## Mapping, combining abilities, heritabilities and heterosis with 4x x 2x crosses in potato |

### From inside the book

Results 1-3 of 16

Page 61

In the commercial potato, Solanum tuberosum L. . the traditional breeding

scheme, that is, 4x x 4x crosses, does not permit an accurate genotypic

evaluation of the parents for the following main reasons; 1) at the 4x

number of ...

In the commercial potato, Solanum tuberosum L. . the traditional breeding

scheme, that is, 4x x 4x crosses, does not permit an accurate genotypic

evaluation of the parents for the following main reasons; 1) at the 4x

**level**, thenumber of ...

Page 68

The

of these formed 2n pollen by FDR with ... Moreover, due to the higher

intra- and inter-locus interactions existing at the 4x

The

**2x**FDR clones were full-sibs of a US-W5295.7(1) x US-W5337.3(J) cross, 20of these formed 2n pollen by FDR with ... Moreover, due to the higher

**level**ofintra- and inter-locus interactions existing at the 4x

**level**when compared to the**2x**...Page 106

Comparison of possible epistatic interactions at the 2x and 4x ploidy levels. For n

heterozygous loci, the greatest number of possible epistatic interactions : at the

Comparison of possible epistatic interactions at the 2x and 4x ploidy levels. For n

heterozygous loci, the greatest number of possible epistatic interactions : at the

**2x level**k-n IC k k-1 ^-n-k y~2 n A V^njjn-k ^nAxA ^nDxD k-2 at the 4x level k-n ...### What people are saying - Write a review

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### Contents

Genetic Mapping of Three Linked Genes | 34 |

Results | 78 |

Comparisons between 2x FDRCO and 2x FDRNCO | 94 |

2 other sections not shown

### Common terms and phrases

2n eggs 2n gamete formation 2x clones 2x crosses 2x FDR-CO 2x genotypes 2x level 2x parents 4x cultivars 4x progeny 4x x 2x centromere chromosome combining abilities coupling phase cytokinesis depending on frequency diploid distal locus division restitution dominance variance double crossovers double exchange tetrads endosperm epistasis epistatic estimates expressed as map FDR and SDR FDR or SDR form 2n gametes form 2n pollen Frequencies of parental frequency of single gametic series produced GCA variance genotypes in coupling haploid heterosis heterozygosity heterozygous heterozygous loci homozygous linked genes map units marketable tuber yield meiocytes mode of 2n periderm Phureja ploidy polyploidization potato progenies from 4x proximal locus random chromatid exchange repulsion phase rH rH S. J. Peloquin SDR mode SET.I single and double single exchange tetrads Solanum Solanum tuberosum specific gravity Table tetrad analysis tetraploid total tuber yield tuber shape types of 2n unpigmented