Cytoplasmic sterility in derivatives ofSolanum demissum

  title={Cytoplasmic sterility in derivatives ofSolanum demissum},
  author={Leo A. Dionne},
  journal={American Potato Journal},
  • L. Dionne
  • Published 1 April 1961
  • Biology
  • American Potato Journal
SummaryThe crossS. demissum xS. tuberosum has been the basis for many programs of breeding for resistance toPhytophthora infestans. The F1 of this cross and subsequent back-crosses toS. tuberosum are generally non-functional as male parents; uninterrupted back-crossing is therefore obligatory in programs based on this initial cross. Since recessive and incompletely dominant factors are likely to be lost by continuous back-crossing, the male sterility of such hybrids can be a serious… 

Characterization of Crossability in the Crosses between Solanum demissum and S. tuberosum, and the F1 and BC1 Progenies

Materiales are useful in exploring the molecular mechanism of EBN because the degree of imbalanced EBN could be measured as quantitative traits, and the grado of desbalanceamiento de EBN pudiera medirse como caracteres cuantitativos.

Overcoming unilateral incompatibility in crosses with wild allotetraploid potato species Solanum stoloniferum Schldtl. & Bouchet

The germplasm of valuable for breeding wild allotetraploid potato species Solanum stoloniferum is rarely used because of pre- and postzygotic reproductive barriers with cultivated potatoes and one of the factors that complicate crosses is unilateral incompatibility (UI).

Male fertility and 2n pollen production in haploid-wild species hybrids

2x hybrids from crosses between Group Tuberosum haploids and 24-chromosome, wild species must be fertile and produce 2n gametes if they are to be used in breeding schemes involving sexual polyploidization, resulting in a large number of 2n pollen-producing hybrids.

A maternally inherited DNA marker, descended from Solanum demissum (2n = 6x = 72) to S. tuberosum (2n = 4x = 48)

Band 1 is a useful marker to distinguish dms cytoplasm, which enables us to design efficient mating combinations in breeding programs, and was maternally inherited from dms to S. tuberosum through backcrosses.

Cytoplasmic genetic diversity of potato varieties bred in Russia and FSU countries

Fertility phenotyping helped identify both male-sterile and male-fertile genotypes within the three groups of varieties with T-, D and W/γ-type cytoplasm, which confirmed the association of these SNPs with tetrad sterility in a larger set of 28 genotypes of different origin.

Reinventing potato as a diploid inbred line-based crop

This paper proposes to convert potato into a diploid inbred line–based crop propagated by true seed and calls on leaders of public and private organizations to explore the feasibility of this radical and exciting new strategy in potato breeding.

Reciprocal differences in DNA sequence and methylation status of the pollen DNA between F1 hybrids of Solanum tuberosum × S. demissum

To the authors' knowledge, this is the first report detecting reciprocal differences in DNA sequence or DNA methylation other than those in cytoplasmic DNA.

Overcoming hybridization barriers in potato

Cross barriers between most wild species and the cultivated potato are the consequence of differences in EBN and can be easily overcome using ploidy manipulations and bridge crosses.


The information about the presence of markers of R genes and about cytoplasm types of hybrids and varieties will allow an effective implementation of further breeding programs for resistance to a complex of pathogens, including pyramiding of R genes.

Chloroplast genome sequence of Solanum demissum, a wild tuber-bearing species was completed

Maximum likelihood phylogenetic analysis with 30 Solanaceae species revealed that S. demissum is most closely grouped with S. hougasii and S. stoloniferum.



2,4-Dichlorophenoxyacetic Acid as an aid to Seed Production when widely separated Solanum Species are crossed

This work showed that some pollen germinated in all attempted crosses between several tuber-bearing series of the genus Solanum, and apparently normal pollen tubes were even observed at the bases of S. phureja Juz.


Annual report (Abridged)

  • Scottish Soc. for Res. in Plant Breeding. p
  • 1943