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20 results for “Synbranchidae”
Fig. 3 in Molecular and cytogenetic analyses of cryptic species within the Synbranchus marmoratus Bloch, 1795 (Synbranchiformes: Synbranchidae) grouping: species delimitations, karyotypic evolution and intraspecific diversification
Fig. 3. Representative ideograms of the analyzed karyomorphs of Synbranchus marmoratus showing the heterochromatic blocks, as determined by C-banding, and hybridization patterns of ribosomal sites.
Fig. 1. A in Molecular and cytogenetic analyses of cryptic species within the Synbranchus marmoratus Bloch, 1795 (Synbranchiformes: Synbranchidae) grouping: species delimitations, karyotypic evolution and intraspecific diversification
Fig. 1. A map showing the Synbranchus marmoratus specimen collection sites. Numbers indicate the sample locality, whereas symbols represent the karyomorphs found at each locality.
Fig. 4. A in Molecular and cytogenetic analyses of cryptic species within the Synbranchus marmoratus Bloch, 1795 (Synbranchiformes: Synbranchidae) grouping: species delimitations, karyotypic evolution and intraspecific diversification
Fig. 4. A dendrogram representing the relationship between the sampled Synbranchus marmoratus specimens based on the mitochondrial 16S, COI and Cyt B genes. The colors represent each of the characterized karyomorphs, and the groups (IA, IB, IC, ID and II) used as references are shown on the right side. Bootstrap support (>50%) are given above the branches. Diploid numbers of the samples are given along the branches. 2n=46* Diploid number of Ophisternon aenigmaticum (Nirchio et al., 2011).
Fig. 4 in Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?
Fig. 4. Cluster analysis based on karyotypes and genome sizes. The vertical bars on the right-hand side of the figure illustrate the closeness of samples found in different rivers and appearing in the same branch of the cluster (cf. Fig. 3). Letters A-E indicate cytotypes described in Fig. 2.
Fig. 3 in Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?
Fig. 3. Nuclear DNA content per individual (pg, + 95% confidence interval) among the sampled fishes. Rectangles include individuals with the same karyotype and dotted lines within rectangles subdivide samples into groupings of individuals with similar nuclear DNA contents.
Fig. 2 in Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?
Fig. 2. Five different cytotypes found among the samples of Synbranchus marmoratus analyzed. A – from the samples coded as PR, PR, and MS; B – from the samples coded as 2 3 2 SP and SP; C – from the sample coded as PR; D – karyotype 2 3 1
Fig. 1 in Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?
Fig. 1. South America map showing the major river drainages. The detail show the collecting locations. The bold dashed line in the detail indicates the limit of the last great marine incursion into South America (from the south) at approximately five million years ago (modified from Frailey, 2002). The lighter dashed lines indicate the state-specific boundaries hosting the collecting locations. MS 1,2 = rio Miranda (state of Mato Grosso do Sul; 2n=46 and 2n=42); SP 1 = rio Mogi-Guaçu (state of São Paulo; 2n=44); SP 2 = rio Tietê (state of São Paulo; 2n=42); SP 3 = rio Paraná (state of São Paulo; 2n=42); PR 1 = ribeirão Água do Caixão (state of Paraná; 2n=46); PR = rio Tibagi (state of Paraná; 2n=42); PR = rio Paraná (state of Paraná; 2n=42).
FIGURE 3 in Monopterus ichthyophoides, a new species of scaled swamp eel (Teleostei: Synbranchiformes: Synbranchidae) from Mizoram, India
FIGURE 3. Cleared and stained gill arches of Monopterus ichthyophoides, PUCMF 3006, 180.8 mm, paratype, dorsal view. aCH, anterior ceratohyal; BB, basibranchial; BH, basihyal; BR, branchiostegal rays; CB, ceratobranchial; dHH, dorsal hypohyal; EB, epibranchial; PB, pharyngobranchial; pCH, posterior ceratohyal; UP4, upper pharyngeal toothplate 4.
FIGURE 1 in Monopterus ichthyophoides, a new species of scaled swamp eel (Teleostei: Synbranchiformes: Synbranchidae) from Mizoram, India
FIGURE 1. Holotype of Monopterus ichthyophoides, PUCMF 3005, 186.6 mm TL, Sawleng River, Mizoram, India, in lateral view.
FIGURE 4 in Monopterus ichthyophoides, a new species of scaled swamp eel (Teleostei: Synbranchiformes: Synbranchidae) from Mizoram, India
FIGURE 4. Live specimen of Monopterus ichthyophoides, PUCMF 3006, one of the paratypes, 30 July 2008, public well at Luangmual, Aizawl, Mizoram, India.
FIGURE 2 in Monopterus ichthyophoides, a new species of scaled swamp eel (Teleostei: Synbranchiformes: Synbranchidae) from Mizoram, India
FIGURE 2. Holotype of Monopterus ichthyophoides, PUCMF 3005, 186.6 mm TL. Head in lateral (a), dorsal (b) and ventral (c) view (arrows mark position of posterior naris in a and b and anterior naris in c) and preanal area of body in lateral view (d) to show scales (arrow marks position of vent).
FIGURE 1 in A new species of Hedruris Nitzsch, 1821 (Nematoda: Hedruridae) parasitic in eel Synbranchus marmoratus Bloch (Synbranchiformes: Synbranchidae) from Argentina, Neotropical Region
FIGURE 1. Hedruris anguila sp. nov. A. Anterior end of female, lateral view; B, C. Cephalic end of female, lateral view and dorsal view, respectively; D. Area rugosa with ventral longitudinal ridges in male, ventral view; E. Posterior end of male, lateral view; F. Spicule, lateral view.
