Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
27
datasets available to search
ShareScore release 0.9.0
Dataset results
27 results for “Malus domestica”
Genetic mechanisms associated with floral initiation and the repressive effect of fruit on flowering in apple (Malus x domestica Borkh)
<p>Many apple cultivars are subject to biennial fluctuations in flowering and fruiting. It is believed that this phenomenon is caused by a repressive effect of developing fruit on the initiation of flowers in the apex of proximal bourse shoots. However, the genetic pathways of floral initiation are incompletely described in apple, and the biological nature of floral repession by fruit is currently unknown. In this study, we characterize the transcriptional landscape of bourse shoot apices in the biennial cultivar, 'Honeycrisp', during the period of floral initiation, in trees bearing a high fruit load and in trees without fruit. Trees with high fruit load produced almost exclusively vegetative growth in the subsequent year, whereas the trees without fruit produced flowers on the majority of the potential flowering nodes. Using RNA-based sequence data, we documented gene expression at high resolution, identifying >11,000 transcripts that had not been previously annotated, and characterized expression profiles associated with vegetative growth and flowering. We also conducted a census of genes related to known flowering genes, organized the phylogenetic and syntenic relationships of these genes, and compared expression among homologs. Several genes closely related to <em>AP1, FT, FUL, LFY, </em>and <em>SPLS </em>were more strongly expressed in apices from non-bearing, floral-determined trees, consistent with their presumed floral-promotive roles. In contast, a homolog of <em>TFL1 </em>exhibited strong and persistent up-regulation only in apices from bearing, vegetative-determined trees, suggesting a roles in floral repression. Additionally, we identified four <em>GIBBERELLIC ACID (GA) 2 OXIDASE </em>genes that were expressed to relatively high levels in apices from bearing trees. These results define the flowering-related transcriptional landscape in apple, and strongly support previous studies implicating both gibberellins and <em>TFL1 </em>as key components in repression of flowering by fruit. </p>
Morphological and olfactory tree traits influence the susceptibility and suitability of the apple species Malus domestica and M. sylvestris to Anthonomus pomorum
<p><span>The florivorous apple blossom weevil, <em>Anthonomus pomorum</em> (Coleoptera: Curculionidae), is the most economically relevant insect pest of European apple orchards in early spring. Neither efficient monitoring nor ecologically sustainable management of this insect pest has yet been implemented. To identify heritable traits of apple trees that might influence host selection of <em>A. pomorum</em>, we compared susceptibility of apple tree species using infestation rates of the domesticated apple, <em>Malus domestica</em> (Rosaceae: Pyreae), and the European crab apple, <em>M. sylvestris</em>. We evaluated the suitability of the two apple species for <em>A. pomorum</em> by quantifying the mass of weevil offspring. Because volatile organic compounds (VOCs) emitted from flower buds of domesticated apple have previously been suggested to mediate female weevil preference via olfactory cues, we conducted bioassay experiments with blossom buds of both apple species to explore the olfactory preference of adult weevils and, furthermore, identified the headspace VOCs of blossom buds of both apple species through GC-MS analysis. The infestation analysis showed that<em> A. pomorum</em> infested the native European crab apple stronger than the domesticated apple, which originated from Central Asia. The European crab apple also appeared to be better suited for weevil larval development than the domesticated apple, as weevils emerging from <em>M. sylvestris</em> had a higher body mass than those emerging from <em>M. domestica</em>. These field observations were supported by olfactory bioassays, which showed that <em>A. pomorum</em> significantly preferred the odor of <em>M. sylvestris</em> buds compared to the odor of <em>M. domestica</em> buds. The analysis of headspace VOCs indicated differences in the blossom bud volatiles separating several <em>M. domestica</em> individuals from <em>M. sylvestris</em> individuals. This knowledge might be employed in further studies to repel <em>A. pomorum</em> from <em>M. domestica</em> blossom buds.</span></p> <p> </p>
Genetic mechanisms associated with floral initiation and the repressive effect of fruit on flowering in apple (Malus x domestica Borkh)
Open the record for dataset details and reuse information.
Morphological and olfactory tree traits influence the susceptibility and suitability of the apple species Malus domestica and M. sylvestris to Anthonomus pomorum
Open the record for dataset details and reuse information.
Data from: Sylleptic branching in winter-headed apple (Malus × domestica) trees: accession-dependent responses and their relationships with other tree architectural characteristics
Well-feathered apple trees are essential for commercial orchards to optimize yields. However, most cultivars do not form these sylleptic branches readily in commercial nurseries due to high apical dominance. Several treatments exist to promote their formation in the nurseries, one of which is heading. However, not all cultivars are expected to react similarly to these treatments. We studied the branching response of 155 genotypes following heading and its relation to other architectural traits as a function of the cultivar's genetic background. Trees were grown for two consecutive years after grafting in a nursery, and the main axes were headed in the winter following growth in year 1. After heading, a single shoot was retained when growth resumed in the second year. Plant architectural traits such as growth of the main shoot, internode length, sylleptic branching, etc. were measured before and after heading and were statistically compared using a mixed model. This model showed the effect of heading for all architectural traits studied. In addition significant genotype and genotype × treatment interactions were found. In general, genotypes that showed a more vigorous growth during the first year also reacted more vigorously to heading. Accounting for the genetic substructure of this collection, no clear distinction in tree response could be found except in a small group of individuals that belonged to an F1 mapping population. This study shows that heading is not favorable for all genotypes to promote sufficient sylleptic branching and that other methods are needed to promote branching in these accessions.
