Meta-Analysis of Genetic Factors for Potato Starch Phosphorylation

Abstract

Starch is one of the most demanded renewable feedstock in the world. The degree of phosphorylation of native potato (Solanum tuberosum L.) starch is a practically important quantitative trait, significantly influencing its physical and chemical properties. In this study, we evaluated the genetic diversity of the population of potato varieties and quantified phosphorus content in potato tuber starch harvested in 2017, 2018, and 2019. With the statistical methods, the most promising varieties for the next generation of breeding were identified for the first time. Genotyping and chemotyping data were utilized for genome-wide associations study (GWAS) in order to reveal genetic factors underlying the trait. GWAS based on a general linear model (GLM) with principal component analysis (PCA) was performed. The approach allowed us to identify two new, and confirm two previously found, significant SNPs on chromosome 5 associated with phosphorus content in starch. A search for the protein products coded in the genome regions carrying the significant SNPs revealed a cluster of genes that code glycoside and protein kinases, thus forming an operon-like structure. The genetic markers can be used for marker-assisted selection or to be considered as potential targets for genome editing to improve the industrially important properties of potato native starch via “intravital modification”.

Microencapsulation of Propolis and Honey Using Mixtures of Maltodextrin/Tara Gum and Modified Native Potato Starch/Tara Gum

“…Tara gum (Caesalpinia spinosa) is a galactomannan used as a wall material obtained by drying and has a chain made up of β-D-mannose units [13,14]. Native potato starches are used in the food industry because of their advantages in gel formation and low retrogradation [14,15]. From native starch, octenyl succinylated starch can be obtained, frequently used as an encapsulating agent in food and pharmaceutical products [16].…”

Microencapsulation of Erythrocytes Extracted from Cavia porcellus Blood in Matrices of Tara Gum and Native Potato Starch

“…They also contribute to the economic income of the families that are dedicated to their breeding, although their consumption is not yet widespread throughout the world [ 23 , 24 , 25 ], Tara gum is a galactomannan, which is a neutral reserve polysaccharide extracted from the endosperm of the seed of the Caesalpinia spinosa tree; it is characterized by possessing the main chain of β-D-mannose units with glycosidic bonds [ 26 ], Native potato starch ( Solanum tuberosum spp. Andígena ) is a derivative used at industrial and domestic levels due to its gelatinization properties and low tendency to retrograde [ 27 ].…”

Multidimensional assessment of yield and quality of starchy potato cultivars

“…Taking into account all of these characteristics may be the basis of drawing adequate conclusions as to the cultivars' value for cultivation and use. There are few studies evaluating potato cultivars and they assess the quality of starch obtained from the cultivars [Pycia et al 2012, Phogat et al 2020, Khlestkin et al 2019, Vasilyev et al 2021, Khlestkin et al 2022]. The analysis reported in the present work will fill this gap, and the findings can be used by both cultivar breeders and starchy potato growers who search for cultivars with superior attributes which will provide high levels of quality yields conditioning economic effectiveness.…”