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41 results for “Hypoplectrus”
Video of the Ecosur Hamlet, Hypoplectrus ecosur, swimming underwater at Contoy Island, Yucatan, Mexico
<p>Video of the Ecosur Hamlet, Hypoplectrus ecosur, swimming underwater at Contoy Island, Yucatan, Mexico, filmed by Bruce Carlson.</p>
Underwater video of Hypoplectrus aff. puella in Liberte Bay, Haiti
<p>Underwater video of Hypoplectrus aff. puella in Liberte Bay, Haiti.To be described in upcoming article in JOSF.</p>
Data from: Genomic atolls of differentiation in coral reef fishes (Hypoplectrus spp, Serranidae)
Because the vast majority of species are well-diverged, relatively little is known about the genomic architecture of speciation during the early stages of divergence. Species within recent evolutionary radiations are often minimally diverged from a genomic perspective, and therefore provide rare opportunities to address this question. Here, we leverage the hamlet radiation (Hypoplectrus spp, brightly colored reef fishes from the tropical western Atlantic) to characterize genomic divergence during the early stages of speciation. Transect surveys and spawning observations in Belize, Honduras, and Panama confirm that sympatric barred (H. puella), black (H. nigricans) and butter (H. unicolor) hamlets are phenotypically distinct and reproductively isolated, although hybrid spawnings and individuals with intermediate phenotypes are seen on rare occasions. A survey of approximately 100,000 restriction-site associated SNPs in 126 samples from the three species across the three replicate populations reveals extremely slight genome-wide divergence among species (Fst=0.0038), indicating that ecomorphological differences and functional reproductive isolation are maintained in sympatry in a backdrop of extraordinary genomic similarity. Nonetheless, a very small proportion of SNPs (0.05% on average) are identified as Fst outliers among sympatric species. Remarkably, a single SNP is identified as an outlier in repeated populations for the same species pair. A mini-contig assembled de novo around this SNP falls into the genomic region containing the HoxCa10 and HoxCa11 genes in 10 teleost species, suggesting an important role for Hox gene evolution in this radiation. This finding, if confirmed, would provide a better understanding of the links between micro- and macroevolutionary processes.
FIGURE 18 in A review of the Caribbean hamlets (Serranidae, Hypoplectrus) with description of two new species
FIGURE 18. Distribution of the Maya hamlet, Hypoplectrus maya, and the Tan hamlet, H. randallorum. Based on photographic and sight records in Randall & Randall 1960, Domeier 1994, Ramon et al. 2003, Lobel et al. 2009, Puebla et al. in press and from www.fishdb.co.uk photos # 1084 and 1204. The Tan hamlet will likely be found in other locations but must be distinguished from the "tan type 2".
FIGURE 8 in A review of the Caribbean hamlets (Serranidae, Hypoplectrus) with description of two new species
FIGURE 8. Color variations in H. nigricans. The notable difference is the coloration of the pectoral fin. A) Jamaica, B) Jamaica, C) Belize.
FIGURE 9. A mated pair showing the normal H in A review of the Caribbean hamlets (Serranidae, Hypoplectrus) with description of two new species
FIGURE 9. A mated pair showing the normal H. unicolor spot pattern on the caudal peduncle (lower right) and an individual with the double spot (upper). This was a mating pair, Discovery Bay, Jamaica.
FIGURE 5 in A review of the Caribbean hamlets (Serranidae, Hypoplectrus) with description of two new species
FIGURE 5. Hypoplectrus randallorum, paratype: MCZ 169203, 91.4 mm SL, Glovers Atoll, 10 m depth, ocean side reef, spear, 21 July 1999, P. S. Lobel and J. E. Randall.
FIGURE 1. Hypoplectrus maya, paratype MCZ 169200, 68.1 in A review of the Caribbean hamlets (Serranidae, Hypoplectrus) with description of two new species
FIGURE 1. Hypoplectrus maya, paratype MCZ 169200, 68.1mm SL, Tunicate Cove, Pelican Cays, 10 November 1994, 3m depth, reef and seagrass.
FIGURE 2. The 18 in A review of 263 years of taxonomic research on Hypoplectrus (Perciformes: Serranidae), with a redescription of Hypoplectrus affinis (Poey, 1861)
FIGURE 2. The 18 unambiguously recognized hamlet species: a. Hypoplectrus unicolor (Florida Keys) b. H. castraguirrei (Veracruz) c. H. providencianus (Belize) d. H. puella (Statia) e. H. floridae (Florida) f. H. ecosur (Alacran Bank) g. H. liberte (Haiti) h. H. nigricans (Belize) i. H. atlahua (Veracruz) j. H. chlorurus (Bonaire) k. H. affinis (Florida Keys) l. H. randallorum (Roatan) m. H. aberrans (US Virgin Islands) n. H. guttavarius (US Virgin Islands) o. H. gummigutta (Tobago) p. H. indigo (Belize). q. H. gemma (Florida) r. H. maya (Belize). All photographs by CJE and AME except c (with permission from Reef Fish Identification, New World Publications, © 2002, Paul Humann), g (with permission from Ken Marks) and r (with permission from Lisa Carne, © Fragments of Hope 2018, http://fragmentsofhope.org/).
