Polyploidy is remarkably common in the plant kingdom and polyploidization is a major driving force for plant genome evolution. Polyploids may contain genomes from different parental species (allopolyploidy) or include multiple sets of the same genome (autopolyploidy). Genetic and epigenetic changes associated with allopolyploidization have been a major research subject in recent years. However,...

Journal 01 Heredity 1988;79:377-384; OI)~2-1503!88!$2.00 Horizontal starch gel electrophoresis was used to pertorm genetic analysis to confirm the inheritance of various isozyme loci and report on additional loci in diploid Solanum species. Aps-I, Dis-I, and Idh-1 were identified as new loci, and tetrasomic seg­ regati on was reported at the tetraploid level for Mdh-2. Of 15 loci stu died, d Is...

Genes associated with gametic and zygotic selection could underlie segregation distortion, observed as alterations of expected Mendelian genotypic frequencies in mapping populations. We studied highly dense genetic maps based on single nucleotide polymorphisms to elucidate the genetic nature of distorted segregation in potato. Three intra- and interspecific diploid segregating populations were ...

Late blight, caused by Phytophthora infestans (Mont.) de Bary, is the most destructive disease of potato worldwide. As this pathogen can rapidly overcome major race-specific resistance genes, identifying the basis for enhanced quantitative resistance has become a crucial element for implementing advanced breeding strategies. A population of 230 full-sib progeny derived from a cross between two ...

It has long been known that the phytohormone auxin plays a promoting role in tuber formation and stress tolerance potatoes. Our study aimed to identify characterize complete sets of auxin-related genes presumably constitute entire signaling system potato (Solanum tuberosum L.). The corresponding were retrieved from sequenced genomes doubled monoploid S. DM1-3-516-R44 (DM) Phureja group, heteroz...