Each connected component composed of more than two nodes was defined as an independent haplotype class.
In this, case the variation between haplotype classes was quantitative rather than qualitative and the Kruskall-Wallis test showed that the blast disease resistance score of the populations of varieties corresponding to each of these haplotypes differed significantly.
It consists of one main haplotype, whereas the remaining haplotypes differ by one (eight haplotypes) or two (one haplotype) substitutions.
The haplotype classes were formed so that the most common haplotypes formed separate classes, the very rare haplotypes were all combined in one class, and the unknown haplotypes were classified as a separate class (see Table 4).
Haplotype clustering highlighted different population substructures ranging from homogeneous populations (composed of only one haplotype class) to composite populations (composed of up to three haplotype classes).
a) Haplotype H im is associated to a class in A M and haplotype H if is associated to a class in A F. b) One haplotype is associated to a class in A. and the other haplotype is associated to a class not in the other list of haplotype classes.
The main haplotype of this group differs by four substitutions from another main haplotype that occurs in 13 individuals from five different localities.
Imagine that all haplotypes in a population are represented in a list of haplotype classes, A, and that a haplotype is identical to the class to which it is associated.
The frequency distribution of the haplotype classes varies significantly worldwide; χ = 362, p = 6.08 × 10-68.
Figure 1 graphically represents this crossbreeding situation with the two list of haplotype classes.
