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170 results for “Onagraceae”
FIGURE 3 in Ludwigia irregularis (Onagraceae) a rare new species from southern Brazil, and typification of the morphologically similar L. myrtifolia
FIGURE 3. Lectotype of Ludwigia myrtifolia (A.F.C.P. de Saint-Hilaire B1-1532 P barcode P01819487). Copyright: Muséum National d'Histoire Naturelle.
Comparative Analysis of Complete Chloroplast Genomes of 13 Species in Epilobium, Circaea, and Chamaenerion and Insights into Phylogenetic Relationships of Onagraceae
<p>This is all the alignments which used to constructed a phylogenetic tree in our study about Onagraceae. The evening primrose family, Onagraceae, is a well defined family of the order Myrtales, which comprises 22 genera widely distributed from boreal to tropical areas. In the present study, we report and characterize the complete chloroplast genome sequences of 13 species in <em>Circaea</em>,<em> Chamaenerion</em>, and <em>Epilobium</em> using a next-generation sequencing method. We also retrieved plastome sequences from two other Onagraceae genera to characterize the chloroplast genome of the family. The complete plastomes of Onagraceae showed a typical quadripartite structure and encoded an identical set of 112 genes (with exclusion of duplication), including 78 protein-coding genes, 30 transfer RNAs, and four ribosomal RNAs. The results show that chloroplast genomes are basically conserved in gene arrangement across the family. Whereas, a large segment of inversion was detected in the LSC region of all samples in the<em> Oenothera </em>subsect. <em>Oenothera</em>. An inverted repeat (IR) contraction was found in <em>Circaea</em> and<em> Ludwigia </em>samples. We also compared chloroplast genomes across the Onagraceae samples and revealed similarities in some features, including nucleotide content, codon usage, RNA editing sites, and simple sequence repeats (SSRs). Phylogeny was inferred by the chloroplast genome data using maximum-likelihood (ML) and Bayesian inference (BI) methods. The generic relationship of Onagraceae was well resolved by the complete plastome sequences, showing potential value in inferring phylogeny within the family. <em>Oenothera </em>phylogeny was better resolved than other densely sampled genera. Biparental transmission may be the main cause of higher variation in the genus<em> Oenothera</em>.</p>
FIGURE 3 in A checklist of Onagraceae in the Pan-Himalaya region
FIGURE 3. Field photographs of Epilobium. A: Epilobium parviflorum, shows the 4-lobed stigma. B: Epilobium sikkimense, shows the entire stigma. C: Epilobium wallichianum. D: Epilobium williamsii. Photographed by Y.K. Luo & L. Xie.
FIGURE 2 in A checklist of Onagraceae in the Pan-Himalaya region
FIGURE 2. Field photographs of Chamaenerion and Circaea. A: Chamaenerion angustifolium. B: Chamaenerion conspersum. C: Circaea alpina subsp. imaicola. D: Circaea cordata. E: Circaea repens. Photographed by Y.K. Luo & L. Xie.
FIGURE 5 in Lectotypification, epitypification and taxonomic notes on Oenothera fallax (Onagraceae)
FIGURE 5. Red-striped flower buds and large flowers of Oenothera fallax Renner (phot. M. Woźniak-Chodacka).
FIGURE 4 in Lectotypification, epitypification and taxonomic notes on Oenothera fallax (Onagraceae)
FIGURE 4. Rhachis of Oenothera fallax Renner covered with red-coloured papillae (phot. M. Woźniak-Chodacka).
