scholarly journals Molecular Insights of Fruit Quality Traits in Peaches, Prunus persica

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2191
Author(s):  
Karpagam Veerappan ◽  
Sathishkumar Natarajan ◽  
Hoyong Chung ◽  
Junhyung Park
Keyword(s):  
Fruit Quality ◽  
Prunus Persica ◽  
Color Change ◽  
Quality Traits ◽  
Breeding Programs ◽  
Nutritional Values ◽  
Sweet Cherries ◽  
Softening Process ◽  
Molecular Aspects ◽  
Underlying Mechanisms

Fleshy fruits are the most demanded fruits because of their organoleptic qualities and nutritional values. The genus Prunus is a rich source of diversified stone/drupe fruits such as almonds, apricots, plums, sweet cherries, peaches, and nectarines. The fruit-ripening process in Prunus involves coordinated biochemical and physiological changes resulting in changes in fruit texture, aroma gain, color change in the pericarp, sugar/organic acid balance, fruit growth, and weight gain. There are different varieties of peaches with unique palatable qualities and gaining knowledge in the genetics behind these quality traits helps in seedling selection for breeding programs. In addition, peaches have shorter post-harvest life due to excessive softening, resulting in fruit quality reduction and market loss. Many studies have been executed to understand the softening process at the molecular level to find the genetic basis. To summarize, this review focused on the molecular aspects of peach fruit quality attributes and their related genetics to understand the underlying mechanisms.

QTL ANALYSIS OF FRUIT QUALITY TRAITS IN PEACH [PRUNUS PERSICA (L.) BATSCH] USING DENSE SNP MAPS

2015 ◽  
pp. 703-710 ◽  
Author(s):  
J.L. Zeballos ◽  
W. Abidi ◽  
R. Giménez ◽  
A.J. Monforte ◽  
M.A. Moreno ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Qtl Analysis ◽  
Prunus Persica ◽  
Quality Traits ◽  
Fruit Quality Traits

1-Methylcyclopropene treatment modifies postharvest behavior of Fantasia nectarines

2008 ◽  
Vol 88 (4) ◽  
pp. 753-758 ◽  
Author(s):  
Jennifer R DeEll ◽  
Dennis P Murr ◽  
Behrouz Ehsani-Moghaddam
Keyword(s):  
Fruit Quality ◽  
Prunus Persica ◽  
Color Change ◽  
Chilling Injury ◽  
Soluble Solids ◽  
Solids Concentration ◽  
Ethylene Action ◽  
Volatile Production ◽  
Soluble Solids Concentration

The effects of 1-methylcyclopropene (1-MCP), an inhibitor of ethylene action, on the ripening and quality of Fantasia nectarines were examined. Fruit were harvested from two commercial orchards and subsequently exposed to 1 μL L-1 of 1-MCP for 24 h at 0°C. Following treatment, fruit were held at 0°C for 0, 2, or 4 wk, and then assessed for quality during a ripening period at 23°C. 1-MCP treatment improved postharvest firmness retention in nectarines after 0 and 2 wk at 0°C plus 4 days at 23°C. Soluble solids concentration (SSC) was lower in nectarines treated with 1 MCP and held for 0 or 4 wk at 0°C, compared with similar non-treated fruit. The peel ground color change from green to yellow was also delayed by 1-MCP. Nectarines treated with 1-MCP exhibited less CO2 and hydrophobic volatile production during 14 days at 23°C, compared with non-treated fruit. The overall inhibition of fruit ripening by 1-MCP appears transitory in Fantasia nectarines. Chilling injury was observed after 4 wk of storage at 0°C and 1-MCP-treated fruit had less visual chilling-related injury but greater chilling-induced flesh hardening. Further research is needed to determine the effects of 1-MCP on different chilling injury symptoms in nectarines. Key words: 1-MCP, fruit quality, ripening, storage, shelf-life, Prunus persica

scholarly journals Breeding Trait Priorities of the Blueberry Industry in the United States and Canada

HortScience ◽  
2018 ◽  
Vol 53 (7) ◽  
pp. 1021-1028 ◽  
Author(s):  
R. Karina Gallardo ◽  
Qi Zhang ◽  
Michael Dossett ◽  
James J. Polashock ◽  
Cesar Rodriguez-Saona ◽  
...  
Keyword(s):  
Fruit Quality ◽  
The United States ◽  
Quality Traits ◽  
Relative Importance ◽  
Perennial Crop ◽  
Commodity Group ◽  
Breeding Programs ◽  
The North ◽  
Selection Strategies ◽  
Important Trait

