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15 results for “Pachyrhynchus weevil”
Fig. 2 in Pachyrhynchus obumanuvu sp. nov., a new species of easter egg weevil (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini) from Mindanao Island, Philippines
Fig. 2. Male genitalia of Pachyrhynchus obumanuvu sp. nov.: A. penis in lateral view, B. idem. in dorsal view, C. sternite IX in dorsal view
Fig. 1 in Pachyrhynchus obumanuvu sp. nov., a new species of easter egg weevil (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini) from Mindanao Island, Philippines
Fig. 1. Pachyrhynchus obumanuvu sp. nov. - A, C, Holotype male; A. dorsal view, C. lateral view. B, D, Paratype female; B. dorsal view, D. lateral view
Fig. 3 in Pachyrhynchus obumanuvu sp. nov., a new species of easter egg weevil (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini) from Mindanao Island, Philippines
Fig. 3. Ecological notes about Pachyrhynchus obumanuvu sp. nov.: A. Habitat in Davao City, B. Procris urdanetensis Elmer, C. Elatostema sp., possible food plant, D. bitemarks on Elatostema sp., E. P. obumanuvu sp. nov perching on the leaves, F. P. obumanuvu sp. nov. on stem
Research Data supporting "Pachyrhynchus weevils use 3D photonic crystals with varying degrees of order to create diverse and brilliant displays"
<p>The research data is arranged into different folders containing the following files (.txt, .tif, .xlsx files; <em>italics</em>). This data and the descriptions below should be read in conjunction with the manuscript and “Supporting Info”, both of which may be found at the following DOI: 10.1002/smll.202200592.</p>
Research Data supporting "3D Tomographic Analysis of the Order-Disorder Interplay in the Pachyrhynchus congestus mirabilis Weevil"
<p>This data and the descriptions below should be read in conjunction with the manuscript and “Supporting Info”, both of which may be found at the following DOI: https://doi.org/10.1002/advs.202202145.</p>
How the Easter Egg Weevils got their spots: Phylogenomics reveals Müllerian mimicry in Pachyrhynchus (Coleoptera, Curculionidae)
<p>The evolutionary origins of mimicry in the Easter Egg weevil, <em>Pachyrhynchus</em>, have fascinated researchers since first noted more than a century ago by Alfred Russel Wallace. Müllerian mimicry, or mimicry in which two or more distasteful species look similar, is widespread throughout the animal kingdom. Given the varied but discrete color patterns in <em>Pachyrhynchus</em>, this genus presents one of the best opportunities to study the evolution of both perfect and imperfect mimicry. We analyzed more than 10,000 UCE loci using a novel partitioning strategy to resolve the relationships of closely related species in the genus. Our results indicate that many of the mimetic color patterns observed in sympatric species are due to convergent evolution. We suggest that this convergence is driven by positive frequency-dependent selection.</p>
How the Easter Egg Weevils got their spots: Phylogenomics reveals Müllerian mimicry in Pachyrhynchus (Coleoptera, Curculionidae)
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Fig. 4 in Comparative Phylogeography in the Taiwan-Luzon Volcanic Belt Indicates Fast Diversification History of Pachyrhynchus Weevils (Coleoptera: Curculionidae)
Fig. 4. Hierarchical Bayesian clustering analyses of three Pachyrhynchus weevils implemented in STRUCTURE under admixture model: (A) P. sarcitis, optimal K = 2 in subset i, ii, iv, v, vi and optimal K = 3 in subset iii; (B) P. nobilis, optimal K = 2 in each subset; (C) P. semperi, optimal K = 2 in subset i, and optimal K = 3 in subset ii. Barplots represent the probability that individual assigned to the genetic cluster.
Fig. 5 in Comparative Phylogeography in the Taiwan-Luzon Volcanic Belt Indicates Fast Diversification History of Pachyrhynchus Weevils (Coleoptera: Curculionidae)
Fig. 5. The best-fit demographic models of (A) Pachyrhynchus sarcitis, (B) P. nobilis and (C) P. semperi inferred from G-PhoCS.Topological assumption based on SNAPP population tree, and the following demographic parameters were estimated according to per-generation mutation rate μ = 2.9 × 10 − 9 and generation time g = 3. The width of the column represents the mean of effective population size (Ne), and the dashed line indicates divergence time (T: Thousand year). Migration rate (mtot) is not demonstrated because all value of mtot is not significant.
