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14 results for “Ageneiosus”
Fig. 3. Metacentric chromosomal pair 1 in The role of chromosomal fusion in the karyotypic evolution of the genus Ageneiosus (Siluriformes: Auchenipteridae)
Fig. 3. Metacentric chromosomal pair 1 (a) stained with Giemsa, (b) C-banded and (c) hybridized with [TTAGGG]n. The schematic illustration in (d) represents the possible fusion rearrangement which originated this pair.
Fig. 2 in The role of chromosomal fusion in the karyotypic evolution of the genus Ageneiosus (Siluriformes: Auchenipteridae)
Fig. 2. Karyotype of Ageneiosus inermis hybridized with (a) 5S rDNA (digoxigenin, red) and 18S rDNA (FITC, green). Metaphases of Ageneiosus inermis hybridized with (b) [TTAGGG]n telomeric sequence and with (d) [GATA]n repeats. The arrows indicate the metacentric chromosomal pair 1, which was originated by fusion.
Fig. 1 in The role of chromosomal fusion in the karyotypic evolution of the genus Ageneiosus (Siluriformes: Auchenipteridae)
Fig. 1. Karyotypes of Ageneiosus inermis stained with Giemsa (a) and sequentially C-banded (b). The AgNORs bearing chromosomes pair is presented in the box.
Fig. 4 in Ageneiosus uranophthalmus, a new species of auchenipterid catfish (Osteichthyes: Siluriformes) from river channels of the central Amazon basin, Brazil
Fig. 4. Drainage map of northern South America illustrating the geographic distribution of Ageneiosus uranophthalmus. Type locality represented by triangle. Some symbols represent more than one locality or lot of specimens. Base map by Marilyn Weitzman.
Fig. 1 in Ageneiosus uranophthalmus, a new species of auchenipterid catfish (Osteichthyes: Siluriformes) from river channels of the central Amazon basin, Brazil
Fig. 1. Ageneiosus uranophthalmus, holotype, INPA 8945, 92.1 mm SL, Brazil, Amazonas State, Itacoatiara, rio Amazonas below Paraná da Eva, in lateral (a), dorsal (b), and ventral (c) views.
Fig. 2 in Ageneiosus uranophthalmus, a new species of auchenipterid catfish (Osteichthyes: Siluriformes) from river channels of the central Amazon basin, Brazil
Fig. 2. Ageneiosus uranophthalmus, paratype, INPA 22723, 192.5 mm SL. Ventral view of the head.
Fig. 3 in Ageneiosus uranophthalmus, a new species of auchenipterid catfish (Osteichthyes: Siluriformes) from river channels of the central Amazon basin, Brazil
Fig. 3. Ageneiosus uranophthalmus, paratype, INPA 22723, 192.5 mm SL, nuptial male in lateral view.
F I G U R E 2 in A molecular assessment of species diversity in Tympanopleura and Ageneiosus catfishes (Auchenipteridae: Siluriformes)
F I G U R E 2 Bayesian phylogenetic tree of Ageneiosus spp. and Tympanopleura spp. Bayesian posterior probabilities (PP;>80) are shown on the branches. The vertical line in the tree shows the transition point from Yule to a coalescent branching process as estimated by the single-threshold model in the a generalised mixed yule-coalescent model (GYMC) test
F I G U R E 1 in A molecular assessment of species diversity in Tympanopleura and Ageneiosus catfishes (Auchenipteridae: Siluriformes)
F I G U R E 1 Map of the central Amazon Basin showing the distribution of tissue sampling localities (Supporting Information Table S1) (a) Species of Tympanopleura:, Tympanopleura atronasus;, Tympanopleura brevis;, Tympanopleura longipinna;, Tympanopleura piperata;, Tympanopleura rondoni;, Tympanopleura sp. (b) Species of Ageneiosus:, Ageneiosus lineatus;, Ageneiosus magoi;, Ageneiosus polystictus;, Ageneiosus akamai;, Ageneiosus dentatus;, Ageneiosus intrusus;, Ageneiosus uranophthalmus;, Ageneiosus vittatus;, Ageneiosus inermis;, Ageneiosus ucayalensis;, Ageneiosus militaris;, Ageneiosus pardalis (based on published results but not sampled). Orinoco and other non-Amazon drainages depicted in the overview map (bottom right), some symbols represent more than one locality
T A B L E 1 in A molecular assessment of species diversity in Tympanopleura and Ageneiosus catfishes (Auchenipteridae: Siluriformes)
T A B L E 1 Mean pairwise genetic Kimura two-parameter percentage distance among species of Tympanopleura spp. (1–6). Mean intraspecific values in bold; below the diagonal, interspecific values; above diagonal, corresponding standard error value
F I G U R E 3 in A molecular assessment of species diversity in Tympanopleura and Ageneiosus catfishes (Auchenipteridae: Siluriformes)
F I G U R E 3 Haplotype network using median joining; colours of symbols according to morphological species. Circle size is proportional to the number of individuals and each bar represent one mutation event. (a), Species of Tympanopleura:, Tympanopleura atronasus;, Tympanopleura brevis;, Tympanopleura longipinna;, Tympanopleura piperata;, Tympanopleura rondoni;, Tympanopleura sp. (b) Species of Ageneiosus:, Ageneiosus inermis;, Ageneiosus lineatus;, Ageneiosus magoi;, Ageneiosus militaris;, Ageneiosus pardalis;, Ageneiosus polystictus;, Ageneiosus akamai;, Ageneiosus dentatus;, Ageneiosus intrusus;, Ageneiosus ucayalensis;, Ageneiosus uranophthalmus;, Ageneiosus vittatus
FIGURE 2 in Three new species of Demidospermus (Monopisthocotyla: Dactylogyridae) parasitizing Ageneiosus inermis (Siluriformes: Auchenipteridae) from western Amazon, Brazil
FIGURE 2. Demidospermus bifurcatus sp. nov. from Ageneiosus inermis. A. Copulatory complex, ventral view; B. Vagina; C. Ventral bar; D. Dorsal bar; E. Ventral anchor; F. Dorsal anchor; G. Hook. Scale bars: A, C, D = 30 µm; B, 10 µm; E, F = 20 µm; B, G =10 µm.
FIGURE 3 in Three new species of Demidospermus (Monopisthocotyla: Dactylogyridae) parasitizing Ageneiosus inermis (Siluriformes: Auchenipteridae) from western Amazon, Brazil
FIGURE 3. Demidospermus takemotoi sp. nov. from Ageneiosus inermis. A. Copulatory complex ventral view; B. Vagina; C. Ventral bar; D, E. Dorsal bar; F. Ventral anchor; G. Dorsal anchor; H. Hook pairs 1–4, 6,7; I. Hook pair 5. Scale bars: A = 50 µm; B, 25 μm; C–G = 20 µm; H, I = 10µm.
FIGURE 1 in Three new species of Demidospermus (Monopisthocotyla: Dactylogyridae) parasitizing Ageneiosus inermis (Siluriformes: Auchenipteridae) from western Amazon, Brazil
FIGURE 1. Demidospermus juruaensis sp. nov. from Ageneiosus inermis. A. Total ventral view (composite); B. Copulatory complex ventral view; C. Ventral bar; D, E. Dorsal bar; F. Ventral anchor; G. Dorsal anchor; H. Hook pairs 1–4, 6–7; I. Hook pair 5. Scale bars: A = 300 µm; B = 50 µm; C–I = 30 µm.
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