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20 results for “Salpida”
Linked collectors and determiners for: Salpida species off the Catalan coast (NW Mediterranean) during summer 2003 and 2004. Neustonic and epipelagic planktonic sampling.
Natural history specimen data linked to collectors and determiners held within, "Salpida species off the Catalan coast (NW Mediterranean) during summer 2003 and 2004. Neustonic and epipelagic planktonic sampling". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/44aae8d4-cfcf-40fc-a3b0-274260069431">https://bionomia.net/dataset/44aae8d4-cfcf-40fc-a3b0-274260069431</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/44aae8d4-cfcf-40fc-a3b0-274260069431">https://gbif.org/dataset/44aae8d4-cfcf-40fc-a3b0-274260069431</a>. Formatted as a Frictionless Data package.
A new molecular phylogeny of salps (Tunicata: Thalicea: Salpida) and the evolutionary history of their colonial architecture
<p>Salps are marine pelagic urochordates with a complex life cycle including a solitary and colonial stage composed of asexually-budded individuals. These colonies develop into species-specific architectures with distinct zooid orientations, including transversal, oblique, linear, helical, and bipinnate chains; as well as whorls, and clusters. The evolutionary history of salp colony architecture has remained obscured due to the lack of a homology-based ontology to characterize architectures, as well as a lack of phylogenetic taxon sampling and resolution of critical nodes. We (1) collected and first-time sequenced eight species of salps, (2) inferred the phylogenetic relationships among salps, and (3) reconstructed the evolutionary history of salp colony architecture. We collected salp specimens via offshore SCUBA diving, dissected tissue samples, extracted their DNA, amplified their 18S gene, and sequenced them using Sanger technology. We inferred a new molecular phylogeny using both Maximum Likelihood and Bayesian approaches. Using this phylogeny, we reconstructed the ancestral states of colony architecture using a Bayesian ordered Markov model informed by the presence and absence of specific developmental mechanisms that lead to each architecture. We find that the ancestral salp architecture is either oblique or linear, with every other state being derived. Moreover, linear chains have evolved independently at least three times. While transversal chains are developmentally basal and hypothesized to be ancestral, our phylogenetic topology and reconstructions strongly indicate that they are evolutionarily derived through the loss of zooid torsion. These traits are likely critical to multijet locomotory performance and evolving under natural selection. Our work showcases the need to study the broader diversity of salp species in order to gain a comprehensive understanding of their organismal biology, evolutionary history, and ecological roles in pelagic ecosystems.</p>
A new molecular phylogeny of salps (Tunicata: Thalicea: Salpida) and the evolutionary history of their colonial architecture
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FIGURE 8b in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 8b. Drawing of Brooksia rostrata (Traustedt, 1893). Left, Solitary; Right, aggregate. Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; N, nucleus; o.m., oral musculature.
FIGURE 6b in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 6b. Drawing of Weelia cylindrica (Cuvier, 1804). Left, Solitary; Right, aggregate. Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G,ganglion, i.m., intermediate muscle; N, nucleus; o.m., oral musculature.
FIGURE 9 in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 9. Distribution of Brooksia rostrata (Traustedt, 1893). Red dots: specimen examined by the author; black dots: records based on compilation of previous literature data.
FIGURE 8a in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 8a. Brooksia rostrata (Traustedt, 1893). Top, Solitary zooid; Middle, posterior part; Bottom, Aggregate. Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; N, nucleus; o.m., oral musculature.
FIGURE 7 in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 7. Distribution of Weelia cylindrica (Cuvier, 1804) Red dots: specimen examined by the author; black dots: records based on compilation of previous literature data.
FIGURE 6a in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 6a. Weelia cylindrica (Cuvier, 1804). Top, Solitary; Bottom, Aggregate. Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; N, nucleus; o.m., oral musculature.
FIGURE 5 in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 5. Distribution of Thalia sibogae (van Soest, 1973). Red dots: specimen examined by the author; black dots: records based on compilation of previous literature data.
FIGURE 4d. Comparison between A in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 4d. Comparison between A: Thalia sibogae (van Soest, 1973) and B: Thalia rhomboides (Quoy & Gaimard, 1824). Top, Solitary, dorsal view, showing length of posterior projections; Bottom, body test part showing presence of echination.
FIGURE 4e in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 4e. Drawing of Thalia sibogae (van Soest, 1973). Left, Solitary; Right, aggregate zooid. Ap., atrial palp; Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; Lp. Lateral projection; Mp., medioventral projection; N, nucleus; o.m., oral musculature; Pp., posterior projection.
FIGURE 4b in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 4b. Thalia sibogae (van Soest, 1973). Top, Solitary, lateral view; Bottom, posterior part. Ap., atrial palp; Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; Lp. Lateral projection, Mp., medioventral projection; N, nucleus; o.m., oral musculature; Pp., posterior projection.
FIGURE 4c in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 4c. Thalia sibogae (van Soest, 1973). Top, Aggregate, ventral view; Bottom, Chain of aggregate zooids. Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; N, nucleus; o.m., oral musculature; Pp., posterior projection.
FIGURE 3 in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 3. Distribution of Thalia rhomboides (Quoy & Gaimard, 1824). Red dots: specimen examined by the author; black dots: records based on compilation of previous literature data.
FIGURE 2d in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 2d. Drawing of Thalia rhomboides (Quoy & Gaimard, 1824). Left, Solitary; Right, aggregate zooid. Ap., atrial palp; Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; Lp. Lateral projection,; Mp., medioventral projection; N, nucleus; o.m., oral musculature; Pp., posterior projection.
FIGURE 4a in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 4a. Thalia sibogae (van Soest, 1973). Top, Solitary, dorsal view; Bottom, ventral view. Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; Lp. Lateral projection; Mp., medioventral projection; N, nucleus; o.m., oral musculature; Pp., posterior projection.
FIGURE 2c in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 2c. Thalia rhomboides (Quoy & Gaimard, 1824). Top, Aggregate, ventral view; Bottom, Stolon, dorsal view. Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; N, nucleus; o.m., oral musculature; Pp., posterior projection.
FIGURE 2b in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 2b. Thalia rhomboides (Quoy & Gaimard, 1824). Top, Solitary, lateral view; Bottom, posterior part. Ap., atrial palp; Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; Lp. Lateral projection,; Mp., medioventral projection; N, nucleus; o.m., oral musculature; Pp., posterior projection.
FIGURE 2a in A taxonomic revision of the genus Thalia Blumenbach, 1798; Weelia Yount, 1954; Brooksia Metcalf, 1918 (Salpida: Salpidae) from East Coast of Peninsular Malaysia
FIGURE 2a. Thalia rhomboides (Quoy & Gaimard, 1824). Top, Solitary, dorsal view; Bottom, ventral view. Br, branchial septum; Dt., dorsal tubercle; End, endostyle; G, ganglion, i.m., intermediate muscle; Lp. Lateral projection,; Mp., medioventral projection; N, nucleus; o.m., oral musculature; Pp., posterior projection.
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