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37 results for “Pocillopora damicornis”
Figure 2. from: New evidence shows that Pocillopora 'damicornis-like' corals in Singapore are actually Pocillopora acuta (Scleractinia: Pocilloporidae) - Biodiversity Data Journal 5: e11407 (13 February 2017) https://doi.org/10.3897/BDJ.5.e11407
Figure 2. - Pocillopora specimens previously identified as P. damicornis from the Zoological Reference Collection, Lee Kong Chian Natural History Museum, Singapore (A, B: ZRC.1980.20.133; C, D: ZRC.1991.766; E, F: ZRC.1987.1538; G, H: ZRC.1987.1995; I, J: ZRC.1991.763; K, L: ZRC.1987.1537). A–F, colonies with thick branches; G–L, colonies with thinner branches. Scale bars represent 1 cm.
Figure 3. from: New evidence shows that Pocillopora 'damicornis-like' corals in Singapore are actually Pocillopora acuta (Scleractinia: Pocilloporidae) - Biodiversity Data Journal 5: e11407 (13 February 2017) https://doi.org/10.3897/BDJ.5.e11407
Figure 3. - Maximum likelihood tree of seven Pocillopora species based on the mitochondrial open reading frame. Colonies from Singapore are shown in red. Bootstrap values (≥ 50) and Bayesian posterior probabilities (≥ 0.85) are shown for supported clades.
Figure 3. from: New evidence shows that Pocillopora 'damicornis-like' corals in Singapore are actually Pocillopora acuta (Scleractinia: Pocilloporidae) - Biodiversity Data Journal 5: e11407 (13 February 2017) https://doi.org/10.3897/BDJ.5.e11407
Figure 3. - Maximum likelihood tree of seven Pocillopora species based on the mitochondrial open reading frame. Colonies from Singapore are shown in red. Bootstrap values (≥ 50) and Bayesian posterior probabilities (≥ 0.85) are shown for supported clades.
Figure 1. from: New evidence shows that Pocillopora 'damicornis-like' corals in Singapore are actually Pocillopora acuta (Scleractinia: Pocilloporidae) - Biodiversity Data Journal 5: e11407 (13 February 2017) https://doi.org/10.3897/BDJ.5.e11407
Figure 1. - Pocillopora specimens examined in this study. In situ appearances (A: HD159, D: HD162, G: HD161, J: HD160, M: HD154), with corresponding images of bleached skeletons (B, E, H, K, N). C, live specimen showing brown ring surrounding each oral opening (image by Jenny). F, I, branches from colonies shown in D and G respectively. L, O, calices and septa from colonies shown in J and M respectively. Scale bars represent 1 cm (B, E, H, K, N) and 1 mm (F, I, L, O) respectively.
Figure 2. from: New evidence shows that Pocillopora 'damicornis-like' corals in Singapore are actually Pocillopora acuta (Scleractinia: Pocilloporidae) - Biodiversity Data Journal 5: e11407 (13 February 2017) https://doi.org/10.3897/BDJ.5.e11407
Figure 2. - Pocillopora specimens previously identified as P. damicornis from the Zoological Reference Collection, Lee Kong Chian Natural History Museum, Singapore (A, B: ZRC.1980.20.133; C, D: ZRC.1991.766; E, F: ZRC.1987.1538; G, H: ZRC.1987.1995; I, J: ZRC.1991.763; K, L: ZRC.1987.1537). A–F, colonies with thick branches; G–L, colonies with thinner branches. Scale bars represent 1 cm.
Figure 1. from: New evidence shows that Pocillopora 'damicornis-like' corals in Singapore are actually Pocillopora acuta (Scleractinia: Pocilloporidae) - Biodiversity Data Journal 5: e11407 (13 February 2017) https://doi.org/10.3897/BDJ.5.e11407
Figure 1. - Pocillopora specimens examined in this study. In situ appearances (A: HD159, D: HD162, G: HD161, J: HD160, M: HD154), with corresponding images of bleached skeletons (B, E, H, K, N). C, live specimen showing brown ring surrounding each oral opening (image by Jenny). F, I, branches from colonies shown in D and G respectively. L, O, calices and septa from colonies shown in J and M respectively. Scale bars represent 1 cm (B, E, H, K, N) and 1 mm (F, I, L, O) respectively.
Pocillopora Damicornis Fresh Sample
<p>More information on the methods used to generate this model can be found in:</p> <blockquote> <p>L. Gutierrez-Heredia, C. Keogh, E. G. Reynaud, Assessing the Capabilities of Additive Manufacturing Technologies for Coral Studies, Education, and Monitoring. Front. Mar. Sci. 5 (2018), doi:10.3389/fmars.2018.00278</p> </blockquote>
Cryptic species and genetic connectivity among populations of the coral Pocillopora damicornis (Scleractinia) in the tropical southwestern Pacific
<p>Studying population genetic connectivity (i.e., identifying gene flow among populations and understanding their impacts on the genetic structure and diversity of populations) is first a matter of knowing what we work on, that is, accurately delimiting evolutionary units. Here, we focused on <em>Pocillopora damicornis</em> sensu stricto (or <em>Pocillopora </em>PSH04 sensu Gélin et al. in Mol Phylogenet Evol 109:430–446. http://dx.doi.org/10.1016/j.ympev.2017.01.018, 2017). From 458 colonies sampled within the tropical southwestern Pacific [Chesterfield Islands and New Caledonia (Grande Terre and Loyalty Islands)], Bayesian assignments and network analyses were conducted with 11-microsatellite loci to first evaluate the genetic partitioning of the colonies in distinct Secondary Species Hypotheses (SSHs), then in distinct clusters. Population genetic connectivity was then assessed for each cluster separately. <em>Pocillopora </em>PSH04 was partitioned into two highly differentiated SSHs (SSH04a and SSH04b), regularly found in sympatry. Furthermore, SSH04a was subdivided into two clusters (SSH04a-1 and SSH04a-2). This pattern of genetic structuring seems not related to clonality, but rather to the establishment of reproductive barriers. Nevertheless, considering each cluster separately, the populations appeared highly differentiated, suggesting relatively weak gene flow. This low connectivity among populations, coupled with the existence of cryptic species, brings new insights to the connectivity pattern of this understudied Pacific region.</p> <p>This dataset contains the microsatellite genotypes analysed (458 <em>Pocillopora</em> PSH04 colonies × 13 loci).</p>
Data from: Impacts of temperature and lunar day on gene expression profiles during a monthly reproductive cycle in the brooding coral Pocillopora damicornis
Reproductive timing in brooding corals has been correlated to temperature and lunar irradiance, but the mechanisms by which corals transduce these environmental variables into molecular signals are unknown. To gain insight into these processes, global gene expression profiles in the coral Pocillopora damicornis were examined (via RNA-Seq) across lunar phases and between temperature treatments, during a monthly planulation cycle. The interaction of temperature and lunar day together had the largest influence on gene expression. Mean timing of planulation, which occurred at lunar days 7.4 and 12.5 for 28- and 23°C-treated corals, respectively, was associated with an upregulation of transcripts in individual temperature treatments. Expression profiles of planulation-associated genes were compared between temperature treatments, revealing that elevated temperatures disrupted expression profiles associated with planulation. Gene functions inferred from homologous matches to online databases suggest complex neuropeptide signalling, with calcium as a central mediator, acting through tyrosine kinase and G protein-coupled receptor pathways. This work contributes to our understanding of coral reproductive physiology and the impacts of environmental variables on coral reproductive pathways.
Data from: Genetic relatedness does not retain spatial pattern across multiple spatial scales: dispersal and colonization in the coral, Pocillopora damicornis
Patterns of isolation-by-distance are uncommon in coral populations. Here, we depart from historical trends of large-scale, geographic genetic analyses by scaling down to a single patch reef in Kāne'ohe Bay, Hawai'i, and map and genotype all colonies of the coral, Pocillopora damicornis. Six polymorphic microsatellite loci were used to assess population genetic and clonal structure and to calculate individual colony pairwise relatedness values. Our results point to an inbred, highly clonal reef (between 53 and 116 clonal lineages out of 2352 genotyped colonies) with a very skewed genet frequency distribution (over 70% of the reef was composed of just seven genotypes). Spatial autocorrelation analyses revealed that corals found close together on the reef were more genetically related than corals further apart. Spatial genetic structure disappears, however, as spatial scale increases and then becomes negative at the largest distances. Stratified, random sampling of three neighbouring reefs confirms that reefs are demographically open and inter-reef genetic structuring was not detected. Attributing process to pattern in corals is complicated by their mixed reproductive strategies. Separate autocorrelation analyses, however, show that the spatial distribution of both clones and non-clones contribute to spatial genetic structure. Overall, we demonstrate genetic structure on an intra-reef scale and genetic panmixia on an inter-reef scale indicating that, for P. damicornis, small- and large-scale dispersal processes are likely not the same. By starting from an inter-individual, intra-reef level before scaling up to an inter-reef level, this study demonstrates that isolation-by-distance patterns for the coral P. damicornis are limited to small scales and highlights the importance of investigating genetic patterns and ecological processes at multiple scales.
FIGURE 3 in Copepods associated with scleractinian corals: a worldwide checklist and a case study of their impact on the reef-building coral Pocillopora damicornis (Linnaeus, 1758) (Pocilloporidae)
FIGURE 3. Multidimensional scaling (MDS) plot of 75% similarity in species composition and abundance of symbiotic copepods amongst various sampling periods.
FIGURE 4 in Copepods associated with scleractinian corals: a worldwide checklist and a case study of their impact on the reef-building coral Pocillopora damicornis (Linnaeus, 1758) (Pocilloporidae)
FIGURE 4. Principal component analysis (PCA) of square root-transformed data from five functional categories of copepods (see text for descriptions.) defined based on behaviour (endo-/ectoparasitic or benthic) and the structure of the feeding appendages (mandibles vs. siphon) at various sampling periods. PC1 accounted for 77.2% of the variability, and PC2 accounted for 13.7%.
FIGURE 2 in Copepods associated with scleractinian corals: a worldwide checklist and a case study of their impact on the reef-building coral Pocillopora damicornis (Linnaeus, 1758) (Pocilloporidae)
FIGURE 2. Relationships between copepod infection and the amount of resources (Symbiodinium densities and surface areas) provided by host corals. A–E: Mean densities of symbiotic copepods (A: Siphonostomatoida, B: Cyclopoida, C: Harpacticoida, D: all copepods) among 480 Pocillopora damicornis colonies with varying Symbiodinium densities. E–H: Relationship between mean densities of symbiotic copepods (E: Siphonostomatoida, F: Cyclopoida, G: Harpacticoida, H: all copepods) and surface areas of host corals.
FIGURE 1 in Copepods associated with scleractinian corals: a worldwide checklist and a case study of their impact on the reef-building coral Pocillopora damicornis (Linnaeus, 1758) (Pocilloporidae)
FIGURE 1. Variation in seawater temperature and Symbiodinium density (mean ± SE) observed in Pocillopora damicornis colonies of Nanwan Bay, Southern Taiwan between July 2007 and November 2008. Lowercase and uppercase letters (a, b, c, and d) refer to the results of Tukey's post-hoc comparisons of monthly temperature and Symbiodinium density means, respectively, as a significant effect of time was detected in the overall ANOVA models (p <0.05 for both parameters).
FIGURE 8. Pocillopora damicornis, a in Some scleractinian corals (Scleractinia: Anthozoa) of Larak Island, Persian Gulf
FIGURE 8. Pocillopora damicornis, a, exoskeleton; b, close up photograph of corallites; c, underwater photograph of polyps; d–e. underwater photographs of different colonies.
Data from: Genetic diversity, clonality and connectivity in the scleractinian coral Pocillopora damicornis: a multi-scale analysis in an insular, fragmented reef system
Clonality and genetic structure of the coral Pocillopora damicornis sensu lato were assessed using five microsatellites in 12 populations from four islands of the Society Archipelago (French Polynesia) sampled in June 2008. The 427 analysed specimens fell into 132 multilocus genotypes (MLGs), suggesting that asexual reproduction plays an important role in the maintenance of these populations. A haploweb analysis of ITS2 sequences of each MLG was consistent with all of them being conspecific. Genetic differentiation was detected both between and within islands, but when a single sample per MLG was included in the analyses, the populations turned out to be nearly panmictic. These observations provide further evidence of the marked variability in reproductive strategies and genetic structure of P. damicornis throughout its geographic range; comparison with results previously obtained for the congeneric species Pocillopora meandrina underlines the importance of life history traits in shaping the genetic structure of coral populations.
Figure 15. Pocillopora meandrina. A in With eyes wide open: a revision of species within and closely related to the Pocillopora damicornis species complex (Scleractinia; Pocilloporidae) using morphology and genetics
Figure 15. Pocillopora meandrina. A, field appearance of P. meandrina (side view). B, skeleton of previous variation (MTQ-G65917). C and D, scanning electron micrographs of previous specimen. E, corallum of P. meandrina (side view) (MTQ-G66117). D, in situ appearance.
Figure 12 in With eyes wide open: a revision of species within and closely related to the Pocillopora damicornis species complex (Scleractinia; Pocilloporidae) using morphology and genetics
Figure 12. Field appearance of taxa in partial sympatry, when growing as mosaic colonies or in approximate distance to each other. α, P. damicornis; β, P. acuta; γ, P. verrucosa; x, P. bairdi sp. nov.; e, P. eydouxi; m, P. meandrina.
Figure 9. Pocillopora aliciae. A, field appearance. B in With eyes wide open: a revision of species within and closely related to the Pocillopora damicornis species complex (Scleractinia; Pocilloporidae) using morphology and genetics
Figure 9. Pocillopora aliciae. A, field appearance. B, skeleton of branch. C and D, scanning electron micrographs of corallite structure. E, corallum of holotype (MTQ-G65423) (Schmidt-Roach et al., 2013). F, typical growth from on reef slope.
Figure 7 in With eyes wide open: a revision of species within and closely related to the Pocillopora damicornis species complex (Scleractinia; Pocilloporidae) using morphology and genetics
Figure 7. Illustration of morphological plasticity of the corallum of Pocillopora damicornis in different environments and at different latitudes (side views). MTQ-sample numbers: A, G66102; B, G66131; C, G66126; D, G66136; E, G66109; F, G66107; G, G66095; H, G66127; I, G66134; J, G66123; K, G66097; L, G66103; M, n/a; N, G66098; O, G66099; P, G66100; Q, G66093; R, G66094; S, G66121; T, G66091; U, G66090.
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