Graphical genotyping as a method to map Ny _(o,n)sto and Gpa5 using a reference panel of tetraploid potato cultivars.

ABSTRACT:

Key message

The method of graphical genotyping is applied to a panel of tetraploid potato cultivars to visualize haplotype sharing. The method allowed to map genes involved in virus and nematode resistance. The physical coordinates of the amount of linkage drag surrounding these genes are easily interpretable. Graphical genotyping is a visually attractive and easily interpretable method to represent genetic marker data. In this paper, the method is extended from diploids to a panel of tetraploid potato cultivars. Application of filters to select a subset of SNPs allows one to visualize haplotype sharing between individuals that also share a specific locus. The method is illustrated with cultivars resistant to Potato virus Y (PVY), while simultaneously selecting for the absence of t

SUBMITTER: van Eck HJ 

PROVIDER: S-EPMC5315735 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature