours in humans.
LIEBERMAN: Natural selection only works when there's heritable variation that affects reproductive success.
For example, Goring et al. [ 29] demonstrated that there was significant heritable variation in expression of a large proportion of transcripts detected using microarrays of peripheral blood.
To the best of our knowledge, there have been no family or twin studies of this anosmia, but differences in olfactory ability are due to heritable variation in olfactory receptors (Keller et al. 2007; Menashe et al. 2007), so this genetic explanation fits the available data (Eriksson et al. 2010).
If clusters possess the necessary ingredients for evolution via natural selection (that is, they possess heritable variation in multicellular traits and succeed or fail because of those traits), then between-cluster selection can result in the evolution of new cluster-level traits.
Previous studies have shown that GE also is polymorphic and heritable variation in humans [ 22, 23].
