TABLE 2

Gene frequency at the ps locus estimated in diploid ancestors and tetraploid-deriving potatoes

Solanum speciesPloidyps gene frequencyReference
Ancestors
    S. sparsipilum2n = 2x0.39Watanabe and Peloquin (1989)
    S. tuberosum group Phureja2n = 2x0.47Watanabe and Peloquin (1989)
    S. tuberosum group Stenotomum2n = 2x0.42Watanabe and Peloquin (1989)
Derivatives
    S. tuberosum group Andigena2n = 4x0.85Watanabe and Peloquin (1989)
    S. tuberosum group Tuberosum2n = 4x0.69Iwanaga and Peloquin (1982)
Ancestors
    S. gourlayi2n = 2x0.46Camadro and Peloquin (1980)
    S. infundibuliforme2n = 2x0.37Camadro and Peloquin (1980)
Derivative
    S. gourlayi2n = 4x0.80Watanabe and Peloquin (1989)