Introgression of Wild Species Germplasm with Extreme Resistance to Cold Sweetening into the Cultivated Potato

Crop Science ◽  
2009 ◽  
Vol 49 (2) ◽  
pp. 529-542 ◽  
Author(s):  
A. J. Hamernik ◽  
R. E. Hanneman ◽  
S. H. Jansky
Keyword(s):  
Wild Species ◽  
Extreme Resistance ◽  
Cultivated Potato ◽  
Cold Sweetening

scholarly journals Correction to: Transcriptome profiling of resistance response to Meloidogyne chitwoodi introgressed from wild species Solanum bulbocastanum into cultivated potato

BMC Genomics ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Sapinder Bali ◽  
Kelly Vining ◽  
Cynthia Gleason ◽  
Hassan Majtahedi ◽  
Charles R. Brown ◽  
...  
Keyword(s):  
Wild Species ◽  
Transcriptome Profiling ◽  
Solanum Bulbocastanum ◽  
Resistance Response ◽  
Meloidogyne Chitwoodi ◽  
Cultivated Potato

Following the publication of this article [1], the authors noted an error in Figure 11.

scholarly journals Genome diversity of tuber-bearing Solanum uncovers complex evolutionary history and targets of domestication in the cultivated potato

2017 ◽  
Vol 114 (46) ◽  
pp. E9999-E10008 ◽  
Author(s):  
Michael A. Hardigan ◽  
F. Parker E. Laimbeer ◽  
Linsey Newton ◽  
Emily Crisovan ◽  
John P. Hamilton ◽  
...  
Keyword(s):  
Wild Species ◽  
Geographic Origin ◽  
Haplotype Diversity ◽  
Natural Populations ◽  
Genome Diversity ◽  
Early Improvement ◽  
Cultivated Potato ◽  
Long Day ◽  
Signatures Of Selection ◽  
The Impact

Cultivated potatoes (Solanum tuberosum L.), domesticated from wild Solanum species native to the Andes of southern Peru, possess a diverse gene pool representing more than 100 tuber-bearing relatives (Solanum section Petota). A diversity panel of wild species, landraces, and cultivars was sequenced to assess genetic variation within tuber-bearing Solanum and the impact of domestication on genome diversity and identify key loci selected for cultivation in North and South America. Sequence diversity of diploid and tetraploid S. tuberosum exceeded any crop resequencing study to date, in part due to expanded wild introgressions following polyploidy that captured alleles outside of their geographic origin. We identified 2,622 genes as under selection, with only 14–16% shared by North American and Andean cultivars, showing that a limited gene set drove early improvement of cultivated potato, while adaptation of upland (S. tuberosum group Andigena) and lowland (S. tuberosum groups Chilotanum and Tuberosum) populations targeted distinct loci. Signatures of selection were uncovered in genes controlling carbohydrate metabolism, glycoalkaloid biosynthesis, the shikimate pathway, the cell cycle, and circadian rhythm. Reduced sexual fertility that accompanied the shift to asexual reproduction in cultivars was reflected by signatures of selection in genes regulating pollen development/gametogenesis. Exploration of haplotype diversity at potato’s maturity locus (StCDF1) revealed introgression of truncated alleles from wild species, particularly S. microdontum in long-day–adapted cultivars. This study uncovers a historic role of wild Solanum species in the diversification of long-day–adapted tetraploid potatoes, showing that extant natural populations represent an essential source of untapped adaptive potential.

Development of an effective protoplast fusion system for production of new potatoes with disease and insect resistance using Mexican wild potato species as gene pools

2008 ◽  
Vol 88 (4) ◽  
pp. 611-619 ◽  
Author(s):  
Qin Chen ◽  
H. Y. Li ◽  
Y. Z. Shi ◽  
D. Beasley ◽  
B. Bizimungu ◽  
...  
Keyword(s):  
Late Blight ◽  
Protoplast Fusion ◽  
Insect Resistance ◽  
Colorado Potato Beetle ◽  
Wild Species ◽  
Somatic Hybrids ◽  
Fusion System ◽  
Cultivated Potato ◽  
Potato Species ◽  
Potato Beetle

Somatic hybridization through protoplast fusion is an important alternative approach for overcoming sexual incompatibility between diploid Solanum species and cultivated potatoes. However, compared with other potato species, methods for protoplast isolation and plant generation for several Mexican wild diploid potato species are not well established. In this study, a systematic procedure was designed for the isolation of a large number of high-quality protoplasts from various Mexican wild species that carry high levels of disease (late blight) and insect [Colorado potato beetle (CPB)] resistance. Using this procedure, an effective potato protoplast fusion system was developed to produce new somatic hybrids between two Mexican, one Argentina wild species, and cultivated potato clones. Regenerated plants and somatic hybrids were obtained at a high frequency from the protoplasts of the diploid wild species and their fused cells with S. tuberosum. Morphological, cytological and molecular marker analyses demonstrated that somatic hybrids were successfully obtained from the cell fusion of S. tuberosum and the diploid species S. pinnatisectum, S. cardiophyllum, and S. chacoense. Assessment of disease and insect reactions demonstrated that several of the protoplast-derived clones and somatic hybrids showed a higher level of resistance to both late blight and CPB than was found in S. tuberosum, confirming that the protoplast system is a powerful tool in potato breeding programs for the development of disease and insect resistance. This new fusion system provides breeders with opportunities to transfer disease and insect resistance genes from Mexican wild species into cultivated potato. Key words: Somatic hybrid, protoplast, fusion, potato, Solanum, late blight, disease resistance, Colorado potato beetle insect resistance

scholarly journals Nongenetic Inheritance of Induced Resistance in a Wild Annual Plant

2016 ◽  
Vol 106 (8) ◽  
pp. 877-883 ◽  
Author(s):  
Åsa Lankinen ◽  
Kibrom B. Abreha ◽  
Erik Alexandersson ◽  
Stefan Andersson ◽  
Erik Andreasson
Keyword(s):  
Induced Resistance ◽  
Wild Species ◽  
Agricultural Landscape ◽  
Lesion Size ◽  
Wild Relative ◽  
Model Species ◽  
Cultivated Potato ◽  
Epigenetic Effects ◽  
Resistance To Infection ◽  
Nongenetic Inheritance

Nongenetic inheritance (e.g., transgenerational epigenetic effects) has received increasing interest in recent years, particularly in plants. However, most studies have involved a few model species and relatively little is known about wild species in these respects. We investigated transgenerational induced resistance to infection by the devastating oomycete Phytophthora infestans in Solanum physalifolium, a wild relative of cultivated potato. We treated plants with β-aminobutyric acid (BABA), a nontoxic compound acting as an inducing agent, or infected plants with P. infestans. BABA treatment reduced lesion size in detached-leaf assays inoculated by P. infestans in two of three tested genotypes, suggesting that resistance to oomycetes can be induced by BABA within a generation not only in crops or model species but also in wild species directly collected from nature. Both BABA treatment and infection in the parental generation reduced lesions in the subsequent generation in one of two genotypes, indicating a transgenerational influence on resistance that varies among genotypes. We did not detect treatment effects on seed traits, indicating the involvement of a mechanism unrelated to maternal effects. In conclusion, our study provides data on BABA induction and nongenetic inheritance of induced resistance in a wild relative of cultivated potato, implying that this factor might be important in the ecological and agricultural landscape.

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