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ShareScore release 0.9.0
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18 results for “triploid hybrids”
Biomass yields, reproductive fertility, compositional analysis and genetic diversity of newly developed triploid giant Miscanthus Hybrids
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Morphological characteristics of pollen from triploid watermelon and its fate on stigmas in a hybrid crop production system
<p>Hybrid crop production is more reliant on pollinators compared to open-pollinated crops because they require cross-pollination between a male-fertile and a male-sterile line. Little is known about how stigma receipt of pollen from male-sterile genotypes affects reproduction in hybrids. Non-viable and non-compatible pollen cannot fertilise plant ovules, but may still interfere with pollination success. Here we used seedless watermelon (<em>Citrullus lanatus</em> (Thunb.) Matsum. & Nakai) as a model hybrid plant, to evaluate the morphology, physiology, and movement of pollen from inter-planted genotypes (diploids and triploids). We found that pollen from triploids ('Exclamation' and 'Royal Armada') and diploids ('SP-6', 'Summer Flavor 800', and 'Tiger') was visually distinguishable. Pollen in triploids had more deformities (42.4–46%), tetrads (43–44%), and abnormal growth of callose plugs in pollen tubes. The amount of pollen in triploids to germinate on stigmas was low (8 ± 3%), and few pollen grains produced pollen tubes (6.5 ± 2%). Still, contrary to previous reports our results suggest that some viable pollen grains are produced by triploid watermelons. However, whilst honey bees can collect and deposit pollen from triploids onto stigmas, its effect on hybrid watermelon reproduction is likely to be minimal due to its low germination rate.</p>
Morphological characteristics of pollen from triploid watermelon and its fate on stigmas in a hybrid crop production system
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The plot thickens: Haploid and triploid-like thalli, hybridization, and biased mating type ratios in Letharia
<p>The study of the reproductive biology of lichen fungal symbionts has been traditionally challenging due to their complex and symbiotic lifestyles. Against the common belief of haploidy, a recent genomic study found a triploid-like signal in <em>Letharia</em>. Here, we used genomic data from a pure culture and from thalli, together with a PCR survey of the MAT locus, to infer the genome organization and reproduction in <em>Letharia</em>. We found that the read count variation in the four <em>Letharia</em> specimens, including the pure culture derived from a single sexual spore of <em>L. lupina</em>, is consistent with haploidy. By contrast, the <em>L. lupina </em>read counts from a thallus' metagenome are triploid-like. Characterization of the mating-type locus revealed a conserved heterothallic configuration across the genus, along with auxiliary genes that we identified. We found that the mating-type distributions are balanced in North America for <em>L. vulpina</em> and <em>L. lupina</em>, suggesting widespread sexual reproduction, but highly skewed in Europe for <em>L. vulpina</em>, consistent with predominant asexuality. Taken together, we propose that <em>Letharia</em> fungi are heterothallic and typically haploid, and provide evidence that triploid-like individuals are rare hybrids between <em>L. lupina</em> and an unknown <em>Letharia</em> lineage, reconciling classic systematic and genetic studies with recent genomic observations.</p>
The plot thickens: Haploid and triploid-like thalli, hybridization, and biased mating type ratios in Letharia
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Data from: Contrasting reproductive strategies of triploid hybrid males in vertebrate mating systems
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Expression profiling of hybrid necrosis in triploid hybrids crossed between tetraploid wheat and Aegilops tauschii
GEO Series GSE19613. Triticum aestivum. 4 samples. Type: Expression profiling by array.
The genomes and epigenomes of aquatic plants (Lemnaceae) promote triploid hybridization and clonal reproduction
GEO Series GSE238136. Lemna gibba; Lemna japonica; Lemna turionifera; Lemna minor; Wolffia australiana; Spirodela polyrhiza. 66 samples. Type: Methylation profiling by high throughput sequencing; Other; Non-coding RNA profiling by high throughput sequencing; Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
The genomes and epigenomes of aquatic plants (Lemnaceae) promote triploid hybridization and clonal reproduction [WGS]
GEO Series GSE238135. Lemna gibba; Lemna japonica; Lemna turionifera; Lemna minor; Wolffia australiana. 17 samples. Type: Other.
The genomes and epigenomes of aquatic plants (Lemnaceae) promote triploid hybridization and clonal reproduction [ChIP-Seq]
GEO Series GSE288765. Lemna minor; Lemna japonica; Lemna turionifera. 24 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
Expression profiling of cold-induced hybrid necrosis in triploid hybrids crossed between tetraploid wheat and Aegilops tauschii.
GEO Series GSE24566. Triticum aestivum. 10 samples. Type: Expression profiling by array.
The genomes and epigenomes of aquatic plants (Lemnaceae) promote triploid hybridization and clonal reproduction [smallRNA-Seq]
GEO Series GSE238134. Lemna japonica; Lemna gibba; Wolffia australiana; Spirodela polyrhiza. 12 samples. Type: Non-coding RNA profiling by high throughput sequencing.
The genomes and epigenomes of aquatic plants (Lemnaceae) promote triploid hybridization and clonal reproduction [Hi-C]
GEO Series GSE238132. Lemna turionifera; Lemna gibba; Lemna japonica; Lemna minor; Wolffia australiana. 5 samples. Type: Other.
The genomes and epigenomes of aquatic plants (Lemnaceae) promote triploid hybridization and clonal reproduction [RNA-Seq]
GEO Series GSE238133. Lemna japonica; Lemna gibba. 2 samples. Type: Expression profiling by high throughput sequencing.
The genomes and epigenomes of aquatic plants (Lemnaceae) promote triploid hybridization and clonal reproduction [WGBS]
GEO Series GSE238131. Spirodela polyrhiza; Wolffia australiana; Lemna gibba; Lemna japonica. 6 samples. Type: Methylation profiling by high throughput sequencing.
Expression profiling of severe growth abortion (SGA) in triploid hybrids crossed between tetraploid wheat and Aegilops umbellulata.
GEO Series GSE93943. Triticum aestivum. 4 samples. Type: Expression profiling by array.
Expression profiling of grass-clump dwarf in syntheitic hexaploids from triploid hybrids crossed between tetraploid wheat and Aegilops umbellulata.
GEO Series GSE93969. Triticum aestivum. 4 samples. Type: Expression profiling by array.
Expression profiling of grass-clump dwarf in synthetic hexaploids from triploid hybrids crossed between tetraploid wheat and Aegilops tauschii
GEO Series GSE78784. Triticum aestivum. 6 samples. Type: Expression profiling by array.
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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.