Fig. 6 in Comparative Phylogeography in the Taiwan-Luzon Volcanic Belt Indicates Fast Diversification History of Pachyrhynchus Weevils (Coleoptera: Curculionidae)
Fig. 6. Density plot of genealogical divergence index (gdi) of Pachyrhynchus sarcitis (A), P. nobilis (B), and P. semperi (C). The value of gdi> 0.7 supports as a distinct species, 0.2 <gdi <0.7 represents ambiguous species status and gdi <0.2 means populations belonged to the same species.The letters represent populations in the SNAPP trees (Fig. 3), and the detail information of gdi value of each island population is showed inTable 6.
Fig. 2 in Comparative Phylogeography in the Taiwan-Luzon Volcanic Belt Indicates Fast Diversification History of Pachyrhynchus Weevils (Coleoptera: Curculionidae)
Fig. 2. Concatenated SNPs trees of (A) Pachyrhynchus sarcitis, (B) P. nobilis, and (C) P. semperi constructed by GTR model in RAxML using concatenated SNPs data.The numbers on the branches indicate the bootstrap supports. Colorful boxes highlight populations from the same island group, and colorful bars represent each island population. Black dots denote the monophyletic lineage that are grouped by an island, and red dots denote the monophyletic lineage that are grouped by more than one island.
Fig. 3 in Comparative Phylogeography in the Taiwan-Luzon Volcanic Belt Indicates Fast Diversification History of Pachyrhynchus Weevils (Coleoptera: Curculionidae)
Fig. 3. Population trees of (A) Pachyrhynchus sarcitis, (B) P. nobilis, and (C) P. semperi inferred by Bayesian coalescent model in SNAPP, and probability distribution of all sampled tree was visualized by DensiTree. The number on the branch indicates the Bayesian posterior probability. Colorful boxes highlight the island populations from the same island group.The letters A to H were used in G-PhoCS and BPP analyses.
Fig. 1 in Comparative Phylogeography in the Taiwan-Luzon Volcanic Belt Indicates Fast Diversification History of Pachyrhynchus Weevils (Coleoptera: Curculionidae)
Fig. 1. Geographic distribution of Pachyrhynchus sarcitis, P. nobilis, and P. semperi in the Taiwan–Luzon volcanic belt.The three island groups are marked with different color series (green, blue, and brown), and each color on island corresponds to different populations in the analyses.
The Easter Egg Weevil (Pachyrhynchus) genome reveals syntenic patterns in Coleoptera across 200 million years of evolution
<p class="Body">Patterns of genomic architecture across insects remain largely undocumented or decoupled from a broader phylogenetic context. For instance, it is unknown whether translocation rates differ between insect orders. We address broad scale patterns of genome architecture across Insecta by examining synteny in a phylogenetic framework from open-source insect genomes. To accomplish this, we add a chromosome level genome to a crucial lineage, Coleoptera. Our assembly of the <i>Pachyrhynchus sulphureomaculatus </i>genome is the first chromosome scale genome for the hyperdiverse Phytophaga lineage and currently the largest insect genome assembled to this scale. The genome is significantly larger than those of other weevils, and this increase in size is caused by repetitive elements. Our results also indicate that, among beetles, there are instances of long-lasting (>200 Ma) localization of genes to a particular chromosome with few translocation events. While some chromosomes have a paucity of translocations, intra-chromosomal synteny was almost absent, with gene order thoroughly shuffled along a chromosome. This large amount of reshuffling within chromosomes with few inter-chromosomal events contrasts with patterns seen in mammals in which the chromosomes tend to exchange larger blocks of material more readily. To place our findings in an evolutionary context, we compared syntenic patterns across Insecta in a phylogenetic framework. For the first time, we find that synteny decays at an exponential rate relative to phylogenetic distance. Additionally, there are significant differences in decay rates between insect orders, this pattern was not driven by Lepidoptera alone which has a substantially different rate.</p>
The Easter Egg Weevil (Pachyrhynchus) genome reveals syntenic patterns in Coleoptera across 200 million years of evolution
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