FIGURE 3 in A new species of Hedruris Nitzsch, 1821 (Nematoda: Hedruridae) parasitic in eel Synbranchus marmoratus Bloch (Synbranchiformes: Synbranchidae) from Argentina, Neotropical Region
FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region).
FIGURE 2 in A new species of Hedruris Nitzsch, 1821 (Nematoda: Hedruridae) parasitic in eel Synbranchus marmoratus Bloch (Synbranchiformes: Synbranchidae) from Argentina, Neotropical Region
FIGURE 2. Hedruris anguila sp. nov. Female specimen. A. Tail showing caudal hook, ventral view; B. Posterior end showing the vulva, sublateral view; C. Egg.
Figure 6 from: Mar-Silva AF, Arroyave J, Díaz-Jaimes P (2022) The complete mitochondrial genome of the Mexican-endemic cavefish Ophisternon infernale (Synbranchiformes, Synbranchidae): insights on patterns of selection and implications for synbranchiform phylogenetics. ZooKeys 1089: 1-23. https://doi.org/10.3897/zookeys.1089.78182
Figure 6 Phylogenetic relationships of major synbranchiform lineages. Molecular phylogeny based on comparative mitochondrial PCGs from relevant available mitogenomes and the newly generated herein for O. infernale. Troglobitic cave-dwelling species are marked with an asterisk to distinguish them from surface-dwelling ones. Outgroup taxa not shown. Colored circles on nodes indicate degree of clade support as determined by bootstrap values.
Figure 3 from: Mar-Silva AF, Arroyave J, Díaz-Jaimes P (2022) The complete mitochondrial genome of the Mexican-endemic cavefish Ophisternon infernale (Synbranchiformes, Synbranchidae): insights on patterns of selection and implications for synbranchiform phylogenetics. ZooKeys 1089: 1-23. https://doi.org/10.3897/zookeys.1089.78182
Figure 3 Secondary structure of the 22 tRNA genes of the mitochondrial genome of O. infernale predicted by tRNAScan-SE 2.0.
Figure 4 from: Mar-Silva AF, Arroyave J, Díaz-Jaimes P (2022) The complete mitochondrial genome of the Mexican-endemic cavefish Ophisternon infernale (Synbranchiformes, Synbranchidae): insights on patterns of selection and implications for synbranchiform phylogenetics. ZooKeys 1089: 1-23. https://doi.org/10.3897/zookeys.1089.78182
Figure 4 Comparison (multiple sequence alignment) of the mtDNA control region of O. infernale with those of fellow teleosts Siniperca chuatsi and Cyprinion semiplotum. The alignment displays the three canonical domains distinguished by Termination Associated Sequences (TAS) of the upstream hypervariable region (in red), central conserved domain blocks (CSB-F, CSB-E, CSB-D) (in blue), and conserved sequence blocks of the downstream hypervariable region (CSB-1, CSB-2 and CSB-3) (in green).
Figure 5 from: Mar-Silva AF, Arroyave J, Díaz-Jaimes P (2022) The complete mitochondrial genome of the Mexican-endemic cavefish Ophisternon infernale (Synbranchiformes, Synbranchidae): insights on patterns of selection and implications for synbranchiform phylogenetics. ZooKeys 1089: 1-23. https://doi.org/10.3897/zookeys.1089.78182
Figure 5 Patterns of selection in mtDNA PCGs of synbranchiform fishes. Results from KA/KS ratio analysis on mitochondrial PCGs (x-axis) in synbranchiform fishes of the families Synbranchidae (a) and Mastacembelidae (b).
Figure 2 from: Mar-Silva AF, Arroyave J, Díaz-Jaimes P (2022) The complete mitochondrial genome of the Mexican-endemic cavefish Ophisternon infernale (Synbranchiformes, Synbranchidae): insights on patterns of selection and implications for synbranchiform phylogenetics. ZooKeys 1089: 1-23. https://doi.org/10.3897/zookeys.1089.78182
Figure 2 Results from analysis of Relative Synonymous Codon Usage (RSCU) of the mitochondrial genome of O. infernale. Codon families are plotted on the x-axis. The label for the 2, 4, or 6 codons that compose each family is shown in the boxes below the x-axis, and the colors correspond to those in the stacked columns. RSCU values are shown on the y-axis.
Figure 1 from: Mar-Silva AF, Arroyave J, Díaz-Jaimes P (2022) The complete mitochondrial genome of the Mexican-endemic cavefish Ophisternon infernale (Synbranchiformes, Synbranchidae): insights on patterns of selection and implications for synbranchiform phylogenetics. ZooKeys 1089: 1-23. https://doi.org/10.3897/zookeys.1089.78182
Figure 1 Annotated map of the mitochondrial circular genome of O. infernale. The outer ring corresponds to the H- (outermost) and L-strands, and depicts the location of PCGs (in black, except for ND6 which is encoded in the L-strand and is portrayed in red), the non-coding control region (in dark brown), tRNAs (in red), and rRNAs (in light brown). The inner ring (black sliding window) denotes GC content along the genome. Live specimen photograph taken in the Cenote Kancabchen (Homún, Yucatán), courtesy of cave diver Erick Sosa.
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