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24 results for “Catostomidae”
Data from: The <em>Carpiodes</em> conundrum: Molecular hypothesis testing informs conservation applications for Carpsuckers (Catostomidae: Carpiodes) in Texas and beyond
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Data from: Influence of introgression and geological processes on phylogenetic relationships of western North American mountain suckers (Pantosteus, Catostomidae)
Intense geological activity caused major topographic changes in Western North America over the past 15 million years. Major rivers here are composites of different ancient rivers, resulting in isolation and mixing episodes between river basins over time. This history influenced the diversification of most of the aquatic fauna. The genus Pantosteus is one of several clades centered in this tectonically active region. The eight recognized Pantosteus species are widespread and common across southwestern Canada, western USA and into northern Mexico. They are typically found in medium gradient, middle-elevation reaches of rivers over rocky substrates. This study (1) compares molecular data with morphological and paleontological data for proposed species of Pantosteus, (2) tests hypotheses of their monophyly, (3) uses these data for phylogenetic inferences of sister-group relationships, and (4) estimates timing of divergence events of identified lineages. Using 8055 base pairs from mitochondrial DNA protein coding genes, Pantosteus and Catostomus are reciprocally monophyletic, in contrast with morphological data. The only exception to a monophyletic Pantosteus is P. columbianus whose mtDNA is closely aligned with C. tahoensis because of introgression. Within Pantosteus, several species have deep genetic divergences among allopatric sister lineages, several of which are diagnosed and elevated to species, bringing the total diversity in the group to 11 species. Conflicting molecular and morphological data may be resolved when patterns of divergence are shown to be correlated with sympatry and evidence of introgression.
Figure 8. A in Redescription of 'Amyzon' brevipinne and remarks on North American Eocene catostomids (Cypriniformes: Catostomidae)
Figure 8. A grouped plot of maximum total length of extant and fossil catostomids. Arrow indicates data point for Wilsonium brevipinne, the smallest catostomid among both extant and Eocene catostomids. The size of the circular data markers corresponds to their value. Total lengths (TL) of the majority of extant catostomids are from Jacquemin & Doll (2015), that of Myxocyprinus asiaticus is inferred from Fang (1934), and those of Eocene taxa are from specimen examination and measurements (Supplemental material, Table S1). When TL is not available, standard length (SL) measurements of fossil taxa were converted to TL using the SL/TL ratio observed in Amyzon kishenehnicum (Supplemental material, Table S2).
Figure 7 in Redescription of 'Amyzon' brevipinne and remarks on North American Eocene catostomids (Cypriniformes: Catostomidae)
Figure 7. Amyzon sp. from the Eocene Klondike Mountain Formation, Republic, Washington, USA. UALVP 14932, latex peel of USNM V 8117. Anterior is to the right. Scale bar = 10 mm.
Figure 4 in Redescription of 'Amyzon' brevipinne and remarks on North American Eocene catostomids (Cypriniformes: Catostomidae)
Figure 4. Comparison of the frontal bones of Wilsonium, Amyzon and Plesiomyxocyprinus. A, frontal of Wilsonium brevipinne from the Eocene Allenby Formation, Blakeburn Mine, British Columbia, Canada, UALVP 12610; B, frontal of Plesiomyxocyprinus arratiae from the Eocene Huadian Formation, Huadian, Jilin, China, IVPP V 15711.29 (images modified from Liu & Chang 2009, fig. 2a, b); C, frontal of Amyzon aggregatum from the Eocene of Horsefly, British Columbia, Canada, UALVP 32931. A, B, dorsal view; C, medial view. Anterior is to the top. Abbreviations: fpf, fronto-parietal fontanelle; obp, orbital process of frontal; on, orbital notch of frontal. Scale bars = 5 mm.
Figure 5 in Redescription of 'Amyzon' brevipinne and remarks on North American Eocene catostomids (Cypriniformes: Catostomidae)
Figure 5. Disarticulated bones and reconstructions of Wilsonium brevipinne from the Eocene Allenby Formation. A, C, anterior to the left; B, D–F, anterior to the right. C and D in medial view; A and C in posteroventral view; and the rest in lateral view. A, pharyngeal bone and teeth, UALVP 31585a; A', line drawing of pharyngeal bone and teeth based on UALVP 31585a; B, opercle, UALVP 12796; C, interopercle, UALVP 12616; D, vomer; ROM 11161a; E, caudal skeleton, ROM 11161a; E', line drawing of caudal skeleton, ROM 11161a; F, mandible including dentary, articular, and retroarticular, ROM 11161. Abbreviations: aa, anguloarticular; aaf, anguloarticular fossa for articulation with the quadrate; arp, auricular process of opercle; avp, anteroventral process; cc, compound centrum of caudal skeleton; cp, coronoid process of dentary; den, dentary; emp, preethmoid process; ep, epural; gr, gnathic ramus of dentary; hyp1–5, hypural 1 through 5; opa, opercular arm; opf, opercular fossa; pls, pleurostyle; pt, pharyngeal teeth; r4, rib 4; ra, retroarticular. Scale bars = 5 mm.
