High levels of genetic variation and underlying population structure in Africans present significant challenges, but lower levels of linkage disequilibrium provide an opportunity for more effective localisation of causal variants.
Redevelopment, which retained a compact structure based upon spatial proximity, was found to encourage high levels of linkage between the component parts of the centre and generated favourable attitudes to the shopping environment.
At the level of network metrics, we firstly aim to identify those sub-networks (communities or clusters or fractions) of nodes showing higher levels of linkage density with the frailty levels identified by GPs.
The SNPs within each gene had low levels of linkage disequilibrium and were thus not fully independent tests.
Furthermore, haplotype analysis revealed low levels of linkage disequilibrium within the region, with two blocks being associated with prostate cancer risk among our population.
However, the high levels of linkage disequilibrium generated by selfing may also facilitate the fixation of compensatory alleles that modify the effects of the initial mutation [25], [29].
The combination of high levels of Linkage Disequilibrium (LD), heterozygote deficits at large number of loci, and high genetic diversity in some of the populations (Fig. 3) is also indicative of recent admixture.
Detailed analysis revealed that a large proportion of Drosophila immune genes interact epistatically with each other [16], [17] and that some Drosophila immune receptors can display high levels of linkage disequilibrium [18].
The integrated haplotype score (iHS) is based on the differential levels of linkage disequilibrium surrounding a positively selected allele compared to the background allele at the same position (Table S1) [5].
In line with previous results [16], we found low and homogenous levels of linkage disequilibrium in the three loci with >500 bp sequence data (AGRP1, MC1R and TYR), with ZnS [19] values of 0.06 in all cases.
It was considered promising to undertake initial allelic association studies to prospect for virulence polymorphisms in Thailand, as the low endemicity would allow higher levels of linkage disequilibrium (LD) than would exist in more highly endemic areas.