Developing new blueberry cultivars requires plant breeders to be aware of current and emerging needs throughout the supply chain, from producer to consumer. Because breeding perennial crop plants (such as blueberry) is time- and resource-intensive, understanding and targeting priority traits is critical to enhancing the efficiency of breeding programs. This study assesses blueberry industry breeding priorities for fruit and plant quality traits based on a survey conducted at commodity group meetings across nine U.S. states and in British Columbia (Canada) between Nov. 2016 and Mar. 2017. In general, industry responses signaled that the most important trait cluster was fruit quality including the firmness, flavor, and shelf life. Fruit quality traits affect price premiums received by producers; influence consumer’s preferences; and have the potential to increase the feasibility of mechanical harvesting, all critical to the economic viability of the industry. There were differences across regions in the relative importance assigned to traits for disease resistance, arthropod resistance, and tolerance to abiotic stresses. Our findings will be useful to researchers seeking solutions for challenges to the North American blueberry industry including development of new cultivars with improved traits using accelerated DNA-based selection strategies.

scholarly journals Multi-Locus Genome-Wide Association Studies Reveal Fruit Quality Hotspots in Peach Genome

2021 ◽  
Vol 12 ◽  
Author(s):  
Cassia da Silva Linge ◽  
Lichun Cai ◽  
Wanfang Fu ◽  
John Clark ◽  
Margaret Worthington ◽  
...  
Keyword(s):  
Fruit Quality ◽  
The United States ◽  
Genome Wide Association ◽  
Genome Wide Association Studies ◽  
Quality Traits ◽  
Fresh Market ◽  
Breeding Programs ◽  
Genome Wide ◽  
Fruit Quality Traits ◽  
Peach Breeding

Peach is one of the most important fruit crops in the world, with the global annual production about 24.6 million tons. The United States is the fourth-largest producer after China, Spain, and Italy. Peach consumption has decreased over the last decade, most likely due to inconsistent quality of the fruit on the market. Thus, marker-assisted selection for fruit quality traits is highly desired in fresh market peach breeding programs and one of the major goals of the RosBREED project. The ability to use DNA information to select for desirable traits would enable peach breeders to efficiently plan crosses and select seedlings with desired quality traits early in the selection process before fruiting. Therefore, we assembled a multi-locus genome wide association study (GWAS) of 620 individuals from three public fresh market peach breeding programs (Arkansas, Texas, and South Carolina). The material was genotyped using 9K SNP array and the traits were phenotyped for three phenological (bloom date, ripening date, and days after bloom) and 11 fruit quality-related traits (blush, fruit diameter, fruit weight, adherence, fruit firmness, redness around pit, fruit texture, pit weight, soluble solid concentration, titratable acidity, and pH) over three seasons (2010, 2011, and 2012). Multi-locus association analyses, carried out using mrMLM 4.0 and FarmCPU R packages, revealed a total of 967 and 180 quantitative trait nucleotides (QTNs), respectively. Among the 88 consistently reliable QTNs detected using multiple multi-locus GWAS methods and/or at least two seasons, 44 were detected for the first time. Fruit quality hotspots were identified on chromosomes 1, 3, 4, 5, 6, and 8. Out of 566 candidate genes detected in the genomic regions harboring the QTN clusters, 435 were functionally annotated. Gene enrichment analyses revealed 68 different gene ontology (GO) terms associated with fruit quality traits. Data reported here advance our understanding of genetic mechanisms underlying important fruit quality traits and further support the development of DNA tools for breeding.

scholarly journals Late-maturity α-amylase (LMA): exploring the underlying mechanisms and end-use quality effects in wheat

Planta ◽  
2021 ◽  
Vol 255 (1) ◽  
Author(s):  
Ashley E. Cannon ◽  
Elliott J. Marston ◽  
Alecia M. Kiszonas ◽  
Amber L. Hauvermale ◽  
Deven R. See
Keyword(s):  
Wheat Breeding ◽  
Protein Accumulation ◽  
Comprehensive Overview ◽  
Breeding Programs ◽  
Future Directions ◽  
Open Questions ◽  
Late Maturity ◽  
End Use ◽  
Molecular Aspects ◽  
Underlying Mechanisms

