The mdx mouse is the most widely used animal model for exon skipping experiments since it is a natural mutant with a stop mutation within exon 23 of the dystrophin gene.
In fact, the partly featherless chicken is a species containing a natural mutation called naked neck which is becoming popular in hot countries, such as Israel, where the animals can be kept cool without a full feather covering.
The nec1 allele in cultivar Parkland was initially described as a natural mutation [ 28], which was confirmed by identification of a MITE insertion in an intron of the NEC1 gene that caused alternative splicing and a predicted non-functional protein [ 9].
Crops that contain such changes, which could theoretically be achieved through conventional breeding, or occur through a natural mutation, are excluded from the proposed labels.
The modification was intended to mirror a natural mutation found in a small percentage of people which makes them resistant to the virus.
Subsequently, the new antigenic type viruses were shown to have a natural mutation of VP2 in common (11 ) (residue 300 Gly to an Asp, Table), which results in remarkable changes of their antigenic properties.
Interestingly, this isolate was antigenically FPLV-type but had a natural mutation of VP2 residue 323 Asp to CPV-specific Asn, supporting previous site-directed mutagenesis studies.
Fortunately, the accumulating evidence suggests that male-harming mtDNA mutations are a natural component of the mutational landscape of animal and plant mitochondrial genomes (Beekman et al. 2014), and initial efforts will therefore focus on whether these can be harnessed to develop this novel form of biocontrol.
Because of the prevalence of the PEX1 mutation in the PBDs, studies of Pex1 mutations were a natural starting point for evaluation of a Drosophila model for the systemic effects of the PBDs and, more specifically, of ZS.
The mutation is a natural occurrence, as is the reaction to the drug.
