Find research datasets worth reusing

Figure 5 in Cytological evidence for automictic thelytoky in parthenogenetic oribatid mites (Acari, Oribatida): Synaptonemal complexes confirm meiosis in Archegozetes longisetosus

Figure 5 Archegozetes longisetosus. Peripheral oocyte of a tritonymph, showing oocyte extension and dense bundle of microtubuli passing the vicinity of the nuclear envelope. Nuclear envelope with numerous nuclear pores. Abbreviations: MT: microtubuli, NP: nuclear pores.

Figure 4 in Cytological evidence for automictic thelytoky in parthenogenetic oribatid mites (Acari, Oribatida): Synaptonemal complexes confirm meiosis in Archegozetes longisetosus

Figure 4 Archegozetes longisetosus.Ovary of a 5 day old tritonymph: a – Overview, parasagittal plane; b – detail of central region; c – detail

Figure 3 in Cytological evidence for automictic thelytoky in parthenogenetic oribatid mites (Acari, Oribatida): Synaptonemal complexes confirm meiosis in Archegozetes longisetosus

Figure 3 Archegozetes longisetosus.Synaptonemal complexes in oocytes of a two day old tritonymph: a-c: Three pachytene nuclei; d-g details: Synaptonemal complexes in longitudinal (d), (e), and transversal (f), (g) section. Abbreviations: CE: central element, LE: lateral element, SC: synaptonemal complex, TE: transversal element.

Figure 2 in Cytological evidence for automictic thelytoky in parthenogenetic oribatid mites (Acari, Oribatida): Synaptonemal complexes confirm meiosis in Archegozetes longisetosus

Figure 2 Archegozetes longisetosus.Germ cells in meiotic prophase of a two day old tritonymph: a – Pachytene cell with SC attached to the nuclear envelope; b – putative later stage with prominent nucleoli, from more peripheral region of the ovary. Abbreviations: AP: attachment

Figure 6 in Cytological evidence for automictic thelytoky in parthenogenetic oribatid mites (Acari, Oribatida): Synaptonemal complexes confirm meiosis in Archegozetes longisetosus

Figure 6 Archegozetes longisetosus: a – Vitellogenetic oocyte from the ovary of an adult female; b – Nuclear envelope with numerous nuclear

Figure 1 in Cytological evidence for automictic thelytoky in parthenogenetic oribatid mites (Acari, Oribatida): Synaptonemal complexes confirm meiosis in Archegozetes longisetosus

Figure 1 Archegozetes longisetosus.Overview of the arrangement of germ cells and somatic tissue in the ovary of a two day old tritonymph: a – Rostro-medially; b – centrally in the ovary. Abbreviations: BL: basal lamina, NP: nuclear pores, OE: oocyte extension, SC: synaptonemal complex, ST: somatic tissue.

Figure 2 in Molecular evolutionary trends and biosynthesis pathways in the Oribatida revealed by the genome of Archegozetes longisetosus

Figure 2 Comparisons and annotations of the official gene set (OGS) of Archegozetes longisetosus.a – Number of gene models of the mites compared to other mites, chelicerates and the fruit fly (Grbić et al., 2011; Cao et al., 2013; dos Santos et al., 2015; Gulia-Nuss et al., 2016; Schwager et al., 2017). b – Non-linear multidimensional scaling plot (NMDS) of clustered orthogroups based on the OGS or predicted proteins

Figure 3 in Molecular evolutionary trends and biosynthesis pathways in the Oribatida revealed by the genome of Archegozetes longisetosus

Figure 3 Orthology comparison and phylogenetic placement of Archegozetes longisetosusamong other chelicerates. a – Maximum likelihood phylogeny based on concatenation of 1,121 orthologs showing the mites phylogenetic position within the Oribatida (all nodes have 100%

Figure 7 in Molecular evolutionary trends and biosynthesis pathways in the Oribatida revealed by the genome of Archegozetes longisetosus

Figure 7 Horizontal gene transfer (HGT) and implications for the feeding biology of Archegozetes longisetosus. a – Blob-plot of the long- read genome assembly contigs plotting the read coverage against GC proportion [%]. Contigs are colored according to the taxonomic order

Figure 6 in Molecular evolutionary trends and biosynthesis pathways in the Oribatida revealed by the genome of Archegozetes longisetosus

Figure 6 The sensory systems of Archegozetes longisetosusand phylogenetic analysis of selected photoreceptor and chemosensory genes. a – Scanning electron micrograph (SEM) showing the end of tarsus on Archegozetes′ first leg. Images shows normal setae, but also modified chemosensory setae, namely eupathidia, both paired (p) and single (s), as well as an omega-3 solenidium. SEM picture courtesy of Michael Heethoff. b – Phylogeny and classification of opsin genes across the Metazoa, including those of several Chelicerata. The tree was constructed using a maximum likelihood approach (LG+F+R4 model) and rooted with a jelly fish opsin. Archegozetes sequences are depicted in red, Drosophila in turquoise; branch length unit is substitutions per site. c – Maximum likelihood phylogeny of ionotropic receptors and ionotropic glutamate receptors (LG+F+R6 model) of Archegozetes (Along), Dinothrombium (Dt), Leptothrombidium (Ld), Tetranychus (Tu) and Drosophila (Dmel). IR25a/IR8a and antenna/1 st leg IRs contain genes with known chemosensory function in Drosophila. The tree was rooted to the middle point; Archegozetes sequences are depicted in red, Drosophila in turquoise; branch length unit is substitutions per site. Bootstrap values can be found in the supplementary Figure S13. d – Maximum likelihood phylogenetic tree of gustatory receptors (JTT+F+R6 model) of Archegozetes(Along), Ixodes (Is), Tropilaelaps (Tm), Metaseiulus (Mocc) and Drosophila (Dmel). The tree was rooted to the middle point; Archegozetessequences are depicted in red, Drosophila in turquoise; branch length unit is substitutions per site. Bootstrap values can be found in the supplementary Figure S14. e – Combined image of volume rendering (grey) and reconstructed nervous system of Archegozetesin dorsal view. Color-code corresponds to different parts of the nervous system, as depicted in the legend. The blue structure in the middle of the synganglion is the part of the esophagus which penetrates the synganglion. Scale bar: 200 µm. Image courtesy of Sebastian Schmelzle based

