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190 results for “plant development”
Data from: Early plant recruitment stages set the template for the development of vegetation patterns along a hydrological gradient
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Data from: Plant quantity affects development and survival of a gregarious insect herbivore and its endoparasitoid wasp
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Data from: Population history provides foundational knowledge for utilizing and developing native plant restoration materials
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Plant diversity ameliorates the evolutionary development of fungicide resistance in an agricultural ecosystem
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Herbicide, fertilization, and planting density effects on intensively managed loblolly pine early stand development
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Figure 1 from: Proskurina K, Yevtifieieva O, Mala O, Mashtaler V (2021) Development of the method for standardization of the medicinal plant raw material of Cichorium intybus L. herb by the total amount of hydroxycinnamic acid derivatives. Pharmacia 68(1): 167-173. https://doi.org/10.3897/pharmacia.68.e49273
Figure 1 The TLC chromatogram of hydroxycinnamic acids in ethanolic extracts of different samples of chicory herb originating from Ukraine. S1–3: chlorogenic acid, caffeic acid and ferulic acid as references; for plant extracts, see abbreviations in Table 3.
Figure 2 from: Proskurina K, Yevtifieieva O, Mala O, Mashtaler V (2021) Development of the method for standardization of the medicinal plant raw material of Cichorium intybus L. herb by the total amount of hydroxycinnamic acid derivatives. Pharmacia 68(1): 167-173. https://doi.org/10.3897/pharmacia.68.e49273
Figure 2 The absorption spectrum of ethanol (50 per cent V/V) chicory herb extracts for 8 sample of the raw plant material. See abbreviations in Table 3. UV/Vis absorption spectra of chlorogenic acid chemical standard at 10.08 µg/ml in ethanol (50 per cent V/V).
Figure 3 from: Proskurina K, Yevtifieieva O, Mala O, Mashtaler V (2021) Development of the method for standardization of the medicinal plant raw material of Cichorium intybus L. herb by the total amount of hydroxycinnamic acid derivatives. Pharmacia 68(1): 167-173. https://doi.org/10.3897/pharmacia.68.e49273
Figure 3 Absorbance values of chlorogenic acid as a function of the solution concentrations. The data correlation was calculated by a linear fit.
Data from: Conserved gene expression programs in developing roots from diverse plants
The molecular basis for the origin and diversification of morphological adaptations is a central issue in evolutionary developmental biology. Here, we defined temporal transcript accumulation in developing roots from seven vascular plants, permitting a genome-wide comparative analysis of the molecular programs used by a single organ across diverse species. The resulting gene expression maps uncover significant similarity in the genes employed in roots and their developmental expression profiles. The detailed analysis of a subset of 133 genes known to be associated with root development in Arabidopsis thaliana indicates that most of these are used in all plant species. Strikingly, this was also true for root development in a lycophyte (Selaginella moellendorffii), which forms morphologically different roots and is thought to have evolved roots independently. Thus, despite vast differences in size and anatomy of roots from diverse plants, the basic molecular mechanisms employed during root formation appear to be conserved. This suggests that roots evolved in the two major vascular plant lineages either by parallel recruitment of largely the same developmental program or by elaboration of an existing root program in the common ancestor of vascular plants.
Data from: A new resource for the development of SSR markers: millions of loci from a thousand plant transcriptomes
Premise of the study: The One Thousand Plant Transcriptomes Project (1KP, 1000+ assembled plant transcriptomes) provides an enormous resource for developing microsatellite loci across the plant tree of life. We developed loci from these transcriptomes and tested their utility. Methods and Results: Using software packages and custom scripts, we identified microsatellite loci in 1KP transcriptomes. We assessed the potential for cross-amplification and whether loci were biased toward exons, as compared to markers derived from genomic DNA. We characterized over 5.7 million simple sequence repeat (SSR) loci from 1334 plant transcriptomes. Eighteen percent of loci substantially overlapped with open reading frames (ORFs), and electronic PCR revealed that over half the loci would amplify successfully in conspecific taxa. Transcriptomic SSRs were approximately three times more likely to map to translated regions than genomic SSRs. Conclusions: We believe microsatellites still have a place in the genomic age—they remain effective and cost-efficient markers. The loci presented here are a valuable resource for researchers.