Data from: No influence of water limitation on the outcome of competition between diploid and tetraploid Chamerion angustifolium (Onagraceae)
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Data from: Climatic niche differences between diploid and tetraploid cytotypes of Chamerion angustifolium (Onagraceae)
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Data from: Local topography shapes fine-scale spatial genetic structure in the Arkansas Valley evening primrose, Oenothera harringtonii (Onagraceae)
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Supporting Data for: Differential gene expression associated with a floral scent polymorphism in the evening primrose Oenothera harringtonii (Onagraceae)
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Data from: Stochastic character mapping of state-dependent diversification reveals the tempo of evolutionary decline in self-compatible Onagraceae lineages
A major goal of evolutionary biology is to identify key evolutionary transitions that correspond with shifts in speciation and extinction rates. Stochastic character mapping has become the primary method used to infer the timing, nature, and number of character state transitions along the branches of a phylogeny. The method is widely employed for standard substitution models of character evolution. However, current approaches cannot be used for models that specifically test the association of character state transitions with shifts in diversification rates such as state-dependent speciation and extinction (SSE) models. Here we introduce a new stochastic character mapping algorithm that overcomes these limitations, and apply it to study mating system evolution over a time-calibrated phylogeny of the plant family Onagraceae. Utilizing a hidden state SSE model we tested the association of the loss of self-incompatibility with shifts in diversification rates. Confirming long standing theory, we found that self-compatible lineages have higher extinction rates and lower net diversification rates compared to self-incompatible lineages. Furthermore, these results provide empirical evidence for the "senescing" diversification rates predicted in highly selfing lineages: our mapped character histories show that the loss of self-incompatibility is followed by a short-term spike in speciation rates, which declines after a time lag of several million years resulting in negative net diversification. Lineages that have long been self-compatible such as Fuchsia and Clarkia are in a previously unrecognized and ongoing evolutionary decline. Our results demonstrate that stochastic character mapping of SSE models is a powerful tool for examining the timing and nature of both character state transitions and shifts in diversification rates over the phylogeny.
Figure 1. A in Pollination and breeding system in two sympatric Fuchsia (Onagraceae) species at the Parque Nacional do Itatiaia (Brazil): Hummingbirds, insects and facultative self-pollination
Figure 1. A. Flowers of Fuchsia regia in female (left) and male phases (right). B. Flowers of F. campos-portoi. C. Possible hybrid (F. regia x F. campos-portoi) photographed in 2009, near the IBAMA base ao the Itatiaia National Park.
FIGURE 3 in Ludwigia litoranea (Onagraceae), a new species from coastal southern Brazil
FIGURE 3. Distribution of Ludwigia litoranea Cocco & Boldrini in southern Brazil.
FIGURE 2. Ludwigia litoranea Cocco & Boldrini. A. Flowers. B. Habit. C in Ludwigia litoranea (Onagraceae), a new species from coastal southern Brazil
FIGURE 2. Ludwigia litoranea Cocco & Boldrini. A. Flowers. B. Habit. C. Habitat.
FIGURE 2 in A revision of taxonomic relation between Oenothera perangusta and O. ersteinensis (Onagraceae) based on morphometric research and statistical analyses
FIGURE 2. The holotype of Oenothera perangusta Gates var. rubricalyx Gates (GH-00073030).
FIGURE 3 in A revision of taxonomic relation between Oenothera perangusta and O. ersteinensis (Onagraceae) based on morphometric research and statistical analyses
FIGURE 3. The paratype of Oenothera ersteinensis Linder & Jean (STR-40811).
FIGURE 1 in A revision of taxonomic relation between Oenothera perangusta and O. ersteinensis (Onagraceae) based on morphometric research and statistical analyses
FIGURE 1. The holotype of Oenothera perangusta Gates (GH-00073029).
FIGURE 1 in Validation of the name Oenothera italica (Onagraceae)
FIGURE 1. Holotype of Oenothera italica Rostański & Soldano (KTU 101877).
FIGURE 1 in Validation of the names Oenothera issleri and O. issleri var. silesiacoides (Onagraceae)
FIGURE 1. Holotype of Oenothera issleri Renner ex Rostański—sheet 1 (WRSL).
FIGURE 2 in Validation of the names Oenothera issleri and O. issleri var. silesiacoides (Onagraceae)
FIGURE 2. Holotype of Oenothera issleri Renner ex Rostański—sheet 2 (WRSL).
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