Figure 1 in Molecular evolutionary trends and biosynthesis pathways in the Oribatida revealed by the genome of Archegozetes longisetosus

Figure 1 The mite, Archegozetes longisetosus, in its phylogenetic and natural environment. a – Species tree of selected oribatid mites of the family Trhypochthoniidae based on phylogenetic analyses and divergence time estimates (Heethoff et al., 2011b). b – Two adults and one tritonymph of Archegozeteson a piece of leaf litter. The algae growing on the leaf serves as a food source for the mites. c – Habitus of an adult mite based on a surface rendering of a µCT-scan reconstruction. Image courtesy of Sebastian Schmelzle. d – Hi-C interaction matrix maps of the nine Archegozeteschromosomes. The corrected contacts are indicated by the color scale on the right from red (high density) to blue (low density)

Figure 8 in Molecular evolutionary trends and biosynthesis pathways in the Oribatida revealed by the genome of Archegozetes longisetosus

Figure 8 Reconstruction of the biosynthetic pathway leading to monoterpenes in Archegozetes longisetosus. a – Representative gas chro- matogram of the mite′ gland content; in order of retention time: 2-hydroxy-6-methyl-benzaldehyde (2,6-HMBD), neral (( Z)-3,7-dimethylocta- 2,6-dienal) neryl formate (( Z)-3,7-dimethyl-2,6-octadienyl formate), tridecane, 3-hydroxybenzene-1,2-dicarbaldehyde (γ-acaridial). Further alkanes/alkenes (pentadec-7-ene, pentadecane, heptadeca-6,9-diene, heptadec-8-ene, heptadecane) are not shown. Monoterpenes are marked

Figure 5 in Molecular evolutionary trends and biosynthesis pathways in the Oribatida revealed by the genome of Archegozetes longisetosus

Figure 5 The genomic organization of the Hox genes and life-stage specific expression patters of developmental genes in Archegozetes longisetosus. a – Schematic of the genomic region enclosing the ArchegozetesHox cluster. The genomic organization of the Hox cluster is collinear,

Figure 4 in Molecular evolutionary trends and biosynthesis pathways in the Oribatida revealed by the genome of Archegozetes longisetosus

Figure 4 Comparison of repeat content estimations and transposable element (TE) landscape of Archegozetes longisetosus. a – Repetitive element categories of Archegozetes based on the results from RepeatModeler and MITETracker. LINE= long interspersed nuclear element, LTR= long terminal repeat. b – Comparison of total repetitive content among Archegozetes, other model chelicerates and the fly. All values are from the respective genome paper of the species, except for the fly. c – Repeat divergence plot showing TE activity through time for the major TE superfamilies of Archegozetes.Transposable elements with a low divergence from the consensus were recently active, while TEs diverging

FIGURE 1 in Is 7-Hydroxyphthalide A Natural Compound Of Oil Gland Secretions? - Evidence From Archegozetes Longisetosus (Acari, Oribatida)

FIGURE 1: Gas chromatographic pattern of components, 24 hours after extraction, stored at -20°C. This pattern is identical to chromatograms taken directly after extraction. The amount of the internal standard (6-methyl-5-heptene-2-one) corresponds to 5ng. Peaks: a: 2,6-HMBD; b: neral; c: geranial; d: neryl formate; e: γ-acaridial; f: tridecane; h: tetradecane (this in an artifact of unknown origin); i: pentadecene; j: pentadecane; k: heptadecadiene; l: heptadecene; m: heptadecane. The * peaks arise from contaminations of the capillary column.

FIGURE 4 in Is 7-Hydroxyphthalide A Natural Compound Of Oil Gland Secretions? - Evidence From Archegozetes Longisetosus (Acari, Oribatida)

FIGURE 4: Comparison of amounts of γ-acaridial and 7-hydroxyphthalide during the 24 hour time course at 23°C. When both are com-

FIGURE 3 in Is 7-Hydroxyphthalide A Natural Compound Of Oil Gland Secretions? - Evidence From Archegozetes Longisetosus (Acari, Oribatida)

FIGURE 3: Mass spectra of γ-acaridial (above) and 7-hydroxyphthalide (below), both with M+ at m/z 150. Note differences at peaks m/z 76/77, m/z 104/105, and relative differences at m/z 122.

FIGURE 2 in Is 7-Hydroxyphthalide A Natural Compound Of Oil Gland Secretions? - Evidence From Archegozetes Longisetosus (Acari, Oribatida)

FIGURE 2: Gas chromatographic patterns measured from a raw extract stored at 23°C, 1 hour, 4 hours and 24 hours after extraction. Peak

opencc-by-nd-4.0Dec 2013View details →

FIGURE 2 in The 20 Anniversary Of A Model Mite: A Review Of Current Knowledge About Archegozetes Longisetosus (Acari, Oribatida)

FIGURE 2: Molting aggregation of individuals from all active instars (larvae, proto-, deuto-, tritonymphs and adults) of Archegozetes longisetosus ran in a laboratory culture.