Abstract Main conclusion A comprehensive understanding of LMA from the underlying molecular aspects to the end-use quality effects will greatly benefit the global wheat industry and those whose livelihoods depend upon it. Abstract Late-maturity α-amylase (LMA) leads to the expression and protein accumulation of high pI α-amylases during late grain development. This α-amylase is maintained through harvest and leads to an unacceptable low falling number (FN), the wheat industry’s standard measure for predicting end-use quality. Unfortunately, low FN leads to significant financial losses for growers. As a result, wheat researchers are working to understand and eliminate LMA from wheat breeding programs, with research aims that include unraveling the genetic, biochemical, and physiological mechanisms that lead to LMA expression. In addition, cereal chemists and quality scientists are working to determine if and how LMA-affected grain impacts end-use quality. This review is a comprehensive overview of studies focused on LMA and includes open questions and future directions.

scholarly journals Evaluation of Peach Cultivars in Cool, Mesic Ullensvang, Norway

2014 ◽  
Vol 24 (5) ◽  
pp. 618-622
Author(s):  
Mekjell Meland ◽  
Oddmund Frøynes ◽  
Clive Kaiser
Keyword(s):  
Fruit Quality ◽  
Prunus Persica ◽  
Commercial Production ◽  
Home Gardens ◽  
Breeding Programs ◽  
Northern European ◽  
Early Maturing ◽  
Leaf Curl

In a cool, maritime Nordic climate, where fruit have been grown for many centuries, 13 early maturing peach (Prunus persica) cultivars from northern European climates were evaluated over a 6-year period. Peach leaf curl (Taphrina deformans) was the main disease affecting production. The most consistent yielding cultivar was Riga with 5.74 kg/tree in 2009, 2.06 kg/tree in 2010, and 4.71 kg/tree in 2011. Harnas yielded 6.93 kg/tree in 2010, but had very low yields in 2009 and no yield at all in 2011. ‘Harnas’ fruit quality was excellent when compared with all other cultivars, but trees were extremely susceptible to peach leaf curl. ‘Riga’ was somewhat tolerant of peach leaf curl but flowered early. We conclude that none of the cultivars tested are suitable for commercial production. However, looking forward, both ‘Riga’ and ‘Harnas’ may be suitable for commercial tunnel production and home gardens. Furthermore, ‘Harnas’ and ‘Riga’ could be considered for use in future breeding programs for this cool, mesic Nordic climate.

scholarly journals Heritability, Correlation, and Genotype by Environment Interaction of Phenological and Fruit Quality Traits in Peach

2021 ◽  
Vol 146 (1) ◽  
pp. 56-67
Author(s):  
Zena Rawandoozi ◽  
Timothy Hartmann ◽  
David Byrne ◽  
Silvia Carpenedo
Keyword(s):  
Fruit Quality ◽  
Prunus Persica ◽  
Major Gene ◽  
Genotype By Environment Interaction ◽  
Soluble Solids ◽  
Environment Interaction ◽  
Quality Traits ◽  
Narrow Sense Heritability ◽  
Genotype By Environment ◽  
Fruit Quality Traits

Ten phenological and fruit quality traits were evaluated in seedlings from nine F1 low to medium chill full-sib peach (Prunus persica) families and their parents over 2 years at two locations (Fowler, CA, and College Station, TX) to estimate variance components, genotype by environment interaction (G×E), and phenotypic correlations using restricted maximum likelihood mixed and multivariate models. The removal of nectarine [P. persica var. nucipersica (fruit without fuzz)] and pantao (flat shape fruit) seedlings from the analysis decreased the heritability for the fruit size, blush, tip, and soluble solids concentration (SSC), indicating the importance of taking the effects of the major gene of nectarine/pantao into account when assessing the heritability of traits. A strong correlation coefficient (r = 0.92) found between ripe date (RD) and fruit development period (FDP) and between fruit weight (FW) and fruit diameter (FD), indicates that either measure is equally effective, although the negative correlation between bloom date (BD) and FDP (r = −0.46) implies earlier blooming during cool temperatures tends to extend FDP. FW, FD, blush, and SSC had moderately weak correlations with RD (r = 0.56, 0.53, −0.41, and 0.48) and FDP (r = 0.57, 0.56, −0.50, and 0.39, respectively), which could be explained either by the presence of a strong link between quantitative trait loci of these traits and the ripening date locus or the pleiotropic effect of ripening date on many quantitative fruit characters. The traits RD, FDP, and titratable acidity (TA) had the highest broad-sense heritability (H2) and lowest G×E. FW, tip, and shape showed the lowest H2, the highest of G×E variance to the genetic F (G×E variance/total genotypic variance), and high G×E, whereas the other traits showed moderate G×E. For the traits that had a higher G×E interaction, selection for or against these traits should be done at the production location. A moderate narrow-sense heritability (h2) was estimated for BD, blush, fruit tip, and shape. FW and FD showed low to moderate h2 while H2 was high, whereas RD, FDP, SSC, and TA showed low h2 and high H2 estimates, indicating important nonadditive effects for these traits.

