Pyrus pyrifolia
Ontology highlight
ABSTRACT:
PROVIDER: PRJDB10514 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Watercore is a physiological disorder develops in the Japanese pear fruit showing a watery translucent area in the flesh while on the tree and lead to the loss of commercial value. The sustainability to watercore is one of the most important characterization to be studied it the breeding of the Japanese pear. However, even in susceptible cultivars like ‘Hosui’, the degree of watercore development is significantly different from year to year, this makes it difficult to analyze the characteristic phenomena prior to watercore development. We’d obtained two reproducible sib strains, that is, susceptible strains developed severe watercore in all of the fruit every year while no watercore was found in the non-sustainable ones even when they were overmatured. They are originated from ‘Hosui’ x ‘Hogetsu’ and ‘Akiakari’ x ‘Taihaku’. In order to search the genes related to watercore, we used these susceptible and non-susceptible F1 sib strain pairs. By using pear custom microarray, the genes that differed in expression level prior to watercore development were extracted. The sugar-metabolism, hormone, and cell wall related genes were identified in the 105 differentially expressed genes. Some of them showed different expression levels only in the immature stages prior to watercore development.
2021-04-24 | GSE113646 | GEO
Project description:Genome-wide association studies provide insights into fruit biology of pear (Pyrus pyrifolia)
| PRJNA563813 | ENA
Project description:A systems genetics approach reveals PbrNSC as a regulator of lignin and cellulose biosynthesis in stone cells of pear fruit
| PRJNA723405 | ENA
Project description:Transcriptome analysis of 'Xueqing' fruit developement
| PRJNA350882 | ENA
Project description:Transcriptional profiling of pear tree comparing a resistant/tolerant cultivar with a susceptible cultivar to the Stemphylium vesicarium fungus Rocha' pear is an economically important portuguese Pyrus communis L. cultivar very susceptible to the Stemphylium vesicarium pathogenic fungus, the brown spot agent, causing huge decrease on fruit quality and yield production. Field control of brown spot disease is based in systemic application of antifungal chemicals with high economic costs and dramatic consequences to public health and environmental pollution. Plant-pathogen interactions involve a series of events encompassing constitutive and induced plant defence responses whose dissection has been a research target for control many crop diseases. The biosynthesis of cell wall polymers and antifungal compounds appear to be an efficient physical and chemical barrier to infection.To understand the molecular responses behind defence mechanisms of resistant/tolerant and susceptible cultivars of Pyrus communis L. to the S. vesicarium fungus, cDNA microarray technology was used to identify the genes differentially expressed along a time course leaf inoculation between 'Rocha' pear cultivar (a high susceptible cultivar) and 'Ercolini' pear cultivar (a resistant/tolerant pear cultivar). This study aims to contribute with information on the molecular mechanisms involved in host-pathogen interactions responsible for pear tree brown spot disease and resistance to Stemphylium vesicarium. Experimental condition: 'Ercolini' vs 'Rocha' (each experiment including 5 plants from each cultivar). 3 time-points: water-inoculation (T0h), 6 hours after inoculation with S. vesicarium (T6h) and 24 hours after inoculation with S. vesicarium. Biological replicates: 3 in each time-point. One replicate per array.
2011-07-02 | E-GEOD-30353 | biostudies-arrayexpress
Project description:Transcriptional profiling of pear tree comparing a resistant/tolerant cultivar with a susceptible cultivar to the Stemphylium vesicarium fungus Rocha' pear is an economically important portuguese Pyrus communis L. cultivar very susceptible to the Stemphylium vesicarium pathogenic fungus, the brown spot agent, causing huge decrease on fruit quality and yield production. Field control of brown spot disease is based in systemic application of antifungal chemicals with high economic costs and dramatic consequences to public health and environmental pollution. Plant-pathogen interactions involve a series of events encompassing constitutive and induced plant defence responses whose dissection has been a research target for control many crop diseases. The biosynthesis of cell wall polymers and antifungal compounds appear to be an efficient physical and chemical barrier to infection.To understand the molecular responses behind defence mechanisms of resistant/tolerant and susceptible cultivars of Pyrus communis L. to the S. vesicarium fungus, cDNA microarray technology was used to identify the genes differentially expressed along a time course leaf inoculation between 'Rocha' pear cultivar (a high susceptible cultivar) and 'Ercolini' pear cultivar (a resistant/tolerant pear cultivar). This study aims to contribute with information on the molecular mechanisms involved in host-pathogen interactions responsible for pear tree brown spot disease and resistance to Stemphylium vesicarium.
2011-07-02 | GSE30353 | GEO
Project description:This is a de novo assembly and annotation of a complete mitochondrial genome from Pyrus pyrifolia in the family Rosaceae. The complete mitochondrial genome of P. pyrifolia was assembled from PacBio RSII P6-C4 sequencing reads. The circular genome was 458,873 bp in length, containing 39 protein-coding genes, 23 tRNA genes and three rRNA genes. The nucleotide composition was A (27.5%), T (27.3%), G (22.6%) and C (22.6%) with GC content of 45.2%. Most of protein-coding genes use the canonical start codon ATG, whereas nad1, cox1, matR and rps4 use ACG, mttB uses ATT, rpl16 and rps19 uses GTG. The stop codon is also common in all mitochondrial genes. The phylogenetic analysis showed that P. pyrifolia was clustered with the Malus of Rosaceae family. Maximum-likelihood analysis suggests a clear relationship of Rosids and Asterids, which support the traditional classification.
| S-EPMC7799752 | biostudies-literature
Project description:Pear (genus Pyrus) is one of the oldest temperate fruit crops, of which at least 22 primary species are recognized. This article documents the public availability of the partial draft genome sequence data of the Taiwanese pear 'Hengshanli' that is less dormant during the winter season. This dataset may be used to prepare molecular markers for the breeding of new cultivars that are subjected to chilling at low temperatures to overcome endodormancy. This data will also help analyze the process of evolution in the Pyrus species. We sequenced paired-end libraries using Illumina HiSeq. 2500 and generated approximately 210M reads. Data on the draft genome obtained in this study has been deposited to the DNA Data Bank of Japan (DDBJ). The read data were submitted to the DDBJ Read Archive (BioProject: PRJDB6877, BioSample: SAMD00117052).
| S-EPMC6141270 | biostudies-literature
Project description:The Japanese pear (Pyrus pyrifolia), a member of the family Rosaceae, is one of the most important fruit trees in Japan. This article documents the public availability of the partial draft genome sequence data of the Japanese pear strain TH3, which is the S1 of 'Osa-Nijisseiki' and is homozygous for the S4sm gene. This dataset may be used to prepare molecular markers for breeding of new cultivars having a crisp texture and feel. This data will also help research on physiological disorders affecting Japanese pear fruit. We sequenced paired-end libraries using Illumina HiSeq. 2500 and generated approximately 212M reads. Data on the draft genome obtained in this study has been deposited to the DNA Data Bank of Japan (DDBJ). The read data were submitted to the DDBJ Read Archive (BioProject: PRJDB6878, BioSample: SAMD00117051).
| S-EPMC6141501 | biostudies-literature