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

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Results 1-3 of 40

Page xi

Tuber shape of 4x progeny from crosses between four, 4x cultivars with long (L)

or oval (Ov) tubers and seven,

pollen by FDR with crossing over, FDR-CO (ps/ps) or by FDR without crossing

over, ...

Tuber shape of 4x progeny from crosses between four, 4x cultivars with long (L)

or oval (Ov) tubers and seven,

**2x clones**with round (Ro) tubers which form 2npollen by FDR with crossing over, FDR-CO (ps/ps) or by FDR without crossing

over, ...

Page 43

tetraploid progeny from crosses between a 4x cultivar Sirtema with round tuber (

Ro) and four,

2n pollen by either FDR-CO or FDR-NCO. (Table 3). The data fit a 5:1 ratio of ...

tetraploid progeny from crosses between a 4x cultivar Sirtema with round tuber (

Ro) and four,

**2x**IxJ progeny**clones**with oval (Ov) or long (L) tubers which form2n pollen by either FDR-CO or FDR-NCO. (Table 3). The data fit a 5:1 ratio of ...

Page 49

crosses between eight, 4x unpigmented (Dp) female

unpigmented (Up) male

genotypes of these different progenies, none presented pigmented eye areas (

Table 7).

crosses between eight, 4x unpigmented (Dp) female

**clones**and 11,**2x**unpigmented (Up) male

**clones**, either FDR-CO or FDR-NCO. Of the 2162 4sgenotypes of these different progenies, none presented pigmented eye areas (

Table 7).

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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