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

### From inside the book

Results 1-3 of 10

Page xv

Number of possible 2n gametic combinations with meiotic mutants 105 Table 2.

Comparison of ...

and with single exchange tetrads with FDR and SDR 6 Figure 2. 2n gametic

series ...

Number of possible 2n gametic combinations with meiotic mutants 105 Table 2.

Comparison of ...

**Gametic series produced**from a heterozygous locus withoutand with single exchange tetrads with FDR and SDR 6 Figure 2. 2n gametic

series ...

Page 11

In any case, mixtures of the two modes of 2n gamete formation would have

precluded the use of HTA for mapping purposes. ... The 2n

NET, SET.

In any case, mixtures of the two modes of 2n gamete formation would have

precluded the use of HTA for mapping purposes. ... The 2n

**gametic series****produced**by heterozygous genotypes from FDR and SDR 2x genotypes withNET, SET.

Page 12

2 n

or SDR with no exchange tetrads or only a single exchange tetrad either in

region I or in region II. Figure 3. 2n

in.

2 n

**gametic series produced**by heterozygous loci in coupling phase by FDR fi Sor SDR with no exchange tetrads or only a single exchange tetrad either in

region I or in region II. Figure 3. 2n

**gametic series produced**by heterozygous lociin.

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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