Genomic Outcomes of Haploid Induction Crosses in Potato (Solanum tuberosum L.).

ABSTRACT: The challenges of breeding autotetraploid potato (Solanum tuberosum) have motivated the development of alternative breeding strategies. A common approach is to obtain uniparental dihaploids from a tetraploid of interest through pollination with S. tuberosum Andigenum Group (formerly S. phureja) cultivars. The mechanism underlying haploid formation of these crosses is unclear, and questions regarding the frequency of paternal DNA transmission remain. Previous reports have described aneuploid and euploid progeny that, in some cases, displayed genetic markers from the haploid inducer (HI). Here, we surveyed a population of 167 presumed dihaploids for large-scale structural variation that would underlie chromosomal addition from the HI, and for small-scale introgression of

SUBMITTER: Amundson KR 

PROVIDER: S-EPMC7017018 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature