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393 results for “New Hybrids”
FIGURE 3 in Two New Hybrid Daffodils (Narcissus, Amaryllidaceae) From Northern Extremadura (Cáceres, Spain)
FIGURE 3. Linear Discriminant Analysis (LDA) scatter plots of morphometrical traits with 95% confidence ellipses. 3A. Comparison of N. × richardianus with its parental species. 3B. Same for N. × kirchnerianus.
FIGURE 1. A in Two New Hybrid Daffodils (Narcissus, Amaryllidaceae) From Northern Extremadura (Cáceres, Spain)
FIGURE 1. A. Typical colony of short-scaped N. vitekii on an open pasture at the locus classicus in Sierra de Gata (Extremadura, Spain). B. N. rupicola in a shady quartzite crevice near Hornachos (Badajoz). C. N. triandrus subsp. pallidulus in the immediate vicinity of N. vitekii in a forest clearing. Note the more elevated habit of the latter in a partially shady habitat. D. N. × richardianus in a neighbouring scrub clearing. Pale flowers and widely open coronas are the typical outcome of N. triandrus subsp. pallidulus acting as the maternal parent (see also Fig. 2D). E. N. × kirchnerianus in an open pasture close to granite outcrops. Note the intense yellow and the narrowed corona mouth, typical outcome of a crossing where N. vitekii acted as the maternal parent (compare with Fig. 2E). All photographs by the author.
FIGURE 12 in Morphological, cytological, palynological and molecular evidence on two new hybrids from Turkey: an example of homoploid hybridization in Origanum (Lamiaceae)
FIGURE 12. Neighbour-Net splits graph (rooted equal angle diagram) (left side) and phylogram (right side) showing the positions of the new hybrids based on nrITS sequences
FIGURE 11 in Morphological, cytological, palynological and molecular evidence on two new hybrids from Turkey: an example of homoploid hybridization in Origanum (Lamiaceae)
FIGURE 11. Metaphase chromosomes of: A, O. vulgare subsp. hirtum (Dirmenci 4507); B, O. ×sevcaniae (Dirmenci 4508); C, O. vogelii (Dirmenci 4509).
FIGURE 10 in Morphological, cytological, palynological and molecular evidence on two new hybrids from Turkey: an example of homoploid hybridization in Origanum (Lamiaceae)
FIGURE 10. Metaphase chromosomes of: A, O. boissieri (Dirmenci 4501); B, O. vulgare subsp. hirtum (Dirmenci 4500).
FIGURE 9 in Morphological, cytological, palynological and molecular evidence on two new hybrids from Turkey: an example of homoploid hybridization in Origanum (Lamiaceae)
FIGURE 9. SEM micrographs of investigated taxa. O. ×sevcaniae (A–D), O. vogelii (E–H) and O. vulgare subsp. hirtum (I–L). Mesocolpium and colpi (A, E, I), apocolpial area (B, F, J), exine surface (C, G, K), pollen grains with different size (D, H, L).
FIGURE 6 in Morphological, cytological, palynological and molecular evidence on two new hybrids from Turkey: an example of homoploid hybridization in Origanum (Lamiaceae)
FIGURE 6. Flowers and calyx of Origanum vogelii (A, D, E); O. ×sevcaniae (B, F); O. vulgare subsp. hirtum (C, G).
FIGURE 4 in Morphological, cytological, palynological and molecular evidence on two new hybrids from Turkey: an example of homoploid hybridization in Origanum (Lamiaceae)
FIGURE 4. Habitus, inflorescence and spicules of Origanum boissieri (A, D, G); O. ×malyeri (B, E, H); O. vulgare subsp. hirtum (C, F, I).
FIGURE 7 in Morphological, cytological, palynological and molecular evidence on two new hybrids from Turkey: an example of homoploid hybridization in Origanum (Lamiaceae)
FIGURE 7. Habitus, inflorescence and spicules of Origanum vogelii (A, D, G); O. ×sevcaniae (B, E, H); O. vulgare subsp. hirtum (C, F, I).
