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159 results for “Medicago truncatula”
Plant circadian clock control of Medicago truncatula nodulation involving regulation of Nodule Cysteine-Rich genes
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Data from: Adaptation to climate through flowering phenology: a case study in Medicago truncatula
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Plant growth over one growing season of Medicago truncatula in competition with conspecifics of different genetic relatedness
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Data from: Selection, genome-wide fitness effects and evolutionary rates in the model legume Medicago truncatula
Sequence data for >20 000 annotated genes from 56 accessions of Medicago truncatula were used to identify potential targets of positive selection, the determinants of evolutionary rate variation and the relative importance of positive and purifying selection in shaping nucleotide diversity. Based upon patterns of intraspecific diversity and interspecific divergence, c. 50–75% of nonsynonymous polymorphisms are subject to strong purifying selection and 1% of the sampled genes harbour a signature of positive selection. Combining polymorphism with expression data, we estimated the distribution of fitness effects and found that the proportion of deleterious mutations is significantly greater for expressed genes than for genes with undetected transcripts (nonexpressed) in a previous RNA-seq experiment and greater for broadly expressed genes than those expressed in only a single tissue. Expression level is the strongest correlate of evolutionary rates at nonsynonymous sites, and despite multiple genomic features being significantly correlated with evolutionary rates, they explain less than 20% of the variation in nonsynonymous rates (dN) and <15% of the variation in either synonymous rates (dS) or dN:dS. Among putative targets of selection were genes involved in defence against pathogens and herbivores, genes with roles in mediating the relationship with rhizobial symbionts and one-third of annotated histone-lysine methyltransferases. Adaptive evolution of the methyltransferases suggests that positive selection in gene expression may have occurred through evolution of enzymes involved in epigenetic modification.
Data from: Nod factors potentiate auxin signaling for transcriptional regulation and lateral root formation in Medicago truncatula
Nodulation (Nod) factors (NFs) are symbiotic molecules produced by rhizobia that are essential for establishment of the rhizobium–legume endosymbiosis. Purified NFs can stimulate lateral root formation (LRF) in Medicago truncatula, but little is known about the molecular mechanisms involved. Using a combination of reporter constructs, pharmacological and genetic approaches, we show that NFs act on early steps of LRF in M. truncatula, independently of the ethylene signaling pathway and of the cytokinin receptor MtCRE1, but in interaction with auxin. We conducted a whole-genome transcriptomic study upon NF and/or auxin treatments, using a lateral root inducible system adapted for M. truncatula. This revealed a large overlap between NF and auxin signaling and, more interestingly, synergistic interactions between these molecules. Three groups showing interaction effects were defined: group 1 contained more than 1500 genes responding specifically to the combinatorial treatment of NFs and auxin; group 2 comprised auxin-regulated genes whose expression was enhanced or antagonized by NFs; and in group 3 the expression of NF regulated genes was antagonized by auxin. Groups 1 and 2 were enriched in signaling and metabolic functions, which highlights important crosstalk between NF and auxin signaling for both developmental and symbiotic processes.
Medicago truncatula Gaertn. (BR0000012104055)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Data from: Molecular adaptation in flowering and symbiotic recognition pathways: insights from patterns of polymorphism in the legume Medicago truncatula
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Data from: Candidate genes and genetic architecture of symbiotic and agronomic traits revealed by whole-genome, sequence-based association genetics in Medicago truncatula
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Data from: Nod factors potentiate auxin signaling for transcriptional regulation and lateral root formation in Medicago truncatula
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Data from: Selection, genome-wide fitness effects and evolutionary rates in the model legume Medicago truncatula
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The U-box family genes in Medicago truncatula: key elements in response to salt, cold, and drought stresses
GEO Series GSE136739. Medicago truncatula. 12 samples. Type: Expression profiling by high throughput sequencing.
Expression data of Medicago truncatula skl1-1 roots treated with S. meliloti wild-type or auxin transport inhibitors
GEO Series GSE28172. Medicago truncatula; Sinorhizobium meliloti. 4 samples. Type: Expression profiling by array.
Multiscale gene expression profiling of 1 cm root tips of control and submerged Oryza sativa, Medicago truncatula, Solanum lycopersicum and Solanum pennellii seedlings
GEO Series GSE128680. Solanum lycopersicum; Medicago truncatula; Oryza sativa Japonica Group; Solanum pennellii. 231 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing; Other.
The transcriptomic response to a short day to long day shift in the reference legume Medicago truncatula
GEO Series GSE118893. Medicago truncatula. 18 samples. Type: Expression profiling by high throughput sequencing.
Effect of nitrate on the transcriptome of the primary root tip in Medicago truncatula
GEO Series GSE197021. Medicago truncatula. 24 samples. Type: Expression profiling by array.
miRNAs regulated systemically by nitrogen availability in shoots and roots of Medicago truncatula
GEO Series GSE247405. Medicago truncatula. 24 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Genes differentially expressed in wild-type Medicago truncatula plants during nodulation
GEO Series GSE28173. Sinorhizobium meliloti; Medicago truncatula. 10 samples. Type: Expression profiling by array.
Medicago truncatula roots infected (or not) with the oomycete Aphanomyces euteiches
GEO Series GSE109500. Aphanomyces euteiches. 15 samples. Type: Expression profiling by high throughput sequencing.
High-throughput sequencing of small RNAs in Medicago truncatula
GEO Series GSE13761. Medicago truncatula. 2 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Analysis of gene expression in leaves of Medicago truncatula plants inoculated with arbuscular mycorrhizal fungi and plants fertilized with phosphate
GEO Series GSE80610. Medicago truncatula. 16 samples. Type: Expression profiling by array.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.