Data from: Shifts in woody plant defense syndromes during leaf development
1. Herbivores target young leaves in forests worldwide. How this strong and predictable selection pressure has shaped plant defense syndromes remains unclear. Specifically, whether young leaf herbivory has led to general global patterns of shifting leaf defences during lead development (i.e. ontogenetic trajectories) remains unknown but likely. 2. Using meta-analysis, we have synthesized developmental shifts in chemical, physical, and indirect defence traits, as well as leaf nutrient content, during leaf expansion and maturation across 124 woody plant species. Leaf traits were compared for immature young leaves versus mature leaves within studies, and these developmental shifts were then compared across studies to characterize general patterns. 3. Traits shifted strongly during leaf maturation, giving rise to discrete defence syndromes, with young leaves having significantly greater nutrient and secondary chemistry concentrations but reduced toughness and indirect defence traits than mature leaves. These patterns corroborate a growing consensus on the importance of ontogeny in plant defences, illustrating ontogenetic trajectories at the scale of leaves. 4. Trait developmental shifts were stronger in species with synchronous than asynchronous leaf flushing, but whether this reflects variation across biomes remains unclear. 5. Future research on under-studied traits, such as alkaloids, cyanogenesis, leaf phosphorus content, and indirect defence traits, and in a more biogeographic context will provide additional insights into the generality of shifts in defence syndromes during leaf development.
Data from: Marker development for phylogenomics: the case of Orobanchaceae, a plant family with contrasting nutritional modes
Phylogenomic approaches, employing next-generation sequencing (NGS) techniques, have revolutionized systematic and evolutionary biology. Target enrichment is an efficient and cost-effective method in phylogenomics and is becoming increasingly popular. Depending on availability and quality of reference data as well as on biological features of the study system, (semi-)automated identification of suitable markers will require specific bioinformatic pipelines. Here, we established a highly flexible bioinformatic pipeline, BaitsFinder, to identify putative orthologous single copy genes (SCGs) and to construct bait sequences in a single workflow. Additionally, this pipeline has been constructed to be able to cope with challenging data sets, such as the nutritionally heterogeneous plant family Orobanchaceae. To this end, we used transcriptome data of differing quality available for four Orobanchaceae species and, as reference, SCG data from monkeyflower (Erythranthe guttata, syn. Mimulus g.; 1,915 genes) and tomato (Solanum lycopersicum; 391 genes). Depending on whether gaps were permitted in initial blast searches of the four Orobanchaceae species against the reference, our pipeline identified 1,307 and 981 SCGs with average length of 994 bp and 775 bp, respectively. Automated bait sequence construction (using 2× tiling) resulted in 38,170 and 21,856 bait sequences, respectively. In comparison to the recently published MarkerMiner 1.0 pipeline BaitsFinder identified about 1.6 times as many SCGs (of at least 900 bp length). Skipping steps specific to analyses of Orobanchaceae, BaitsFinder was successfully used in a group of non-parasitic plants (three Asteraceae species and, as reference, SCG data from Arabidopsis thaliana based on previously compiled SCGs). Thus, BaitsFinder is expected to be broadly applicable in groups, where only transcriptomes or partial genome data of differing quality are available.
DO ALFALFA PLANTING TIMES AND METHODS AFFECT WHEAT GROWTH AND DEVELOPMENT?
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Data from: Habitat diversification associated with urban development has a little effect on genetic structure in the annual native plant Commelina communis in an East Asian megacity
<p>Basic statistics for each population and genetic and landscape data between populations.</p>
ANALYSIS OF THE PROBLEMS OF THE DEVELOPMENT OF PHOTOVOLTAIC SOLAR POWER PLANTS IN UZBEKISTAN
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Fig 6 from: Tanaka S, Kotaki T, Nishide Y, Ben-Hamouda A, Abdellaoui K, Ebbe MAB, Ely SO (2019) Effects of water extracts of feces from three locust species and various plants on oviposition and embryonic development in the desert locust Schistocerca gregaria. Journal of Orthoptera Research 28(2): 195-204. https://doi.org/10.3897/jor.28.34665
Fig 6 Effects of water extracts of frass produced by desert locusts (Sg), migratory locusts (Lm), and Bombay locusts (Ns) fed with rescue grass leaves on the number of A. Egg pods and B. Holes dug by adult desert locusts presented with extracts mixed with sand. Three cups containing frass extracts of the three locust species were simultaneously presented to locusts in each of two locust cages (light and dark histograms) for seven days. Numbers in parentheses indicate the total numbers of days observed. Bars on histograms indicate one standard deviation. Different letters in each comparison (light or dark histograms) in (A) indicate significant differences at the 5% level with Tukey's multiple comparison test. n.s. indicates no significant differences in each comparison with ANOVA (light or dark histograms).