FIGURE 3 in Morphological, cytological, palynological and molecular evidence on two new hybrids from Turkey: an example of homoploid hybridization in Origanum (Lamiaceae)
FIGURE 3. Flowers and calyx of Origanum boissieri (A, D); O. ×malyeri (B, E); O. vulgare subsp. hirtum (C, F).
FIGURE 1. A in Kalanchoe ×estrelae (Crassulaceae subfam. Kalanchooideae): a new nothospecies for the hybrid between K. luciae and K. sexangularis
FIGURE 1. A. Kalanchoe luciae, near Pretoria, Gauteng province, South Africa. B. Kalanchoe sexangularis var. sexangularis, near Mbombela, Mpumalanga, South Africa. C. Kalanchoe ×estrelae in cultivation in Pretoria. D. Inflorescence of K. ×estrelae. E. Comparison of the flowers of K. luciae (left), K. ×estrelae (center), and K. sexangularis var. sexangularis (right). Scale bar = 10 mm. F. Prof. Estrela Figueiredo for whom K. ×estrelae is named framed by spent inflorescences of K. sexangularis var. sexangularis. Photograph taken on 19 November 2017. All photographs taken by Gideon F. Smith.
FIGURE 6 in Laelia × meavei: A new natural hybrid between L. dawsonii fo. dawsonii and L. rubescens fo. peduncularis (Orchidaceae: Laeliinae) from Oaxaca, Mexico
FIGURE 6. Laelia rubescens fo. rubescens. A. Flower. B. Labellum, front view. C. Labellum, back view. D. Sepals and petals, front view. E. Ovary-pedicel, labellum and column, front view. F. Ovary-pedicel, labellum and column, back view. G. Ovary-pedicel, and column, front view. H. Column, front view. I. Column, back view (based on W. Cetzal 376, CICY).
FIGURE 4 in Laelia × meavei: A new natural hybrid between L. dawsonii fo. dawsonii and L. rubescens fo. peduncularis (Orchidaceae: Laeliinae) from Oaxaca, Mexico
FIGURE 4. Laelia dawsonii fo. dawsonii. A. Flower. B. Labellum, front view. C. Labellum, back view. D. Sepals and petals, front view. E. Ovary-pedicel, labellum and column, front view. F. Ovary-pedicel, labellum and column, back view. G. Column, front view. H. Column, lateral view. I. Anther cap and pollinarium (based on E.A. Pérez-García 308, AMO).
FIGURE 3 in Laelia × meavei: A new natural hybrid between L. dawsonii fo. dawsonii and L. rubescens fo. peduncularis (Orchidaceae: Laeliinae) from Oaxaca, Mexico
FIGURE 3. Plants of the natural hybrid and putative parents. A. Laelia dawsonii. B. Laelia × meavei. C. Laelia rubescens fo. peduncularis
FIGURE 1 in Laelia × meavei: A new natural hybrid between L. dawsonii fo. dawsonii and L. rubescens fo. peduncularis (Orchidaceae: Laeliinae) from Oaxaca, Mexico
FIGURE 1. Laelia × meavei Cetzal & E.A. Pérez-García. A. Flower. B. Labellum, front view. C. Labellum, back view. D. Sepals and petals, front view. E. Ovary-pedicel, labellum and column, front view. F. Ovary-pedicel, labellum and column, back view. G. Ovarypedicel, and column, front view. H. Column, front view. I. Column, back view. J. Anther cap and pollinarium (based on J.J. Pérez-Meza sub. G. Carnevali 7953, CICY).
FIGURE 5 in Laelia × meavei: A new natural hybrid between L. dawsonii fo. dawsonii and L. rubescens fo. peduncularis (Orchidaceae: Laeliinae) from Oaxaca, Mexico
FIGURE 5. Laelia rubescens fo. penducularis. A. Plant with flowers in habitat (Oaxaca, Mexico), B. Flowers, close up (Puerto Escondido, Oaxaca, Mexico) (based on G. Carnevali s.n., CICY).
Data from: Anchored hybrid enrichment provides new insights into the phylogeny and evolution of longhorned beetles (Cerambycidae)
Cerambycidae is a species-rich family of mostly wood-feeding (xylophagous) beetles containing nearly 35 000 known species. The higher-level phylogeny of Cerambycidae has never been robustly reconstructed using molecular phylogenetic data or a comprehensive sample of higher taxa, and its internal relationships and evolutionary history remain the subjects of ongoing debate. We reconstructed the higher-level phylogeny of Cerambycidae using phylogenomic data from 522 single copy nuclear genes, generated via anchored hybrid enrichment. Our taxon sample (31 Chrysomeloidea, four outgroup taxa: two Curculionoidea and two Cucujoidea) included exemplars of all families and 23 of 30 subfamilies of Chrysomeloidea (18 of 19 non-chrysomelid Chrysomeloidea), with a focus on the large family Cerambycidae. Our results reveal a monophyletic Cerambycidae s.s. in all but one analysis, and a polyphyletic Cerambycidae s.l. When monophyletic, Cerambycidae s.s. was sister to the family Disteniidae. Relationships among the subfamilies of Cerambycidae s.s. were also recovered with strong statistical support except for Cerambycinae being made paraphyletic by Dorcasomus Audinet-Serville (Dorcasominae) in the nucleotide (but not amino acid) trees. Most other chrysomeloid families represented by more than one terminal taxon – Chrysomelidae, Disteniidae, Vesperidae and Orsodacnidae – were monophyletic, but Megalopodidae was rendered paraphyletic by Cheloderus Gray (Oxypeltidae). Our study corroborates some relationships within Chrysomeloidea that were previously inferred from morphological data, while also reporting several novel relationships. The present work thus provides a robust framework for future, more deeply taxon-sampled, phylogenetic and evolutionary studies of the families and subfamilies of Cerambycidae s.l. and other Chrysomeloidea.
Data from: Strongly asymmetric hybridization barriers shape the origin of a new polyploid species and its hybrid ancestor
PREMISE OF THE STUDY: Hybridization between diploids and tetraploids can lead to new allopolyploid species, often via a triploid intermediate. Viable triploids are often produced asymmetrically, with greater success observed for "maternal-excess" crosses where the mother has a higher ploidy than the father. Here we investigated the evolutionary origins of Mimulus peregrinus, an allohexaploid recently derived from the triploid M. ×robertsii, to determine whether reproductive asymmetry has shaped the formation of this new species. METHODS: We used reciprocal crosses between the diploid (M. guttatus) and tetraploid (M. luteus) progenitors to determine the viability of triploid M. ×robertsii hybrids resulting from paternal- vs. maternal-excess crosses. To investigate whether experimental results predict patterns seen in the field, we performed parentage analyses comparing natural populations of M. peregrinus to its diploid, tetraploid, and triploid progenitors. Organellar sequences obtained from pre-existing genomic data, supplemented with additional genotyping was used to establish the maternal ancestry of multiple M. peregrinus and M. ×robertsii populations. KEY RESULTS: We found strong evidence for asymmetric origins of M. peregrinus, but opposite to the common pattern, with paternal-excess crosses significantly more successful than maternal-excess crosses. These results successfully predicted hybrid formation in nature: 111 of 114 M. ×robertsii individuals, and 27 of 27 M. peregrinus, had an M. guttatus maternal haplotype. CONCLUSION: This study, which includes the first Mimulus chloroplast genome assembly, demonstrates the utility of parentage analysis through genome skimming. We highlight the benefits of complementing genomic analyses with experimental approaches to understand asymmetry in allopolyploid speciation.
FIGURE 2 in Cattleya × itabapoanaensis (Orchidaceae), a new natural hybrid from Rio Janeiro State (Brazil)
FIGURE 2. Map for Cattleya × itabapoanaensis in Brazil at Bom Jesus do Itabapoana, Rio de Janeiro State. (Drawing by L. Echternacht-Andrade)
FIGURE 1 in Cattleya × itabapoanaensis (Orchidaceae), a new natural hybrid from Rio Janeiro State (Brazil)
FIGURE 1. Cattleya ×itabapoanaensis. a. Habit. b–e. Detail of perianth (b: dorsal sepal, c: lateral petal, d: lateral sepal, e: labellum). f. Detail of column, side view (right), ventral view (left). g. Anther cap with pollinia intact. h. Pollinia and caudicles. (Drawing by V.P. Castro)
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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
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OpenNeuro
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