Moreover, the fact that these heritable markers do not parse T. cruzi strains along the same lines as traditional typing methods is strongly suggestive of genetic exchange playing a major role in T. cruzi population structure and biology.
DNA methylation is a heritable epigenetic marker that regulates gene expression without altering DNA sequence (Egger et al. 2004).
We therefore transformed the olive fly with construct OX3097, an fsRIDL system that had previously provided suitable fsRIDL strains for Medfly, incorporating genetic sexing, genetic sterilisation, and a heritable fluorescent marker [ 15].
A more recent focus in genetic research of PD has been to discover heritable trait markers of disorder vulnerability.
Polymorphic SSRs were used to genotype the first DNA panel of 66 individuals, and then those having stable, heritable, and reproducible markers were genotyped on the second panel of other 66 individuals.
Nonword repetition is a good marker for heritable SLI (46).
Subsequently, Tager-Flusberg and Joseph (2003) noted that many children with ASD were particularly poor at repeating nonsense words, a measure that has been proposed as a marker of heritable SLI (Bishop et al. 1996).
This test involves the repetition of nonsensical words of increasing length and complexity and the results from it have been shown to be highly heritable and a consistent marker of the presence of language impairment.
When Six2-GFPCre mice are crossed with a floxed STOP reporter strain, Cre-dependent removal of the stop sequence in progeny leads to constitutive and heritable expression of a marker gene such that all mesenchyme-derived renal epithelial cells, from the Bowman's capsule to the junction of the connecting segment and collecting duct, are heritably labelled [ 18].
Finally, non-word repetition is thought to be a particularly good marker of a heritable phenotype because it is highly heritable and is also sensitive to residual problems in children with a past history of SLI (Bishop et al. 1996).
