Potato Breeding via Ploidy Manipulations

Ortíz, Rodomiro

doi:10.1002/9780470650110.ch2

Cited by 45 publications

(46 citation statements)

References 296 publications

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“…However, as breeding material, they currently can be difficult to use as they tend to perform poorly and also do not have clear traits that would be valuable for introgression into today's common commercial cultivars. The use of wild Solanum species is often more interesting for potato breeding for pathogen resistance breeding (Ortiz 1998).…”

Section: Current Potato Breeding In Sweden Potato Genetic Resourcesmentioning

confidence: 99%

Overview and Breeding Strategies of Table Potato Production in Sweden and the Fennoscandian Region

et al. 2016

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Recent reductions in the public commitment to potato breeding in Sweden, Norway and Finland call for an evaluation of the current situation regarding the commercial basis for, and structure of, potato breeding in these countries. We here review the extent of cultivation, processing and consumption of table potato in Sweden, as well as provide an overview of the potato breeding tools and programmes in the three countries. We then discuss various strategies to provide long-term stability and increase the impact of public potato breeding, based on the similar overall conditions for potato cultivation across the Fennoscandian region. The conclusions are twofold; first, an increased long-term funding of the public potato breeding programmes is necessary to maintain a minimum level of material, and second, a coordination of the breeding activities in the Fennoscandian region would be of great benefit to all involved stakeholders and allow an enhancement of the current national breeding programmes. In addition, we propose a minimum first field year population size for potato breeding.

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Section: Current Potato Breeding In Sweden Potato Genetic Resourcesmentioning

confidence: 99%

Overview and Breeding Strategies of Table Potato Production in Sweden and the Fennoscandian Region

et al. 2016

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“…GISH has been useful to discriminate potato chromosomes from those belonging to species from other Solanum sections like tomato (Jacobsen et al 1995;Garriga-Calderé et al 1997, 1998 or S. nigrum (Horsman et al 2001). Within section Petota, GISH has been successfully used for hybrids between S. tuberosum Group Tuberosum and non-tuber bearing potato relatives carrying the E genome (Matsubayashi 1991), like S. brevidens (Dong et al 2001;Gavrilenko et al 2002;Tek et al 2004;Dong et al 2005) or S. etuberosum (Dong et al 1999;Gavrilenko et al 2003).…”

Section: Discussionmentioning

confidence: 99%

“…When GISH was combined with chromosome-specific molecular markers the transmission and segregation of individual chromosomes could be traced in potato (?) tomato fusion hybrids (Jacobsen et al 1995;Garriga-Calderé et al 1997, 1998 and wide potato hybrids (Ono et al 2016). This approach has also been used to elucidate the genomic constitution of wild allopolyploid species (Pendinen et al 2008(Pendinen et al , 2012.…”

Section: Introductionmentioning

confidence: 99%

“…However, crossing and zygotic barriers in the interspecific hybrids and backcross derivatives, particularly in those belonging to the secondary and tertiary genepool (Bradshaw 2007), may impede the introgression programmes and thus, considerable efforts have been devoted to overcoming such barriers (reviewed by Jansky 2006) by ploidy manipulation (reviewed by Ortiz 1998;Ortiz et al 2009) and/or bridge crosses ). The most prominent hybridisation barrier in the potato gene pool is endosperm balance number (EBN).…”

Section: Introductionmentioning

confidence: 99%

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Pairing analysis and in situ Hybridisation reveal autopolyploid-like behaviour in Solanum commersonii × S. tuberosum (potato) interspecific hybrids

et al. 2017

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Wild potato relatives are rich sources of desirable traits for introgressive hybridisation into cultivated potato. One of them, Solanum commersonii (2n = 2x = 24, 1EBN, endosperm balance number), is an important species belonging to the potato tertiary genepool. It can be used in potato breeding through bridge crosses and 2n gamete production. Triploid F 1 hybrids between S. commersonii (through spontaneous 2n egg formation) and diploid 2EBN Solanum tuberosum Group Phureja were crossed with S. tuberosum Group Tuberosum, resulting in successive backcross 1, 2 and 3 progenies. The main aim of this study was to determine if there are any barriers to homoeologous pairing and recombination in the allotriploid (S. commersonii 9 potato) hybrids and their backcrosses, and so to predict if S. commersonii chromosomes can be transmitted to the next generation and introgressed into their recipient potato chromosomes. Microscopic observations of spread pollen mother cells suggested no preferential pairing in the triploid hybrids, while chromosome transmission and segregation in further meiotic stages were fairly balanced. Fluorescent in situ hybridisation with BAC probes (BAC FISH) was used to obtain markers to trace the meiotic behaviour of specific chromosome pairs. Moreover, genomic in situ hybridisation (GISH) demonstrated no obvious differences in fluorescence signals between the homoeologues suggesting that repetitive sequences did not diverge much between the parental species. As a consequence, we were not able to trace the course of the S. commersonii chromosomes in the successive introgressive hybridisation backcross generations. Our results strongly point at a high genomic similarity between the homoeologous chromosomes promising high suitability of S. commersonii in introgressive hybridisation breeding of potato.

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“…es conocido que las especies silvestres de Solanum spp. contienen genes de resistencia contra prácticamente todas las enfermedades importantes de la papa (Bamberg et al 1994, ortiz 1998, Jansky 2000. Jansky y rouse (2003) trataron de usar estos genes de resistencia contra diferentes enfermedades para el desarrollo de híbridos inter-específicos.…”

Section: Factores De La Plantaunclassified

La sarna plateada (Helminthosporium solani [Dur. & Mont.]), una enfermedad de creciente importancia en papa.

Hofmann

2009

Agron. Mesoam.

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Potato Breeding via Ploidy Manipulations

Cited by 45 publications

References 296 publications

Overview and Breeding Strategies of Table Potato Production in Sweden and the Fennoscandian Region

Overview and Breeding Strategies of Table Potato Production in Sweden and the Fennoscandian Region

Pairing analysis and in situ Hybridisation reveal autopolyploid-like behaviour in Solanum commersonii × S. tuberosum (potato) interspecific hybrids

La sarna plateada (Helminthosporium solani [Dur. & Mont.]), una enfermedad de creciente importancia en papa.

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