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109 results for “peach”
MADS2 regulates priming defence in postharvest peach through combined salicylic acid and abscisic acid signaling
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Tea seed meal application promoted microbial community diversity in the soil of peach orchard
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Identification and characterization of QTLs for fruit quality traits in peach through a multi-family approach
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Data from: Does parasitoid pressure elicit defensive polyphenism in the green peach aphid?
<p>Aphids are capable of adapting to parasitoid pressure in the absence of sexual reproduction using epigenetically controlled polyphenism. Asexual lineages of aphids could thus become resistant to parasitoids over time and with repeated exposure, hampering biocontrol efforts that rely on parasitoid wasps. Prior to this study, wing polyphenism and reproductive polyphenism had been reported as parasitoid-adaptive responses in asexual lineages of at least two species of aphids, but it remained unclear whether parasitoid exposure could induce other defensive polyphenisms. Using a rigorous, replicated experimental evolution design, we aimed to induce adaptive polyphenisms in the green peach aphid, <i>Myzus persicae </i>Sulzer, through serial exposures of single asexual lines to the parasitoid <i>Aphidius colemani </i>Viereck over four consecutive generations. We attempted to measure changes in parasitoid susceptibility, reproductive schedule, body size, and production of pink or alate offspring compared to aphid control lines not exposed to parasitoids. Despite this consistently strong selective parasitoid pressure, there was no evidence that asexual lineages of <i>M. persicae </i>adapt to parasitoid pressure using adaptive polyphenism. Our data indicate that pseudo-crowding stress – where aphids disturbed by parasitoids or predators wander within a colony, increasing aphid-to-aphid contact and creating the illusion of a more crowded environment – may be necessary for <i>M. persicae </i>to produce defensive polyphenisms in response to parasitoid attack.</p>
Data from: A genome-wide analysis of MADS-box genes in peach [Prunus persica (L.) Batsch]
BACKGROUND: MADS-box genes encode a family of eukaryotic transcription factors distinguished by the presence of a highly-conserved ~58 amino acid DNA-binding and dimerization domain (the MADS-box). The central role played by MADS-box genes in peach endodormancy regulation led us to examine this large gene family in more detail. We identified the locations and sequences of 79 MADS-box genes in peach, separated them into established subfamilies, and broadly surveyed their tissue-specific and dormancy-induced expression patterns using next-generation sequencing. We then focused on the dormancy-related SVP/AGL24 and FLC subfamilies, comparing their numbers and phylogenetic relationships with those of other sequenced woody perennial genomes. RESULTS: We identified 79 MADS-box genes distributed across all eight peach chromosomes and frequently located in clusters of two or more genes. They encode proteins with a mean length of 248 ± 72 amino acids and include representatives from most of the thirteen Type II (MIKC) subfamilies, as well as members of the Type I Mα, Mβ, and Mγ subfamilies. Most Type I genes were present in species-specific monophyletic lineages, and their expression in the peach sporophyte was low or absent. Most Type II genes had Arabidopsis orthologs and were expressed at much higher levels throughout vegetative and fruit tissues. During short-day-induced growth cessation, seven Type II genes from the SVP/AGL24, AGL17, and SEP subfamilies showed significant changes in expression. Phylogenetic analyses indicated that multiple, independent expansions have taken place within the SVP/AGL24 andFLC lineages in woody perennial species. CONCLUSIONS: Most Type I genes appear to have arisen through tandem duplications after the divergence of the Arabidopsis and peach lineages, whereas Type II genes appear to have increased following whole genome duplication events. An exception to the latter rule occurs in the FLC and SVP/AGL24 Type II subfamilies, in which species-specific tandem duplicates have been retained in a number of perennial species. These subfamilies comprise part of a genetic toolkit that regulates endodormancy transitions, but phylogenetic and expression data suggest that individual orthologs may not function identically across all species.