scholarly journals Interrelations between productive, vegetative, and fruit quality traits in Tahiti acid lime through Bayesian inference

2022 ◽  
Vol 52 (5) ◽  
Author(s):  
Renan Garcia Malikouski ◽  
Emanuel Ferrari do Nascimento ◽  
Andréia Lopes de Morais ◽  
Marco Antônio Peixoto ◽  
Moises Zucoloto ◽  
...  
Keyword(s):  
Bayesian Inference ◽  
Fruit Quality ◽  
Deviance Information Criterion ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Quality Traits ◽  
Breeding Programs ◽  
Canopy Volume ◽  
Fruit Quality Traits ◽  
Acid Lime

ABSTRACT: Although the fruit yield has a core importance in Tahiti acid lime breeding programs, other traits stand out among the quality fruit and vegetative traits as ones that still need to be improved in selection of superior genotypes. Appling efficient tools aiming selection, such as the Bayesian inference, becomes an alternative in perennial crops. This study applied Bayesian inference in the genetic evaluation of Tahiti acid lime genotypes and estimated the interrelation between vegetative, productive and fruit quality traits. Twenty-four acid lime genotypes were evaluated for number of fruits, fruit yield, canopy volume, stem diameter, soluble solids content, shell thickness, and juice yield traits. The genotypic values were estimated through Bayesian inference and models with different residual structure were tested via deviance information criterion. Pearson’s correlation and the path analysis were estimated, removing the multicollinearity effect. The Bayesian inference estimates genotypic values with high selective accuracy. The correlations obtained between traits from different groups can be useful in selection strategies for improvement of Tahiti acid lime. The Bayesian inference demonstrated to be an important tool and should be considered in perennial breeding programs.

scholarly journals Stability of Fruit Quality Traits of Different Strawberry Varieties under Variable Environmental Conditions

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1242
Author(s):  
Lucía Cervantes ◽  
María Teresa Ariza ◽  
Luis Miranda ◽  
David Lozano ◽  
Juan Jesús Medina ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Quality Parameters ◽  
Quality Traits ◽  
Breeding Programs ◽  
Functional Quality ◽  
Cropping Season ◽  
Fruit Quality Traits ◽  
Varying Environments ◽  
Cropping Seasons ◽  
Organoleptic Parameters

Strawberry fruit quality traits can be affected by genotype–environment interactions, determining the final consumer acceptance of fruits. Trait stability under varying environments is necessary to ensure the fruit quality of strawberries selected by breeding programs. Hence, inter- and intra-annual variation of organoleptic and functional fruit quality parameters of five strawberry varieties throughout four consecutive cropping seasons was analyzed to assess their relative stability. In most varieties, organoleptic parameters showed higher inter-annual stability but greater variability throughout the season, while the reverse was true for the functional quality parameters. Relative humidity and mean and minimum temperatures partially accounted for fruit quality variation but other factors along with the genotype may also have an influence. Among the varieties, ‘Splendor’ displayed greater year-on-year stability in organoleptic parameters, and ‘Sabrina’ and Candonga® showed higher inter- and intra-annual stability on functional fruit quality, respectively. Environmental variation did not affect fruit quality parameters similarly in all strawberry varieties. In ‘Sabrina’ and Candonga® antioxidant capacity (TEAC) was greater and stable throughout the cropping season, underlining TEAC as a tool for varietal selection, and suggesting these two varieties as parents for breeding programs that seek healthy features and high-quality fruits that meet consumer demands.

scholarly journals Mapping QTLs associated with fruit quality traits in peach [Prunus persica (L.) Batsch] using SNP maps

2016 ◽  
Vol 12 (3) ◽  
Author(s):  
José Luis Zeballos ◽  
Walid Abidi ◽  
Rosa Giménez ◽  
Antonio J. Monforte ◽  
María Ángeles Moreno ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Prunus Persica ◽  
Quality Traits ◽  
Fruit Quality Traits
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