Soft-rot Resistance of Coloured Potato Cultivars (Solanum tuberosum L.): The Role of Anthocyanins

2007 ◽  
Vol 50 (1) ◽  
pp. 31-44 ◽  
Author(s):  
Christina B. Wegener ◽  
Gisela Jansen
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Soft Rot ◽  
Potato Cultivars

scholarly journals Etude Des Effets Des Régulateurs De Croissance Sur La Les Stades De Prolifération Et De Développement De La Pomme De Terre (Solanum Tuberosum. L) In Vitro

2017 ◽  
Vol 13 (24) ◽  
pp. 145
Author(s):  
Sadek Chahredine ◽  
Nadia Ykhlef
Keyword(s):  
Solanum Tuberosum ◽  
Callus Induction ◽  
Solanum Tuberosum L ◽  
Naphthaleneacetic Acid ◽  
Compact Structure ◽  
Potato Plants ◽  
Régulateurs De Croissance ◽  
Role Of Light

The aim of this study is to determine the effects of different concentrations and combinations of the phytohormones, 1-naphthaleneacetic acid (NAA), and 6-benzylaminopurine (BAP): M1 (0.5 mg / l +1 mg / l), M2 (1 mg / l + 0.5 mg / l) , M3 (2 mg / l +2 mg / l), M4 (0.5 mg / l + l mg / l, NAA), M5 (1.0 mg / l + l mg / l , NAA), and M6 (2.0 mg / l + l mg / l, NAA). This study was carried out in dark condition on callus induction of potato plants (Solanum tuberosum L.) cultivars from potato tuber bud so as to demonstrate the role of light. The callus initiation begins after 7 days of incubation for all studied media. After two months of incubation, the better development of callus was noted in Spunta variety by using medium M1, M2, M3, and M6. The calluses took a compact structure of brown-white color for both varieties with a callus induction rate of 20- 40%. This was collected with kondor variety for M2 and (M3, M4, M5) media respectively and 10-30% for M4 (M1, M2, M3) for Spunta variety also. The highest fresh weight was recorded on M2 medium with 0.26g for Kondor variety and 0.93g for Spunta variety.

scholarly journals Genome-Wide Association Mapping of Late Blight Tolerance Trait in Potato (Solanum tuberosum L.)

2021 ◽  
Vol 12 ◽  
Author(s):  
Fang Wang ◽  
Meiling Zou ◽  
Long Zhao ◽  
Zhiqiang Xia ◽  
Jian Wang
Keyword(s):  
Solanum Tuberosum ◽  
Late Blight ◽  
Potato Breeding ◽  
Genome Wide Association Study ◽  
Solanum Tuberosum L ◽  
Potato Cultivars ◽  
Genome Wide Association ◽  
Genome Wide ◽  
Population Structure Analysis ◽  
A Genome

Uncovering the genetic basis and optimizing the late blight tolerance trait in potatoes (Solanum tuberosum L.) are crucial for potato breeding. Late blight disease is one of the most significant diseases hindering potato production. The traits of late blight tolerance were evaluated for 284 potato cultivars to identify loci significantly associated with the late blight tolerance trait. Of all, 37 and 15 were the most tolerant to disease, and 107 and 30 were the most susceptible. A total of 22,489 high-quality single-nucleotide polymorphisms and indels were identified in 284 potato cultivars. All the potato cultivars were clustered into eight subgroups using population structure analysis and principal component analysis, which were consistent with the results of the phylogenetic tree analysis. The average genetic diversity for all 284 potato cultivars was 0.216, and the differentiation index of each subgroup was 0.025–0.149. Genome-wide linkage disequilibrium (LD) analysis demonstrated that the average LD was about 0.9 kb. A genome-wide association study using a mixed linear model identified 964 loci significantly associated with the late blight tolerance trait. Fourteen candidate genes for late blight tolerance traits were identified, including genes encoding late blight tolerance protein, chitinase 1, cytosolic nucleotide-binding site–leucine-rich repeat tolerance protein, protein kinase, ethylene-responsive transcription factor, and other potential plant tolerance-related proteins. This study provides novel insights into the genetic architecture of late blight tolerance traits and will be helpful for late blight tolerance in potato breeding.

scholarly journals In vitro Regeneration and Agrobacterium-mediated Transformation of Potato (Solanum tuberosum L.) Cultivars Grown in Mexico

2013 ◽  
Vol 22 (2) ◽  
pp. 93-105 ◽  
Author(s):  
Rose Onamu ◽  
Juan P Legaria ◽  
Jaime C Sahagún ◽  
José L Rodríguez ◽  
Joel N Pérez
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
In Vitro Regeneration ◽  
Potato Cultivars ◽  
Pcr Analysis ◽  
Nptii Gene ◽  
Histochemical Assay ◽  
Gus Histochemical Assay ◽  
Binary Plasmid

