Abstract
The usefulness of identifying genetic linkage is paramount in breeding in order to study QTLs and employ MAS selection. Before the construction of a complete linkage map, genome length and the number of markers necessary to cover the genome have to be estimated. Nevertheless, in perennial woody angiosperms there is absence of appropriate genetic families, therefore total genome length has to be assessed from partial linkage data only. It is proposed to estimate genome length by extending the use of the moments and the Poisson probability methods. In addition, it is proposed to employ in both approaches a common estimate of mapping distance, by using the θ value of the locus pair chosen from all linkage groups as having the maximum estimated LOD score over a specified threshold Z. The rational of this proposition is presented along with a discussion of pertinent theory.
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