Fig 5 from: Tanaka S, Kotaki T, Nishide Y, Ben-Hamouda A, Abdellaoui K, Ebbe MAB, Ely SO (2019) Effects of water extracts of feces from three locust species and various plants on oviposition and embryonic development in the desert locust Schistocerca gregaria. Journal of Orthoptera Research 28(2): 195-204. https://doi.org/10.3897/jor.28.34665
Fig 5 Effects of water extracts of frass produced by A, B. Bombay locusts and C, D. Migratory locusts fed with rescue grass leaves on the numbers of egg pods laid (A, C) and holes dug (B, D) by adult female desert locusts presented with extracts mixed with sand. Two cups containing frass extract (treated) and water (control) were simultaneously presented to locusts in each of two locust cages, and the data were combined. Numbers in parentheses indicate the total numbers of days observed. Bars on histograms indicate one standard deviation. Asterisks indicate significant differences at the 5% level with a t-test. n.s. indicates no significant difference.
Fig 2 from: Tanaka S, Kotaki T, Nishide Y, Ben-Hamouda A, Abdellaoui K, Ebbe MAB, Ely SO (2019) Effects of water extracts of feces from three locust species and various plants on oviposition and embryonic development in the desert locust Schistocerca gregaria. Journal of Orthoptera Research 28(2): 195-204. https://doi.org/10.3897/jor.28.34665
Fig 2 Effects of water extracts of frass obtained from lab-reared desert locust fed with romaine lettuce in Tunisia on the number of A. Egg pods laid and B. Holes dug by adult female desert locusts presented with sand mixed with frass extracts. Two cups containing frass extracts (treated) and water (control) were simultaneously presented to locusts in each of two locust cages for seven or eight days, and the data were combined. Numbers in parentheses indicate the total numbers of days observed. Asterisks indicate a significant difference at the 5% level with a t-test. n.s. indicates no significant difference.
Fig 9 from: Tanaka S, Kotaki T, Nishide Y, Ben-Hamouda A, Abdellaoui K, Ebbe MAB, Ely SO (2019) Effects of water extracts of feces from three locust species and various plants on oviposition and embryonic development in the desert locust Schistocerca gregaria. Journal of Orthoptera Research 28(2): 195-204. https://doi.org/10.3897/jor.28.34665
Fig 9 Effects of water extracts of rescue grass-fed desert locust frass on A. Egg widths (mean ± SD; n = 10) and B. Antennal lengths of embryos (mean ± SD; n = 6–11). Eggs were incubated in sand wetted with the frass extract (treated) or water (control) on day three after oviposition at 30°C. C–F. Photographs show embryos observed on days 5 and 9. Triangles in (A) and (B) indicate the time when the treatment started. Vertical bars in C–F indicate 1 mm. White arrows indicate an embryonic antenna in C–E.
Fig 1 from: Tanaka S, Kotaki T, Nishide Y, Ben-Hamouda A, Abdellaoui K, Ebbe MAB, Ely SO (2019) Effects of water extracts of feces from three locust species and various plants on oviposition and embryonic development in the desert locust Schistocerca gregaria. Journal of Orthoptera Research 28(2): 195-204. https://doi.org/10.3897/jor.28.34665
Fig 1 Effects of water extracts of desert locust frass collected under umbrella thorn trees in the Mauritanian desert on the number of A., B. Egg pods laid, and C., D. Holes dug by adult female desert locusts presented with extracts mixed with sand. Frass were collected at sites #1 and #2 in 2016 and 2017, respectively. Two cups containing frass extracts (treated) and water (control) were simultaneously presented to locusts in each of two locust cages for seven or five days, and the data were combined. Numbers in parentheses indicate the total numbers of days observed. Bars on histograms indicate one standard deviation. Asterisks indicate a significant difference at the 5% level with a t-test. n.s. indicates no significant difference.
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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.