Figure 6 in Redescription of 'Amyzon' brevipinne and remarks on North American Eocene catostomids (Cypriniformes: Catostomidae)
Figure 6. Phylogenetic position of Wilsonium brevipinne. Strict consensus of 106/74/5 equally most parsimonious cladograms (all of a similar tree topology) resulting from the parsimonybased analyses of a matrix of 71 taxa and 157 characters using the heuristic search of PAUP 4a169 (Supplemental material 3), and the traditional and new technology searches of TNT 1.5, respectively. The three equally most parsimonious cladogram have 812/811/811 steps, respectively, all with Consistency Index (CI) = 0.38 and Retention Index (RI) = 0.78. Numbers above branches indicate Bremer support (TNT). Wilsonium brevipinne is resolved as the most basal linage of the family Catostomidae with strong support.
Figure 3. A in Redescription of 'Amyzon' brevipinne and remarks on North American Eocene catostomids (Cypriniformes: Catostomidae)
Figure 3. A juvenile or young adult and skulls of Wilsonium brevipinne from the Eocene Allenby Formation, Blakeburn Mine, British Columbia, Canada. A, juvenile or young adult, UALVP 12159; B, skull of UALVP 12658; C, line drawing of composite skull based on UALVP 12159 and UALVP 12658. Arrows indicate the frontal bones. Abbreviations: aa, anguloarticular; c1–4, the space for centra 1 through 4; d, dentary; e, ethmoid; fr, frontal; hm, hyomandibular; iob, infraorbitals, iob 1 (lacrimal) through iob 5 numbered from anterior to posterior; iop, interopercle; ke, kinethmoid; le, lateral ethmoid; m, maxilla; nc, neural complex; ns4, neural spine of the 4th vertebra; op, opercular; p, palatine; pa, parietal; pm, premaxilla; pop, preopercle; pt, pterotic; q, quadrate; r4, the 4th rib or rib of the 4th vertebra (also known as outer arm of os suspensorium in some taxa); ra, retroarticular; so, supraorbital; soc, supraoccipital; sop, sub-opercle; sp, sphenoid. Scale bars: A = 10 mm; B = 5 mm.
Figure 1 in Redescription of 'Amyzon' brevipinne and remarks on North American Eocene catostomids (Cypriniformes: Catostomidae)
Figure 1. Terminology and measurement of the opercle and pelvic bones. A, lateral and B, medial views of an opercle; C, dorsal view of a pelvic bone. Anterior to the left. Abbreviations: aup, auricular process of opercle; avc, anteroventral process; ip, ischial process; opa, opercular arm; opf, opercular fossa; OPH, opercle height; OPW, opercle width; PFL, pelvic fork length; PL, pelvic bone length; ps, pelvic symphysis; PSL, pelvic splint length; psp, pelvic splint; pst, pelvic strut.
Figure 2 in Redescription of 'Amyzon' brevipinne and remarks on North American Eocene catostomids (Cypriniformes: Catostomidae)
Figure 2. The holotype (CMNFV 6189) of Wilsonium brevipinne from the Eocene Allenby Formation, probably from the Pleasant Valley locality, British Columbia, Canada. Arrow indicates the frontal bone. Scale bar = 10 mm.
FIGURE 5 in A new genus for the Blackfin Sucker, Thoburnia atripinnis (Cypriniformes: Catostomidae)
FIGURE 5. Ventral view of right pectoral fins of A. Thoburnia rhothoeca, AUM 61433, 94.7 mm SL and B. Vexillichthys n. gen. atripinnis, AUM 12812, 133.7 mm SL. Unbranched pectoral fin rays numbered with lowercase Roman numerals and first two branched rays numbered with Arabic numerals. The specimen in B is a large, nuptial female and pads are present on all four of the numbered rays with even some thickening on the third branched ray (numbers are approximately in the center of the pads). Photos by J.W. Armbruster. Scale = 1 cm.
FIGURE 4 in A new genus for the Blackfin Sucker, Thoburnia atripinnis (Cypriniformes: Catostomidae)
FIGURE 4. Dorsal view of crania of A. Hypentelium nigricans, AUM 86410, 259.5 mm SL, B. Thoburnia rhothoecum, AUM 86411, and C. Vexillichthys n. gen. atripinnis, AUM 86412. 109.7 mm SL. DE—dermethmoid (lines are to a lateral lamina), F—frontal, FPF—frontoparietal fenestra, LE—lateral ethmoid (lines are to the base of the bone), and SOC—supraorbital crest (lines are to a lateral lamina). Photos by J.W. Armbruster. Scale = 1 cm.