Figure 2 in Optimizing in vitro factors for improvement of shoot proliferation of 'Flordaguard' peach rootstock
Figure 2. Shoot proliferation from node explant of 'Flordaguard' peach rootstock. A. Shoot cultured in half strength MS (½N); B. full strength MS medium; C. Induction of multiple shoots in full strength MS supplemented with 0.5 mg L-1 of BAP; D. induction of multiple shoots in half strength MS (½N) supplemented with 0.5 mg L-1 of BAP.
Figure 1 in Optimizing in vitro factors for improvement of shoot proliferation of 'Flordaguard' peach rootstock
Figure 1. Order of the factors tested for improvement in the in vitro multiplication of 'Flordaguard' peach rootstock. I. Salt medium composition in 4 mg L-1 BAP; II. Salt medium composition in 0.5 mg L-1 BAP; III. Culture medium consistency; IV. Explant type and position; and V. Explant growth in half strength MS medium with different BAP doses.
Data from: Comparison of the genetic determinism of two key phenological traits, flowering and maturity dates, in three Prunus species: peach, apricot and sweet cherry
The present study investigates the genetic determinism of flowering and maturity dates, two traits highly affected by global climate change. Flowering and maturity dates were evaluated on five progenies from three Prunus species, peach, apricot and sweet cherry, during three to eight years. Quantitative trait locus (QTL) detection was performed separately for each year and also by integrating data from all years together. High heritability estimates were obtained for flowering and maturity dates. Several QTLs for flowering and maturity dates were highly stable, detected each year of evaluation, suggesting that they were not affected by climatic variations. For flowering date, major QTLs were detected on linkage groups (LG) 4 for apricot and sweet cherry and on LG6 for peach. QTLs were identified on LG2, LG3, LG4 and LG7 for the three species. For maturity date, a major QTL was detected on LG4 in the three species. Using the peach genome sequence data, candidate genes underlying the major QTLs on LG4 and LG6 were investigated and key genes were identified. Our results provide a basis for the identification of genes involved in flowering and maturity dates that could be used to develop cultivar ideotypes adapted to future climatic conditions.
Fungicide Exposure Assessment Among Apple and Peach Farmers in the Argicultural Health Study
ClinicalTrials.gov study NCT00342394. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Open -Label,Cross Over Trail Evaluating the Glycemic Impact of Peach Varieties in Healthy Adullts
ClinicalTrials.gov study NCT07015788. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Physical Exercise for Augmenting Cognitive Health (PEACH)
ClinicalTrials.gov study NCT04922710. IPD Sharing: YES. Countries: 2. Publications: 0.
Data from: Does parasitoid pressure elicit defensive polyphenism in the green peach aphid?
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Data from: A genome-wide analysis of MADS-box genes in peach [Prunus persica (L.) Batsch]
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Data from: TNL genes in peach: insights into the post-LRR domain
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Data from: Comparison of the genetic determinism of two key phenological traits, flowering and maturity dates, in three Prunus species: peach, apricot and sweet cherry
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Peach flower bud development
GEO Series GSE247681. Prunus persica. 18 samples. Type: Expression profiling by high throughput sequencing.
A microarray approach to identify genes involved in seed and mesocarp development in peach
GEO Series GSE22582. Prunus persica. 4 samples. Type: Expression profiling by array.
Chromatin and transcription dynamics regulate flower development during chilling accumulation in peach buds
GEO Series GSE189882. Prunus persica. 8 samples. Type: Expression profiling by high throughput sequencing.
Involvement of different plant viruses in the activation of RNA silencing-related genes and the defensive response against Plum pox virus of ‘GF305’ peach (Prunus persica) grafted with ‘Garrigues’ alm
GEO Series GSE188935. Prunus dulcis; Prunus persica. 7 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Arabidopsis thaliana gene expression changes upon treatment with green peach aphid saliva
GEO Series GSE16497. Arabidopsis thaliana. 6 samples. Type: Expression profiling by array.
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