FIGURE 6 in A review of 263 years of taxonomic research on Hypoplectrus (Perciformes: Serranidae), with a redescription of Hypoplectrus affinis (Poey, 1861)
FIGURE 6. Principal Component Analysis (PCA) based on whole-genome data of 42 hamlets from Bocas del Toro (Panama). The first three Principal Components (PCs) are shown, with the percentage of variation explained by each PC. The Hypoplectrus puella, H. nigricans and H. unicolor samples formed non-overlapping clusters, confirming that these species are genetically distinct in Bocas del Toro. The two H. gummigutta samples and the H. affinis sample did not overlap either with these three clusters or among themselves, indicating that these two species are also genetically distinct in Bocas del Toro. The H. aberrans sample overlapped with the H. puella cluster when considering the first two PCs, but the third PC discriminated this sample from H. puella.
FIGURE 1. Illustrations accompanying early hamlet descriptions. a in A review of 263 years of taxonomic research on Hypoplectrus (Perciformes: Serranidae), with a redescription of Hypoplectrus affinis (Poey, 1861)
FIGURE 1. Illustrations accompanying early hamlet descriptions. a. Hypoplectrus unicolor from Seba (1759, plate 27, figure 10) b. H. puella from Cuvier (1828, plate 37, image mirrored horizontally) c. H. indigo from Poey (1851, plate 3, figure 1) d. H. gummigutta from Poey (1851, plate 3, figure 2) e. H. guttavarius from Guichenot (1853, plate 1, figure 1, image mirrored horizontally) f. H. gemma described by Goode & Bean (1882). Illustration by H. L. Todd, 1882, Smithsonian Institution NMNH Division of Fishes (image mirrored horizontally).
FIGURE 3 in A review of 263 years of taxonomic research on Hypoplectrus (Perciformes: Serranidae), with a redescription of Hypoplectrus affinis (Poey, 1861)
FIGURE 3. Hypoplectrus affinis (Poey, 1861). a. neotype, STRI 18986, 81.2 mm SL, Punta Juan, Isla Cristóbal, Bocas del Toro, Panama (9º17'54"N 82º17'22"W), 8.5 m depth, March 25 2005, reef, OP and B. Holt b. STRI 19174, 75.7 mm SL, Cayos Holandeses, Guna Yala, Panama (9º34'49"N 78º41'39"W), 8.5 m depth, May 7 2005, reef, OP and A. Castillo c. Panama (Bocas del Toro, not collected) d. Mexico (Alacran reef, Campeche) e. & f. (juvenile) Florida Keys g. Grand Cayman (spawning pair, note blanched coloration) h. Bonaire (note that a similar fish was photographed by AME in Dry Tortugas). Photographs a, b and c by OP, d by Isai Dominguez Guerrero, e and f by CJE and AME, g by Frank Krasovec and h by Kim White, all with permission.
FIGURE 7 in A review of 263 years of taxonomic research on Hypoplectrus (Perciformes: Serranidae), with a redescription of Hypoplectrus affinis (Poey, 1861)
FIGURE 7. Whole-genome phylogeny and COI cladogram of hamlets from Bocas del Toro (Panama). a. maximum-likelihood phylogeny inferred from 118,527 concatenated SNPs. Tips and internal nodes are color-coded by species and bootstrap support, respectively. The phylogeny groups samples by species. b. cladogram infered from maximum likelihood-analysis of 652 sites of the COI mitochondrial gene. Branch length information was ignored for visualisation purposes since the Caribbean hamlets do not sort into distinct mitochondrial haplogroups. Hypoplectrus affinis is part of the Caribbean mitochondrial clade. In both trees (a and b), the best maximum-likelihood tree is shown, rooted with H. floridae from Florida (which is part of the Gulf of Mexico mitochondrial clade).
Hypoplectrus providencianus SPAdes preassembly
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Hypoplectrus randallorum SPAdes preassembly
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Hypoplectrus chlorurus SPAdes preassembly
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Hypoplectrus guttavarius SPAdes preassembly
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Hypoplectrus randallorum decontaminated FSCR
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Hypoplectrus nigricans SPAdes preassembly
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Hypoplectrus providencianus decontaminated FSCR
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