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1,418 results for “Grasses”
FIGURE 3 in Calamagrostis nandadeviensis (Poaceae, Agrostidinae), a new grass species from India
FIGURE 3. Distribution of Calamagrostis nandadeviensis sp. nov. in Himachal Pradesh and Uttarakhand, India.
FIGURE 1 in Calamagrostis nandadeviensis (Poaceae, Agrostidinae), a new grass species from India
FIGURE 1. Calamagrostis nandadeviensis sp. nov.; A. Ligule, abaxial view, B. Lower branch of panicle, C. Spikelet, D. Upper and lower glume, lateral view, E. Floret, F. Palea, G. Rachilla extension, H. Anthers, I. Lodicule.
FIGURE 2 in Calamagrostis nandadeviensis (Poaceae, Agrostidinae), a new grass species from India
FIGURE 2. Calamagrostis nandadeviensis sp. nov.; A. Culm, basal view, B. Panicle, C. Ligules, abaxial view, D. Spikelet, E. Upper and lower glume, lateral view, F. Floret, lateral view, G. Palea, H. Anthers, I. Lodicule.
FIGURE 3 in Checklist of Kilimanjaro grasses shows that both plot and herbarium methods are necessary to record diversity
FIGURE 3. Species (a) and genera (b) of Mount Kilimanjaro grasses ranked by the number of times they are recorded in our database, including both herbarium and plot records. The red line marks 50% of the total number of specimen records.
FIGURE 1 in Checklist of Kilimanjaro grasses shows that both plot and herbarium methods are necessary to record diversity
FIGURE 1. Map of the study area (black line) centred on Mount Kilimanjaro in Tanzania, with the location of all study plots (red in b), and all georeferenced specimens except those from the plots (red in a). Maps generated in R using the 'ggmap' and 'ggplot2' packages (Kahle & Wickham, 2016; Wickham, et al., 2018).
FIGURE 3 in Rediscovery of Parahyparrhenia bellariensis (Poaceae: Andropogoneae): A presumed extinct grass from Andhra Pradesh, India
FIGURE 3. Parahyparrhenia bellariensis in Gandikota Fort Hill. A. Habit. B. Inflorescence. C. Basal portion. D. Magnified lowest bulged sheath. E. Ligule. F. Raceme. G. Heterogamous spikelets. (Photography by: Shahid Nawaz)
FIGURE 4 in Rediscovery of Parahyparrhenia bellariensis (Poaceae: Andropogoneae): A presumed extinct grass from Andhra Pradesh, India
FIGURE 4. Illustration of the spikelets of Parahyparrhenia bellariensis. A. Portion of spiciform-raceme. B–L: Sessile spikelet and its parts. B. Sessile spikelet. C1. Lower glume (dorsal). C2. Lower glume (ventral). C3. Apex of lower glume. C4. T.S. of lower glume. D1. Upper glume (ventral). D2. Upper glume (lateral). D3. Apex of upper glume. E. Lower lemma. F. Upper lemma. G1. Upper palea. G2. Apex of upper palea. G3. Apex of upper palea. H. Anthers. I. Lodicules. J. Pistil. K1. Caryopsis. K2. T.S. of caryopsis. L. Callus of sessile spikelet. M. Rhachis internode. N. Pedicel. O–W: Pedicelled spikelet and its parts. O. Callus. P. Pedicelled spikelet. Q1. Lower glume (dorsal). Q2. Lower glume (ventral). R. Upper glume. S. Lower lemma. T. Upper lemma. U. Upper palea. V. Anthers. W. Lodicules. (Illustrated by Shahid Nawaz from "Shahid Nawaz GK-302")
FIGURE 2 in Rediscovery of Parahyparrhenia bellariensis (Poaceae: Andropogoneae): A presumed extinct grass from Andhra Pradesh, India
FIGURE 2. Habitats of Parahyparrhenia bellariensis. A & B: Gandikota Fort Hill. C. Gooty Fort Hill. (Photography by: Mr. Mohammad Yusuf Mujawar & Shahid Nawaz)
Banks grass mite (Acari: Tetranychidae) suppression may add to the benefit of drought-tolerant corn hybrids exposed to water-stress
<p class="CxSpFirst">Spider mite (Acari: Tetranychidae) outbreaks are common on corn grown in the arid West. Hot and dry conditions reduce mite development time, increase fecundity, and accelerate egg hatch. Climate change is predicted to increase drought incidents and produce more intense temperature patterns. Together, these environmental shifts may cause more frequent and severe spider mite infestations. Spider mite management is difficult as many commercially-available acaricides are ineffective due to the development of resistance traits in field mite populations. Therefore, alternative approaches to suppress outbreaks are critically needed. Drought-tolerant plant hybrids alleviate the challenges of growing crops in water-limited environments; yet, it is unclear if drought-tolerant hybrids exposed to water-stress affects mite outbreaks under these conditions. We conducted a greenhouse experiment to evaluate the effect of drought-tolerant corn hybrids on Banks grass mite, a primary pest of corn, under optimal irrigation and water-stress irrigation. This was followed by a 2-year field study investigating the effect of drought-tolerant corn hybrids exposed to the same irrigation treatments on Banks grass mite artificially infested on hybrids and resident spider mite populations. Results showed that water-stressed drought-tolerant hybrids had significantly lower Banks grass mite and resident spider mite populations than water-stressed drought-susceptible hybrids. Interestingly, water-stressed drought-tolerant hybrids had equal Banks grass mite populations to drought-susceptible and drought-tolerant hybrids under optimal irrigation. We posit that planting drought-tolerant hybrids may suppress spider mite outbreaks in water-challenged areas.</p>
Migration without interbreeding: Evolutionary history of a highly selfing Mediterranean grass inferred from whole genomes
