Tuber Dormancy Lasting Eight Years in the Wild Potato Solanum jamesii

2010 ◽  
Vol 87 (2) ◽  
pp. 226-228 ◽  
Author(s):  
John B. Bamberg
Keyword(s):  
Wild Potato ◽  
Tuber Dormancy ◽  
In The Wild ◽  
Solanum Jamesii

Making Hybrids with the Wild Potato Solanum jamesii

2021 ◽  
Author(s):  
John Bamberg ◽  
Abraham Kielar ◽  
Alfonso del Rio ◽  
David Douches
Keyword(s):  
Wild Potato ◽  
Solanum Jamesii

scholarly journals Recognition of Phytophthora infestans in potato (Solanum tuberosum L.): Scr74 gene as an example

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Mulusew Kassa Bitew ◽  
Emmanouil Domazakis
Keyword(s):  
Amino Acid ◽  
Phytophthora Infestans ◽  
Solanum Tuberosum L ◽  
Effector Proteins ◽  
Wild Potato ◽  
Detached Leaf ◽  
Polymorphic Genes ◽  
Cysteine Rich Protein ◽  
In The Wild ◽  
Polymorphic Gene

AbstractPhytophthora infestans is the causal agent of late blight, the most devastating disease of potato worldwide. The P. infestans genome encodes potentially polymorphic genes that evolve continually to evade the recognition of plant R genes, though it has hundreds of predicted and conserved effector proteins recognised by the plant. The gene Scr74 encodes a predicted 74-amino acid secreted cysteine-rich protein belonging to a highly polymorphic gene family within P. infestans. This study screened the recognition of Scr74 genes in wild potato genotypes from August 2013 to January 2014 in the Plant Breeding Laboratory of Wageningen University, the Netherlands. To identify the recognition of the Scr74 gene, we grew potato genotypes in the green house for PVX assays, detached leaf assays and molecular work. Twenty-seven good-quality sequences of the Scr74 gene variant with a length of 74 amino acids were found and more frequent amino acid variation was detected on the mature protein. Seventeen Scr74 constructs were identified as diversified and two effectors were strongly recognised by wild S. verrucosum genotypes via effectoromics from the PVX assay. A strong plant cell death hypersensitive response (HR) was recorded on wild S. verrucosum and S. tuberosum genotypes from the detached leaf assay. This recognition seems to be a useful indicator for the presence of a resistance gene (s) to the polymorphic effectors of P. infestans (as it has seen on Scr74 gene) in the wild potato genotypes.

Cytological mechanisms of 2n pollen formation in the wild potato Solanum okadae and pollen-pistil relations with the cultivated potato, Solanum tuberosum

2007 ◽  
Vol 55 (3) ◽  
pp. 471-477 ◽  
Author(s):  
Elsa Lucila Camadro ◽  
Sandra Karina Saffarano ◽  
Juan Carlos Espinillo ◽  
Mateo Castro ◽  
Phillip W. Simon
Keyword(s):  
Solanum Tuberosum ◽  
Wild Potato ◽  
2N Pollen ◽  
Cultivated Potato ◽  
In The Wild ◽  
Pollen Formation

scholarly journals Physiology of tuber dormancy and its mechanism of release in potato

2021 ◽  
pp. 13-21
Author(s):  
Muhammad Wasim Haider ◽  
Muhammad Nafees ◽  
Muhammad Amin ◽  
Habat Ullah Asad ◽  
Ishtiaq Ahmad
Keyword(s):  
Soluble Sugars ◽  
Time Frame ◽  
Physiological Age ◽  
Tuber Initiation ◽  
Dormancy Breaking ◽  
Tuber Dormancy ◽  
Wild Potato Species ◽  
Preparation Phase ◽  
Solanum Jamesii ◽  
Pre Treatment

The tuber dormancy is an important aspect of tuber’s physiological age and begins with tuber initiation. It is largely dependent on genotype, environmental conditions, and tuber age. The group Phureja among diploid potatoes, has a very short or no tuber dormancy while the tubers of Solanum jamesii, a wild potato species, may remain dormant for more than eight years and have the tendency to sprout in favourable conditions. The dormancy breakage in potato is accompanied by many physiological changes such as changes in the ratios of abscisic acid (ABA)/ cytokinin and ABA/ gibberellic acid (GA3), catalase inhibition and accumulation of soluble sugars. These all changes are interlinked and occur in the same time frame. The dormant buds have 77% of their nuclei in the growth phase (G1), compared to only 13% in the preparation phase for mitosis (G2), resulting in slower development of active buds. This paper reviews various factors involved in natural and forced dormancy breakage of potato tuber in relation to their use as seed potatoes immediately after harvesting and implementation of different exogenous dormancy breaking methods like cold pre-treatment, growth regulators, electric current and irradiation to induce sprouting in potatoes.

scholarly journals Solanum jamesii as a Food Crop: History and Current Status of a Unique Potato

2021 ◽  
Author(s):  
David Kinder ◽  
John Bamberg ◽  
Lisbeth Louderback ◽  
Bruce Pavlik ◽  
Alfonso Del Rio
Keyword(s):  
Native Americans ◽  
Food Source ◽  
Current Status ◽  
Wild Potato ◽  
Food Crop ◽  
Wild Potato Species ◽  
Ample Evidence ◽  
Crop History ◽  
Solanum Jamesii ◽  
Food Needs

Solanum jamesii is a wild potato found in the US southwest. There is ample evidence that this potato was used by ancestral Puebloans as a food source, where some researchers think it was used as a starvation food while others consider it to be regular food source. Currently this potato is being grown by Native Americans, notably the Navajo, as a specialty food as well as a food crop. There are several attributes to this potato that make it especially suitable for development as our climate changes and food needs become more demanding, including its drought tolerance and ability to be crossed with other wild potato species and cultivars.

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