Pedigree-Based Deciphering of Genome-Wide Conserved Patterns in an Elite Potato Parental Line.

ABSTRACT: Elite parental lines are more likely to breed fine varieties, but knowledge about elite parents and their genetic backgrounds is limited. In this paper, we investigated the pedigree relationships of potato varieties bred worldwide and in China. Several elite parents were identified, and these parents were more frequently used as parents in breeding programs across different time periods and countries. We next used 2b-RAD, a reduced-representation sequencing method, to genotype the elite parent Mira and 24 of its offspring. These cultivars span 5 generations, making this lineage the longest continuous pedigree among Chinese bred potatoes. A total of 47,314 tetraploid single nucleotide polymorphisms (SNPs) identified by FreeBayes were used to trace the conserved segments of the Mira genome.

SUBMITTER: Li X 

PROVIDER: S-EPMC5974212 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature