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12 results for “Callyspongia”
Data from: Evaluating summary statistics used to test for incomplete lineage sorting: mito-nuclear discordance in the reef sponge Callyspongia vaginalis
Conflicting patterns of population differentiation between the mitochondrial and nuclear genomes (mito-nuclear discordance) have become increasingly evident as multilocus datasets have become easier to generate. Incomplete lineage sorting (ILS) of nucDNA is often implicated as the cause of such discordance, stemming from the large effective population size of nucDNA relative to mtDNA. However, selection, sex-biased dispersal, and historical demography can also lead to mito-nuclear discordance. Here we compare patterns of genetic diversity and subdivision for six nuclear protein-coding gene regions to those for mtDNA in a common Caribbean coral reef sponge, Callyspongia vaginalis, along the Florida reef tract. We also evaluated a suite of summary statistics to determine which are effective metrics for comparing empirical and simulated data when testing drivers of mito-nuclear discordance in a statistical framework. While earlier work revealed three divergent and geographically subdivided mtDNA COI haplotypes separated by 2.4% sequence divergence, nuclear alleles were admixed with respect to mitochondrial clade and geography. Bayesian analysis showed substitution rates for the nuclear loci were up to 7 times faster than for mitochondrial COI. Coalescent simulations and neutrality tests suggested that mito-nuclear discordance in C. vaginalis is not the result of ILS in the nucDNA or selection on the mtDNA but is more likely caused by changes in population size. Sperm-mediated gene flow may also influence patterns of population subdivision in the nucDNA.
FIGURE 3. Neoasterocheres breviseta n in A new asterocherid genus (Copepoda: Siphonostomatoida) associated with Callyspongia Duchassaing & Michelotti and reassessment of six species of Asterocheres Boeck
FIGURE 3. Neoasterocheres breviseta n. sp., female (paratype: UFBA 3179). A, maxilliped; B, leg 1; C, leg 2; D, leg 3; E, leg 4. Scale bars: A—E = 25 µm.
FIGURE 5 in A new asterocherid genus (Copepoda: Siphonostomatoida) associated with Callyspongia Duchassaing & Michelotti and reassessment of six species of Asterocheres Boeck
FIGURE 5. Neoasterocheres serrulatus (Humes, 1996) n. com., female (holotype: USNM 268463). A, maxilla; B, maxilliped; C, leg 1; D, leg 2; E, leg 3; F, leg 4; G, leg 5. Scale bars: A—G = 50 µm.
FIGURE 1 in A new asterocherid genus (Copepoda: Siphonostomatoida) associated with Callyspongia Duchassaing & Michelotti and reassessment of six species of Asterocheres Boeck
FIGURE 1. Location of the collection site at Yatch Club, Bahia (BA), Brazil (modified from Canário et al., 2012).
FIGURE 2. Neoasterocheres breviseta n in A new asterocherid genus (Copepoda: Siphonostomatoida) associated with Callyspongia Duchassaing & Michelotti and reassessment of six species of Asterocheres Boeck
FIGURE 2. Neoasterocheres breviseta n. sp., female (paratype: UFBA 3179). A, habitus, dorsal view; B, urosome; C, antennule; D, antenna; E, mandible; F, maxillule; G, maxilla. Scale bars: A = 100 µm; B—G = 25 µm.
FIGURE 4 in A new asterocherid genus (Copepoda: Siphonostomatoida) associated with Callyspongia Duchassaing & Michelotti and reassessment of six species of Asterocheres Boeck
FIGURE 4. Neoasterocheres serrulatus (Humes, 1996) n. com., female (holotype: USNM 268463). A, habitus, dorsal view; B, urosome; C, left caudal rami, dorsal view; D, antennule; E, antenna; F, mandible; G, maxillule. Scale bars: A = 200 µm; B, D, G = 100 µm; C = 25 µm; E—F = 50 µm.
FIGURE 4 in Mesophotic sponges of the genus Callyspongia (Demospongiae, Haplosclerida) from Cuba, with the description of two new species
FIGURE 4. Callyspongia (C.) alcoladoi sp. nov. a) Tangential section of ectosome (4X) b) Longitudinal section shows primary, secondary, and tertiary fibers (4X) c) Fibers discretely cored (20X) d) Mucronate oxea (400X).
FIGURE 3 in Mesophotic sponges of the genus Callyspongia (Demospongiae, Haplosclerida) from Cuba, with the description of two new species
FIGURE 3. Callyspongia (C.) alcoladoi sp. nov. a) Holotype in live habit b) Other specimen in live habit, but not collected c- d) Holotype on deck e) Very smooth surface and round osculum, slightly sunken.
FIGURE 2 in Mesophotic sponges of the genus Callyspongia (Demospongiae, Haplosclerida) from Cuba, with the description of two new species
FIGURE 2. Callyspongia (C.) pedroi sp. nov. a) Perpendicular section of skeleton showing peripheral condensation of reticle (4X) b) Ectosome showing large meshes and spiny termination of the skeleton on the surface (20X) c) Fibers discretely cored (20X) d) Fusiform oxeas (400X).
FIGURE 1 in Mesophotic sponges of the genus Callyspongia (Demospongiae, Haplosclerida) from Cuba, with the description of two new species
FIGURE 1. Callyspongia (C.) pedroi sp. nov. a) Holotype in live habit b) Other specimen in live habit, but not collected c-d) Holotype on deck e) Microconulose surface, and oval flushed osculum.
Data from: Evaluating summary statistics used to test for incomplete lineage sorting: mito-nuclear discordance in the reef sponge Callyspongia vaginalis
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BMC inoculation - Callyspongia crassa (Saudi Arabia 2022)
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