Botany and taxonomy.

Bassi, D.; Monet, R.; Layne, Desmond R.

doi:10.1079/9781845933869.0001

Cited by 55 publications

(45 citation statements)

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“…Flesh texture, highly dependent on the physico‐chemical properties of the fruit cell walls, is an important determinant of fruit quality (Bassi and Monet ). Typical of fruit ripening is softening, mainly ascribable to the dissolution of the middle‐lamellar pectic polysaccharides involved in cell adhesion.…”

Section: Introductionmentioning

confidence: 99%

Cinnamyl alcohol dehydrogenases in the mesocarp of ripening fruit of Prunus persica genotypes with different flesh characteristics: changes in activity and protein and transcript levels

Gabotti

Negrini

Morgutti

et al. 2015

Physiologia Plantarum

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Development of fruit flesh texture quality traits may involve the metabolism of phenolic compounds. This study presents molecular and biochemical results on the possible role played by cinnamyl alcohol dehydrogenase (CAD; EC 1.1.1.195) during ripening [S3, S4 I (pre-climacteric) and S4 III (climacteric) stages] of peach [Prunus persica (L.) Batsch] fruit with different flesh firmness [non-melting flesh (NMF) 'Oro A'/melting flesh (MF) 'Springcrest' and 'Sanguinella'] and color (blood-flesh Sanguinella). A total of 24 putative full-length PRUPE_CAD genes were identified (in silico analysis) in the peach genome. The most abundant CAD isoforms, encoded by genes located on scaffolds 8 and 6, were probed by specifically developed anti-PRUPE_CAD sc8 and by anti-FaCAD (PRUPE_CAD sc6) polyclonal antibodies, respectively. PRUPE_CAD sc8 proteins (SDS-PAGE and native-PAGE/western blot) appeared responsible for the CAD activity (in vitro/in-gel assays) that increased with ripening (parallel to PRUPE_ACO1 transcripts accumulation and ethylene evolution) only in the mesocarp of Oro A and blood-flesh Sanguinella. Accumulation of PRUPE_CAD sc8 transcripts (semi-quantitative RT-PCR) occurred in all three cultivars, but in Oro A and Springcrest it was not always accompanied by that of the related proteins, suggesting possible post-transcriptional regulation. Flesh firmness, as well as levels of lignin, total phenolics and, where present (Sanguinella), anthocyanins, declined with ripening, suggesting that, at least in the studied peach cultivars, CAD activity is related to neither lignification nor differences in flesh firmness (NMF/MF). Further studies are necessary to clarify whether the high levels of CAD activity/expression in Sanguinella play a role in determining the characteristics of this blood-flesh fruit.

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Section: Introductionmentioning

confidence: 99%

Cinnamyl alcohol dehydrogenases in the mesocarp of ripening fruit of Prunus persica genotypes with different flesh characteristics: changes in activity and protein and transcript levels

Gabotti

Negrini

Morgutti

et al. 2015

Physiologia Plantarum

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“…Other traits not typically associated with domestication, such as precocity, adventitious rooting, graft compatibility, or tree architecture, may also have been selected during domestication or subsequent breeding (reviewed in Miller and Gross 2011; Spiegel-Roy 1986). Efforts to identify the wild progenitors of either almond or peach by examining species relationships within subgenus Amygdalus have produced inconsistent species trees and numerous polytomies (Mowrey et al 1990; Browicz and Zohary 1996; Ladizinsky 1999; Aradhya et al 2004; Bassi and Monet 2008; Zeinalabedini et al 2010; Verde et al 2013). Given uncertainty in the wild progenitors and the difficulties associated with long generation times, QTL-mapping approaches to investigate peach or almond domestication are thus impractical.…”

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confidence: 99%

Evolutionary Genomics of Peach and Almond Domestication

Velasco

Hough

Aradhya

et al. 2016

G3 Genes|Genomes|Genetics

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The domesticated almond [Prunus dulcis (L.) Batsch] and peach [P. persica (Mill.) D. A. Webb] originated on opposite sides of Asia and were independently domesticated ∼5000 yr ago. While interfertile, they possess alternate mating systems and differ in a number of morphological and physiological traits. Here, we evaluated patterns of genome-wide diversity in both almond and peach to better understand the impacts of mating system, adaptation, and domestication on the evolution of these taxa. Almond has around seven times the genetic diversity of peach, and high genome-wide FST values support their status as separate species. We estimated a divergence time of ∼8 MYA (million years ago), coinciding with an active period of uplift in the northeast Tibetan Plateau and subsequent Asian climate change. We see no evidence of a bottleneck during domestication of either species, but identify a number of regions showing signatures of selection during domestication and a significant overlap in candidate regions between peach and almond. While we expected gene expression in fruit to overlap with candidate selected regions, instead we find enrichment for loci highly differentiated between the species, consistent with recent fossil evidence suggesting fruit divergence long preceded domestication. Taken together, this study tells us how closely related tree species evolve and are domesticated, the impact of these events on their genomes, and the utility of genomic information for long-lived species. Further exploration of this data will contribute to the genetic knowledge of these species and provide information regarding targets of selection for breeding application, and further the understanding of evolution in these species.

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“…The fruit is a large drupe with a thin epidermis, a pulpy mesocarp, and a woody endocarp containing the seed, more or less globose, with a longitudinal groove and a cavity around the peduncle. Ordinarily, the skin of most ripe peaches is downy or fuzzy; however, the nectarines are a class of peaches with smooth skins [33].…”

Section: Botany and Susceptibility Of Peaches To Infection By Monilinmentioning

confidence: 99%

“…Peach trees under commercial cultivation ( Figure 2) are usually kept between three and four meters [33]. Peach trees are self-pollinating and have an impressive blossoming.…”

Section: Botany and Susceptibility Of Peaches To Infection By Monilinmentioning

confidence: 99%

Peach Brown Rot: Still in Search of an Ideal Management Option

2018

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Abstract:The peach is one of the most important global tree crops within the economically important Rosaceae family. The crop is threatened by numerous pests and diseases, especially fungal pathogens, in the field, in transit, and in the store. More than 50% of the global post-harvest loss has been ascribed to brown rot disease, especially in peach late-ripening varieties. In recent years, the disease has been so manifest in the orchards that some stone fruits were abandoned before harvest. In Spain, particularly, the disease has been associated with well over 60% of fruit loss after harvest. The most common management options available for the control of this disease involve agronomical, chemical, biological, and physical approaches. However, the effects of biochemical fungicides (biological and conventional fungicides), on the environment, human health, and strain fungicide resistance, tend to revise these control strategies. This review aims to comprehensively compile the information currently available on the species of the fungus Monilinia, which causes brown rot in peach, and the available options to control the disease. The breeding for brown rot-resistant varieties remains an ideal management option for brown rot disease control, considering the uniqueness of its sustainability in the chain of crop production.

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Botany and taxonomy.

Cited by 55 publications

References 0 publications

Cinnamyl alcohol dehydrogenases in the mesocarp of ripening fruit of Prunus persica genotypes with different flesh characteristics: changes in activity and protein and transcript levels

Cinnamyl alcohol dehydrogenases in the mesocarp of ripening fruit of Prunus persica genotypes with different flesh characteristics: changes in activity and protein and transcript levels

Evolutionary Genomics of Peach and Almond Domestication

Peach Brown Rot: Still in Search of an Ideal Management Option

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