Data from: Unraveling historical introgression and resolving phylogenetic discord within Catostomus (Osteichthys: Catostomidae)
Background: Porous species boundaries can be a source of conflicting hypotheses, particularly when coupled with variable data and/or methodological approaches. Their impacts can often be magnified when non-model organisms with complex histories of reticulation are investigated. One such example is the genus Catostomus (Osteichthys, Catostomidae), a freshwater fish clade with conflicting morphological and mitochondrial phylogenies. The former is hypothesized as reflecting the presence of admixed genotypes within morphologically distinct lineages, whereas the latter is interpreted as the presence of distinct morphologies that emerged multiple times through convergent evolution. We tested these hypotheses using multiple methods, to including multispecies coalescent and concatenated approaches. Patterson's D-statistic was applied to resolve potential discord, examine introgression, and test the putative hybrid origin of two species. We also applied naïve binning to explore potential effects of concatenation. Results: We employed 14,007 loci generated from ddRAD sequencing of 184 individuals to derive the first highly supported nuclear phylogeny for Catostomus. Our phylogenomic analyses largely agreed with a morphological interpretation,with the exception of the placement of Xyrauchen texanus, which differs from both morphological and mitochondrial phylogenies. Additionally, our evaluation of the putative hybrid species C. columbianus revealed a lack introgression and instead matched the mitochondrial phylogeny. Furthermore, D-statistic tests clarified all discrepancies based solely on mitochondrial data, with agreement among topologies derived from concatenation and multispecies coalescent approaches. Extensive historic introgression was detected across six species-pairs. Potential endemism in the Virgin and Little Colorado Rivers was also apparent, and the former genus Pantosteus was derived as monophyletic, save for C. columbianus. Conclusions: Complex reticulated histories detected herein support the hypothesis that introgression was responsible for conflicts that occurred within the mitochondrial phylogeny, and explains discrepancies found between it and previous morphological phylogenies. Additionally, the hybrid origin of C. columbianus was refuted, but with the caveat that more fine-grain sampling is still needed. Our diverse phylogenomic approaches provided largely concordant results, with naïve binning useful in exploring the single conflict. Considerable diversity was found within Catostomus across southwestern North America, with two drainages [Virgin River (UT) and Little Colorado River (AZ)] reflecting unique composition.
Figure 5 in The historical biogeography of the southern group of the sucker genus Moxostoma (Teleostei: Catostomidae) and the colonization of central Mexico
Figure 5. Ancient scenarios that determined the evolution and the current biegeographic pattern of the southern group. A, northern scenario:, Mapimi Bolson;, Mayran–Viesca periodic lakes;, Rıo Bravo fault zone;, Conchos Valley;, Cuatrocienegas Basin;, San Juan sub-basin;, ancient connections;, Sierra Madre Occidental;, Sierra Madre Oriental; and, Trans-Mexican Volcanic Belt. B, central–western scenario:, Oblatos Canyon;, ancient Chapala Lake (previous Late Pliocene–Early Pleistocene);, modern Chapala Lake;, Zacoalco-Ameca palaeolake;, faulting triple-rift system. ChR, Chapala rift; CR, Colima rift; TZR, Tepic-Zacoalco rift.
Figure 4 in The historical biogeography of the southern group of the sucker genus Moxostoma (Teleostei: Catostomidae) and the colonization of central Mexico
Figure 4. Dispersal–extinction–cladogenesis (DEC) analysis of the southern group based on H2 under M2. Blue lines indicate vicariance events; white arrows indicate dispersal events.
Figure 3 in The historical biogeography of the southern group of the sucker genus Moxostoma (Teleostei: Catostomidae) and the colonization of central Mexico
Figure 3. Chronograms for the southern group based on relaxed-clock Bayesian Markov chain Monte Carlo (MCMC) methods performed in BEAST. Error bars on nodes indicate 95% highest posterior densities around the mean dates. A, phylogenetic hypothesis of the southern group based on H1. B, phylogenetic hypothesis of the southern group based on H2.
Figure 2 in The historical biogeography of the southern group of the sucker genus Moxostoma (Teleostei: Catostomidae) and the colonization of central Mexico
Figure 2. Pruned phylogenetic hypothesis of the southern group based on cytochrome b, inferred with maximum likelihood (ML). Node values above branches correspond to bootstrap ML support; node values below branches correspond to Bayesian posterior probabilities. GSD, Gulf of Mexico slope drainages; PSD, Pacific slope drainages.
Figures 1–10 in Dactylogyrus Pisolabrae N. Sp. (Monogenoidea: Dactylogyridae) Parasitizing The Pealip Redhorse, Moxostoma Pisolabrum (Teleostei: Catostomidae), From Oklahoma, U.S.A.
Figures 1–10. Line drawings of Dactylogyrus pisolabrae n. sp. (drawings are of the holotype, HWML 216232, unless otherwise specified). (1) Whole mount (ventral). (2) Dorsal anchor. (3) Dorsal bar. (4) Ventral anchor (4A). (5) Ventral bar. (6) Hook. (7) Male copulatory organ. (8) Accessory piece. (9) Male copulatory organ (HWML 216233). (10) Accessory piece (HWML 216233).
Data from: Influence of introgression and geological processes on phylogenetic relationships of western North American mountain suckers (Pantosteus, Catostomidae)
Open the record for dataset details and reuse information.
Data from: Unraveling historical introgression and resolving phylogenetic discord within Catostomus (Osteichthys: Catostomidae)
Open the record for dataset details and reuse information.
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