<p>Wild plant populations show extensive genetic subdivision and are far from the ideal of panmixia which permeates population genetic theory. Understanding the spatial and temporal scale of population structure is therefore fundamental for empirical population genetics – and of interest in itself, as it yields insights into the history and biology of a species. In this study we extend the genomic resources for the wild Mediterranean grass <i>Brachypodium distachyon</i> to investigate the scale of population structure and its underlying history at whole-genome resolution. 86 accessions were sampled at local and regional scales in Italy and France, which closes a conspicuous gap in the collection for this model organism. The analysis of 196 accessions, spanning the Mediterranean from Spain to Iraq, suggests that the interplay of high selfing and seed dispersal rates has shaped genetic structure in <i>B. distachyon</i>. At the continental scale, the evolution in <i>B. distachyon </i>is characterized by the independent expansion of three lineages during the Upper Pleistocene. Today, these lineages may occur on the same meadow yet do not interbreed. At the regional scale, dispersal and selfing interact and maintain high genotypic diversity, thus challenging the textbook notion that selfing in finite populations implies reduced diversity. Our study extends the population genomic resources for <i>B. distachyon </i>and suggests that an important use of this wild plant model is to investigate how selfing and dispersal, two processes typically studied separately, interact in colonizing plant species.</p>
FIGURE 5. P. mokanshanae. A in Review of the grass feeding leafhopper genus Paramesodes Ishihara (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) from China
FIGURE 5. P. mokanshanae. A: male pygofer, lateral view (without macrosetae); B: male pygofer, dorsal view (without macrosetae); C: subgenital plate, ventral view; D: style, dorsal view; E & F: connective and aedeagus, dorsal and lateral view, respectively.
FIGURE 1. P. albinervosus. A in Review of the grass feeding leafhopper genus Paramesodes Ishihara (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) from China
FIGURE 1. P. albinervosus. A: male pygofer, lateral view (without macrosetae); B: male pygofer, dorsal view (without macrosetae); C: subgenital plate, ventral view; D: style, dorsal view; E & F: connective and aedeagus, dorsal and lateral view, respectively.
FIGURE 4. P. mokanshanae. A in Review of the grass feeding leafhopper genus Paramesodes Ishihara (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) from China
FIGURE 4. P. mokanshanae. A: male pygofer, lateral view (without macrosetae); B: male pygofer, dorsal view (without macrosetae); C: subgenital plate, ventral view; D: style, dorsal view; E & F: connective and aedeagus, dorsal and lateral view, respectively.
FIGURE 3. P in Review of the grass feeding leafhopper genus Paramesodes Ishihara (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) from China
FIGURE 3. P. cangshanae sp. n. A: male pygofer, lateral view (without macrosetae); B: male pygofer, dorsal view (without macrosetae); C: subgenital plate, ventral view; D: style, dorsal view; E & F: connective and aedeagus, dorsal and lateral view, respectively.
FIGURE 2. P. annamae. A in Review of the grass feeding leafhopper genus Paramesodes Ishihara (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) from China
FIGURE 2. P. annamae. A: male pygofer, lateral view (without macrosetae); B: male pygofer, dorsal view (without macrosetae); C: subgenital plate, ventral view; D: style, dorsal view; E: connective and aedeagus, lateral view.
FIGURE 6. P. mokanshanae. A, C & E in Review of the grass feeding leafhopper genus Paramesodes Ishihara (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) from China
FIGURE 6. P. mokanshanae. A, C & E: male pygofer, lateral view (without macrosetae); B, D & F: male pygofer, dorsal view (without macrosetae).
FIGURE 7 in Review of the grass feeding leafhopper genus Paramesodes Ishihara (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) from China
FIGURE 7. Paramesodes menghaiensis. (after Li, Dai & Xing, 2011) A: male pygofer, lateral view; B: male pygofer, dorsal view; C: valve and subgenital plate, ventral view; D: style, dorsal view; E & F: connective and aedeagus, dorsal and lateral view, respectively.
FIGURE 2 in Review of the genus Scutylenchus Jairajpuri, 1971 (Nematoda: Tylenchida), with description of Scutylenchus dongtingensis n. sp. from rhizosphere soil of grass in China
FIGURE 2. Digital photomicrographs of Scutylenchus dongtingensis n. sp. Female. A. Anterior of body; B. Head region; D. Pharyngeal gland; G: Posterior of body; H–I. Tails in lateral view; J. Vulval region with epiptygma in lateral view; K. reproductive system with spermatheca; L. Cuticle marked into blocks by longitudinal striae in middle body, in ventral view; M. Incisures in middle body in lateral view. Male. C. Head region with stylet; E. Tails in lateral view; F. Tails in ventral view. (Scale bars: A–C, E–J, M=10 μm; D, L=15 μm; K=20 μm)
FIGURE 1. Scutylenchus dongtingensis n in Review of the genus Scutylenchus Jairajpuri, 1971 (Nematoda: Tylenchida), with description of Scutylenchus dongtingensis n. sp. from rhizosphere soil of grass in China
FIGURE 1. Scutylenchus dongtingensis n. sp. Female. A. Anterior with pharynx; C. Vulva region in lateral view; D–F, K, M. Tails in lateral view; G. Entire body. Male. B. Head region; H–I. Entire body; J. Cloacal region; L. Tail in ventral view, the arrow shows genital papilla; N–O. Tails in lateral view.
FIGURE. The most diverse genera in Iran, along with the number of species, subspecies and varieties. in A checklist of Iranian Grasses
FIGURE. The most diverse genera in Iran, along with the number of species, subspecies and varieties.
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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)
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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.