Dataset Information

An Integrated Transcriptome and Proteome Analysis Reveals New Insights of Fruit Russeting Formation in ‘Golden Delicious’ Apple

ABSTRACT: Russeting of apple fruit is a non-invasive physiological disorder. It occurs mainly in 'Golden Delicious' apple and its hybrids, while understanding of its molecular mechanism is still limited. In this study, we used mRNA sequencing and an isobaric tag for relative and absolute quantitation-based quantitative (iTRAQ) proteomic analysis to detect changes in the expression levels of genes and proteins during russeting formation in russeted and non-russeted skin of 'Golden Delicious' apple. We set up three comparison groups representing the three developmental stages in the russeting formation process. With the formation of fruit russeting, there were 2856 differentially expressed genes and 942 differentially expressed proteins in the comparison groups as detected at the transcript level and protein level, respectively. A correlation analysis of the transcriptome and proteome data revealed related-genes involved in lignin biosynthesis are significant changes at different developmental stages during apple russeting formation. Some other transcription factors, such as MYBs, NACs and LIMs were also involved in apple russeting formation. In this study, one LIM transcription factor was preliminarily determined to be involved in lignin biosynthesis by combining to PAL-box element. Studying the identified genes and proteins will provide further insights into the molecular mechanisms controlling apple russeting formation.

INSTRUMENT(S): 6520A Quadrupole Time-of-Flight LC/MS

ORGANISM(S): Rosaceae

TISSUE(S): Fruit Body

SUBMITTER: Gao-peng Yuan

LAB HEAD: Pei-hua Cong

PROVIDER: PXD014960 | Pride | 2019-09-26

REPOSITORIES: Pride

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Publications

An Integrated Transcriptome and Proteome Analysis Reveals New Insights into Russeting of Bagging and Non-Bagging "Golden Delicious" Apple.

Yuan Gaopeng G Bian Shuxun S Han Xiaolei X He Shanshan S Liu Kai K Zhang Caixia C Cong Peihua P

International journal of molecular sciences 20190910 18

Apple skin russeting naturally occurs in many varieties, particularly in "Golden Delicious" and its pedigree, and is regarded as a non-invasive physiological disorder partly caused by excessive deposition of lignin. However, the understanding of its molecular mechanism is still limited. In this study, we used iTRAQ (isobaric tags for relative and absolute quantitation) and RNA-seq to detect the changes in the expression levels of genes and proteins in three developmental stages of russeting form ...[more]

PMID: 31510041

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Project description:Molecular events regulating apple fruit ripening and sensory quality are largely unknown. Such knowledge is essential for genomic-assisted apple breeding and postharvest quality management. In this study, a parallel transcriptome profile analysis, scanning electron microscopic (SEM) examination and systematic physiological characterization were performed on two apple cultivars, Honeycrisp (HC) and Cripps Pink (CP), which have distinct ripening features and texture attributes. Systematic physiological characterization of fruit ripening based on weekly maturity data indicated substantial differences in fruit crispness and firmness at comparable ripening stages. SEM images of fruit cortex tissues prepared from fruits with equivalent maturity suggested that the cell wall thickness may contribute to the observed phenotypes of fruit firmness and crispness. A high-density long-oligo apple microarray consisting of duplex 190,135 cross-hybridization-free 50-70-mer isothermal probes, and representing 23,997 UniGene clusters, was manufactured on a Nimblegen array platform. Transcriptome profiling identified a total of 1793 and 1209 UniGene clusters differentially expressed during ripening from cortex tissues of HC and CP, respectively. UniGenes implicated in hormone metabolism and response, cell wall biosynthesis and modification and those encoding transcription factors were among the prominent functional groups. Between the two cultivars, most of the identified UniGenes were similarly regulated during fruit ripening; however, a short list of gene families or specific family members exhibited distinct expression patterns between the two cultivars, which may represent candidate genes regulating cultivar-specific apple fruit ripening patterns and quality attributes. Using a single color labeling system, a total of 24 microarray slides were utilized, one for each cortex tissue sample, for transcriptome profiling analysis. 2 cultivars x 3 developmental stages x 4 biological replicates.

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	F18FTSNCKF2851_rep2.dat	Other
	F18FTSNCKF2851_rep3.dat	Other
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