Prior to Agrobacterium-mediated genetic transformation in vitro regeneration protocol was established for three potato cultivars (Alfa, Cambray Rosa Morelos and Atlantic) grown in Mexico using leaf, node and internodal explants. Regeneration protocol was developed with or without the intervention of callus. Two potato cultivars, namely, Cambray Rosa Morelos and Alpha were transformed using Agrobacterium tumefaciens strain LBA4404 harboring binary plasmid pBI121 containing the GUS and nptII genes. GUS histochemical assay and PCR analysis were conducted on rooted shoots grown in media without hormones but supplemented with antibiotics. Transformed shoots tested positive through GUS histochemical assay and integration of nptII gene was confirmed by PCR analysis DOI: http://dx.doi.org/10.3329/ptcb.v22i2.14193 Plant Tissue Cult. & Biotech. 22(2): 93-105, 2012 (December)

Suitability of five different potato cultivars (Solanum tuberosum L.) to be processed as fresh-cut products

2009 ◽  
Vol 53 (3) ◽  
pp. 138-144 ◽  
Author(s):  
Ana B. Cabezas-Serrano ◽  
Maria L. Amodio ◽  
Rosaria Cornacchia ◽  
Raffaella Rinaldi ◽  
Giancarlo Colelli
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Potato Cultivars ◽  
Fresh Cut

RESPONSE OF FOUR POTATO CULTIVARS TO METRIBUZIN TIME AND RATE OF APPLICATION

1979 ◽  
Vol 59 (2) ◽  
pp. 417-422 ◽  
Author(s):  
J. A. IVANY
Keyword(s):  
Adverse Effect ◽  
Solanum Tuberosum ◽  
Irish Cobbler ◽  
Prince Edward Island ◽  
Solanum Tuberosum L ◽  
Potato Cultivars

Over a 4-yr period (1974–1977) the effect of metribuzin at three rates and times of application was evaluated on four potato (Solanum tuberosum L.) cultivars commonly grown on Prince Edward Island. Metribuzin applied preemergence and early postemergence had no adverse effect on marketable and total yields of Irish Cobbler, Netted Gem, Kennebec, and Sebago cultivars. Delaying metribuzin application until late postemergence resulted in significantly reduced marketable yields of Irish Cobbler and Sebago but not Netted Gem and Kennebec when compared with preemergence and early postemergence treatment. Total yields with late postemergence treatment were significantly less than those with the preemergence treatment for all four cultivars and significantly less than early postemergence treatment with Irish Cobbler and Sebago.

scholarly journals Study of biochemical variability of potato cultivars by soluble protein, isoesterase, and isoperoxidase electrophoretic patterns

2011 ◽  
Vol 49 (No. 5) ◽  
pp. 230-236 ◽  
Author(s):  
J. Bárta ◽  
V. Čurn ◽  
J. Diviš
Keyword(s):  
Solanum Tuberosum ◽  
Soluble Protein ◽  
Solanum Tuberosum L ◽  
Potato Cultivars ◽  
Protein Polymorphism ◽  
Cultivar Differences ◽  
Electrophoretic Patterns ◽  
Complex Patterns ◽  
Biochemical Variability ◽  
Protein Spectra

Biochemical variability between thirteen European and five Czech potato (Solanum tuberosum L.) cultivars grown in theCzechRepublic was studied by soluble protein, isoesterase, and isoperoxidase electrophoretic patterns. It was confirmed that cultivar differences in protein polymorphism can be revealed by applied electrophoretic patterns. It was shown that the different character of protein and isozyme profiles required different approaches to their evaluation. For complex patterns such as electrophoretic soluble protein spectra, it is more convenient to use the evaluation of their absorbance profiles and for simpler profiles of isozymes the evaluation based on the presence or absence of a band in a definite position (simple matching) should be used. In spite of the complexity of tetraploid disposition of analysed cultivars, the results suggested higher similarity of profiles between relative cultivars and they also indicated the existence of higher similarity between cultivars from the same breeding firm.  

EFFECTS OF APPLIED NITROGEN ON YIELDS, TUBER SIZES, AND SPECIFIC GRAVITIES OF TWO POTATO CULTIVARS

1977 ◽  
Vol 57 (3) ◽  
pp. 803-810 ◽  
Author(s):  
D. C. MUNRO ◽  
R. P. WHITE ◽  
J. B. SANDERSON
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Prince Edward Island ◽  
Solanum Tuberosum L ◽  
Potato Cultivars ◽  
N Application ◽  
Significant Yield ◽  
Yield Responses ◽  
Tuber Specific Gravity ◽  
Applied Nitrogen

Potatoes (Solanum tuberosum L. cv. Sebago and Netted Gem) were grown at several locations on Prince Edward Island over a 5-yr period with rates of applied N from zero to 336 kg/ha. Significant yield responses to applied N occurred at all locations each year with each cultivar. At most locations, 112–134 kg N/ha was adequate for maximum yields. The response of the two cultivars to applied N was similar. Applied N up to 134 kg/ha increased the percentage yields of A-size tubers. Tuber specific gravity was affected by N application at only 8 of the 15 locations. Generally, excessive rates of applied N reduced specific gravity but rates sufficient for maximum yields were not deterimental.

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