Genotype by sequencing SNP dataset for Malus domestica x Malus sieversii F1 populations GMAL4591 and GMAL4592
<p>Fire blight, a bacterial disease caused by <em>Erwinia</em> <em>amylovora</em>, is the most devastating disease of apples and a major threat to apple production. Most commercial apple cultivars are susceptible to fire blight driving the need to develop fire blight resistant cultivars. Although several major fire blight resistance QTLs have been identified from wild species of <em>Malus</em>, the challenges of breeding apples due to long juvenile phase and heterozygosity greatly limit their use. <em>M. sieversii</em>, the primary progenitor of domesticated apples, is one of the wild <em>Malus</em> species that is sexually compatible with <em>M. domestica</em> and has some favorable fruit quality traits. In this study, we performed QTL analysis on two F1 apple populations of <em>M. domestica</em> cv. 'Royal Gala' × <em>M. sieversi</em>i (GMAL4591 and GMAL4592) to identify fire blight resistance QTL. Parental linkage maps were constructed for each family using marker sets of approximately 20K GBS-SNPs. Phenotype data was collected from parents and progeny through controlled fire blight inoculations in the greenhouse for two subsequent years. A significant (P < 0.0001) moderate-effect fire blight resistance QTL on linkage group 7 of GMAL4591 was identified from the paternal parent<em> M. sieversii</em> 'KAZ 95 17-14' (<em>Msv_FB7</em>). <em>Msv_FB7</em> explains about 48–53% of the phenotyping variance across multiple years and time points. Additionally, a significant (P < 0.001) minor effect QTL explaining 18% of the phenotypic variance was identified in population GMAL4592 on LG10 from 'Royal Gala'. We developed diagnostic SSR markers flanking the Msv_FB7 QTL to use in apple breeding. These findings have the potential to accelerate the development of fire-blight-resistant cultivars.</p>
Genotype by sequencing SNP dataset for Malus domestica x Malus sieversii F1 populations GMAL4591 and GMAL4592
Open the record for dataset details and reuse information.
Data from: Sylleptic branching in winter-headed apple (Malus × domestica) trees: accession-dependent responses and their relationships with other tree architectural characteristics
Open the record for dataset details and reuse information.
Interference with ethylene perception at receptor level sheds light on auxin and transcriptional circuits associated with climacteric ripening of apple fruit (Malus x domestica Borkh.)
GEO Series GSE78745. Malus domestica. 48 samples. Type: Expression profiling by array.
Transcriptomic and GC-MS metabolomic analysis to provide insight into aroma volatile compounds of ‘Granny Smith’ and ‘Jonagold’ apples (Malus domestica)
GEO Series GSE176136. Malus domestica. 6 samples. Type: Expression profiling by high throughput sequencing.
Interference with ethylene perception at receptor level sheds light on auxin and transcriptional circuits associated with climacteric ripening of apple fruit (Malus x domestica Borkh.)
GEO Series GSE78746. Malus domestica. 66 samples. Type: Expression profiling by array.
Transcriptional profiling of Granny Smith apple peel (Malus x domestica Borkh) at harvest between contrasted years for scald incidence
GEO Series GSE135863. Malus domestica. 12 samples. Type: Expression profiling by array.
Transcriptome changes specifically associated with apple (Malus domestica) root defense response during Fusarium proliferatum MR5 infection
GEO Series GSE171688. Malus domestica. 12 samples. Type: Expression profiling by high throughput sequencing.
Time series transcriptome of Venturia inaequalis (apple scab) infecting Malus domestica (apple)
GEO Series GSE198244. Malus domestica; Venturia inaequalis. 28 samples. Type: Expression profiling by high throughput sequencing.
Transcriptome changes associated with apple (Malus domestica) root defense response during Pythium ultimum infection
GEO Series GSE62103. Malus domestica. 15 samples. Type: Expression profiling by high throughput sequencing.
Malus domestica cultivar: McIntosh and Husveti rozmaring
GEO Series GSE116995. Malus domestica. 6 samples. Type: Methylation profiling by high throughput sequencing.
Effect of 1-MCP and ozone post-harvest treatments on the transcriptional profiling of Granny Smith apple peel (Malus x domestica Borkh) after cold storage.
GEO Series GSE133456. Malus domestica. 16 samples. Type: Expression profiling by array.
1-MCP effect on the transcriptional profiling of apple flesh (Malus x domestica Borkh, Gala variety) maintained in cold storage
GEO Series GSE59728. Malus domestica. 24 samples. Type: Expression profiling by array.
Transcriptional Profiling of Apple (Malus x domestica Borkh) Floral Induction in Shoot Apical Meristems
GEO Series GSE64646. Malus domestica. 3 samples. Type: Expression profiling by array.
A single nucleotide polymorphism in the promoter of a hairpin RNA contributes to Alternaria leaf spot resistance in apple (Malus × domestica Borkh.)
GEO Series GSE115664. Malus domestica. 4 samples. Type: Non-coding RNA profiling by high throughput sequencing.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.