Similar Datasets
Project description:Purpose: We conducted a reverse genetic approach in order to elucidate the role of H3K27me3 writers and erasers in the process of sex determination and expression in melon. Methods: We used TILLING to find loss-of function mutants of cmLHP1 proteins in melon. Selected alleles were phenotyped at the developmental and molecular levels. We generated the cmlhp1ab mutant, for which we observed a pleiotropic phenotype. For this double mutant, we integrated RNA-seq (leaves), ChIP-seq (leaves) and RT-PCR (flowers) for elucidating the impact of cmLHP1 loss of function at the molecular level. Results: cmlhp1ab displayed a pleiotropic phenotype which correlated with genome-wide changes of H3K27me3 (moore oftenly hypomethylation) and deregulation of genes involved in flower development and hormone responses.
2022-02-15 | GSE180385 | GEO
Project description:Purpose: We conducted a reverse genetic approach in order to elucidate the role of H3K27me3 writers and erasers in the process of sex determination and expression in melon. Methods: We used TILLING to find loss-of function mutants of cmLHP1 proteins in melon. Selected alleles were phenotyped at the developmental and molecular levels. We generated the cmlhp1ab mutant, for which we observed a pleiotropic phenotype. For this double mutant, we integrated RNA-seq (leaves), ChIP-seq (leaves) and RT-PCR (flowers) for elucidating the impact of cmLHP1 loss of function at the molecular level. Results: cmlhp1ab displayed a pleiotropic phenotype which correlated with genome-wide changes of H3K27me3 (moore oftenly hypomethylation) and deregulation of genes involved in flower development and hormone responses.
2022-02-15 | GSE180383 | GEO
Project description:CmLHP1 proteins play a key role in plant development and maintenance of monoecy in Cucumis melo
| PRJNA748033 | ENA
Project description:CmLHP1 proteins play a key role in plant development and maintenance of monoecy in Cucumis melo (ChIP-Seq)
| PRJNA748045 | ENA
Project description:CmLHP1 proteins play a key role in plant development and maintenance of monoecy in Cucumis melo (RNA-Seq)
| PRJNA748168 | ENA
Project description:Hami melon (Cucumis melo) is the most important melon crop grown in the north-western provinces of China. In order to elucidate the genetic and molecular basis of developmental changes related to size, flesh, sugar and sour content, we performed a transcriptome profiling of its fruit development. Over 155 000 000 clean reads were mapped to MELONOMICS genome, yielding a total of 23 299 expressed genes. Of these, 554 genes were specifically expressed in flowers, and 3260 genes in fruit flesh tissues. The 7892 differentially expressed genes (DEGs) were related to fruit development and mediated diverse metabolic processes and pathways; 83 DEGs and 13 DEGs were possibly associated with sucrose and citric acid accumulation, respectively. The quantitative real-time PCR results showed that six out of eight selected candidate genes displayed expression trends similar to our DEGs. This study profiled the gene expression related to different growing stages of flower and fruit at the whole transcriptome level to provide an insight into the regulatory mechanism underlying Hami melon fruit development.
| S-EPMC4847005 | biostudies-literature
Project description:Three RNA viruses-Cucumis melo cryptic virus (CmCV), Cucumis melo amalgavirus 1 (CmAV1), and melon necrotic spot virus (MNSV)-were identified from a melon (Cucumis melo) transcriptome dataset. CmCV has two dsRNA genome segments; dsRNA-1 is 1592 bp in size, containing a conserved RNA-dependent RNA polymerase (RdRp), and dsRNA-2 is 1715 bp in size, and encodes a coat protein (CP). The sequence alignment and phylogenetic analyses of the CmCV RdRp and CP indicated CmCV clusters with approved or putative deltapartitiviruses in well-supported monophyletic clade. The RdRp of CmCV shared an amino acid sequence identity of 60.7% with the closest RdRp of beet cryptic virus 3, and is <57% identical to other partitiviruses. CmAV1 is a nonsegmented dsRNA virus with a genome of 3424 bp, including two partially overlapping open reading frames (ORFs) encoding a putative CP and RdRp. The sequence alignment and phylogenetic analyses of CmAV1 RdRp revealed that it belongs to the genus Amalgavirus in the family Amalgaviridae. The RdRp of CmAV1 shares 57.7% of its amino acid sequence identity with the most closely related RdRp of Phalaenopsis equestris amalgavirus 1, and is <47% identical to the other reported amalgaviruses. These analyses suggest that CmCV and CmAV1 are novel species in the genera Amalgavirus and Deltapartitivirus, respectively. These findings enrich our understanding of new plant dsRNA virus species.
| S-EPMC6356274 | biostudies-literature
Project description:We report the genome sequence of melon, an important horticultural crop worldwide. We assembled 375 Mb of the double-haploid line DHL92, representing 83.3% of the estimated melon genome. We predicted 27,427 protein-coding genes, which we analyzed by reconstructing 22,218 phylogenetic trees, allowing mapping of the orthology and paralogy relationships of sequenced plant genomes. We observed the absence of recent whole-genome duplications in the melon lineage since the ancient eudicot triplication, and our data suggest that transposon amplification may in part explain the increased size of the melon genome compared with the close relative cucumber. A low number of nucleotide-binding site-leucine-rich repeat disease resistance genes were annotated, suggesting the existence of specific defense mechanisms in this species. The DHL92 genome was compared with that of its parental lines allowing the quantification of sequence variability in the species. The use of the genome sequence in future investigations will facilitate the understanding of evolution of cucurbits and the improvement of breeding strategies.
| S-EPMC3406823 | biostudies-literature
Project description:Heterosis is the superiority of an F1 hybrid over its parents. Since this phenomenon is still unclear in melon, a half diallel experiment based on eight genetically distant breeding lines was conducted in six environments of Central Italy, assessing commercially important traits: yield, total soluble solids (TSS), and days to ripening (DTR). To estimate the additive (general combining ability; GCA) and the non-additive gene effects (specific combining ability; SCA), yield was analyzed by Griffing's methods two and four, and the results were compared to the GGE (Genotype plus Genotype by Environment interaction) biplot methodology; TSS and earliness were evaluated only by Griffing's method four. Overall, GCAs were significantly more relevant than SCAs for all examined traits. Least square means (LsM), mid-parent heterosis (MPH), best-parent heterosis (BPH), as well as Euclidean and Mahalanobis' distances were calculated and compared with the genetic distance (GD). As a few correlations were found statistically significant (only for TSS), it was difficult to predict the value of a hybrid combination only by knowing the genetic distance of its parents. Despite this, heterosis was observed, indicating either the presence of epistatic effects (additive × additive interactions) and/or an underestimate of SCAs embedded within Griffing's method. The significant Env × Entries source of variation suggests development of hybrids in specific environments. The results are discussed with a breeding perspective.
| S-EPMC7076541 | biostudies-literature
Project description:Organ-specific landscapes of H3K9ac and H3K27me3 in melon
2017-05-15 | GSE98054 | GEO