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12 results for “Sirodotia”
APPENDIX 9 in Revision of the genus Sirodotia Kylin (Batrachospermales, Rhodophyta) with description of four new species
APPENDIX 9. — Distance tree (neighbor-joining) based on LSU sequences. * = bootstrap values>95; nodes without values indicate bootstrap values ≤ 70. Information on the sequences are listed in Appendices 1, 2. Scale represents substitutions per site.
FIG. 2 in Revision of the genus Sirodotia Kylin (Batrachospermales, Rhodophyta) with description of four new species
FIG. 2. — Neighbor Joining tree (NJ) showing the relationship of Sirodotia Kylin species based on COI-5P sequence data. * = bootstrap (bs)>95; nodes without values indicate <70 bs. Specimen code as in Appendix 1. Some sequences represent more than one collection with identical sequence, the number of additional sequences is shown in parentheses and this information is noted in Appendix 1. Scale represents substitutions per site.
APPENDIX 8 in Revision of the genus Sirodotia Kylin (Batrachospermales, Rhodophyta) with description of four new species
APPENDIX 8. — Graphical representation of the results of Automatic Barcode Gap Discovery (ABGD) for the COI-5P sequences of the Sirodotia genus used in this study. A, Histogram of the distribution of the different distance values for each species. B, the same distance data represented as ordered values.
FIG. 1 in Revision of the genus Sirodotia Kylin (Batrachospermales, Rhodophyta) with description of four new species
FIG. 1. — Phylogenetic tree (ML) showing the relationship of species within Sirodotia Kylin and genera of the Batrachospermales and Thoreales based on rbcL, COI-5P and LSU concatenated sequence data. * = bootstrap (bs)>95 and posterior probability (pp)>0.95 support; nodes without values indicate bs<70 and pp<0.80. Specimen code as in Appendix 1. Some sequences represent more than one collection with identical.
FIG. 5 in Revision of the genus Sirodotia Kylin (Batrachospermales, Rhodophyta) with description of four new species
FIG. 5. – Morphological features of Sirodotia species: A-E, Sirodotia delicatula Skuja (photos taken from sample BHO A-0984): A, obconical whorls; B, primary fascicle; C, carpogonium with a mature trichogyne (arrow) showing the basal hemispherical protuberance (arrowhead); D, fertilized carpogonium with a sessile cylindrical trichogyne, attached spermatium (arrowhead) and gonimoblast initial developing from the protuberant side of the carpogonial base (arrow); E, carposporangia (arrow) and erect gonimoblast filaments (arrowhead); F-L, Sirodotia delicatuliformis Necchi, N.L.Rossignolo & M.O.Paiano, sp. nov. (photos taken from sample SJRP 31918 – holotype): F, obconical whorls; G, primary fascicle; H, primary fascicle with spermatangia (arrow) and anomalous shape (bent end) trichogyne (arrowhead); I, carpogonium with a mature trichogyne (arrow) showing the basal hemispherical protuberance (double arrow); J, carpogonium with anomalous shape (bifurcate) trichogyne (arrow); K, carpogonium with a sessile cylindrical trichogyne (short arrow), attached spermatium (long arrow) and gonimoblast initial developing from the protuberant side of the carpogonial base (double arrow); L, carposporangia (long arrow) and erect (short arrow) gonimoblast filaments. Scale bars: A, F, 200 μm; B, C, D, E, I, 20 μm; D, K, 10 μm G, H, 50 μm; L, 25 μm. D, redrawn from Johnston et al. (2014); K, redrawn from Necchi (1991).
APPENDIX 7 in Revision of the genus Sirodotia Kylin (Batrachospermales, Rhodophyta) with description of four new species
APPENDIX 7. — Maximum likelihood phylogenetic tree based on rbcL. The numbers associated with the nodes indicate the bootstrap values (BS) for maximum likelihood and posterior probability (PP) for Bayesian analysis; nodes without values indicate BS≤70% and PP≤0.70. Sample codes as in Appendix 1.
FIG. 4 in Revision of the genus Sirodotia Kylin (Batrachospermales, Rhodophyta) with description of four new species
FIG. 4. – Morphological features of Sirodotia species. A-E, Sirodotia assamica Necchi, Rossignolo, Yasmin, J.A.West & Ganesan (photos taken from samples SJRP 32583, 32584): A, B; primary fascicles with spermatangia in clusters (arrows); C, a carpogonium with a mature trichogyne (arrow) showing the basal hemispherical protuberance (arrowhead); D, fertilized carpogonium with attached spermatium (arrow), gonimoblast initial (arrowhead) developing from the same side of the basal protuberance (arrowhead); E, carposporangia (arrow), prostrate (arrowhead) and erect (double arrowhead) gonimoblast filaments; F-J, Sirodotia cryptica Necchi, N.L.Rossignolo & M.O.Paiano, sp. nov. (photos taken from sample SJRP 32575 - holotype): F, obconical whorls; G, primary fascicle with spermatangia (arrow); H, carpogonium with a mature cylindrical trichogyne (arrow) showing the basal hemispherical protuberance (arrowhead); I, fertilized carpogonium with a sessile elongate-conical trichogyne (arrowhead), attached spermatium (arrow) and gonimoblast initial developing from the protuberant side of the carpogonial base (double arrowhead); J, carposporangia (arrows) and erect gonimoblast filaments (arrowheads). Scale bars: A, B, G, 50 μm; C, D, H-J, 20 μm; E 10 μm; F, 200 μm. B-D, reproduced with permission from Rossignolo et al. (2020) (Magnolia Press).
FIG. 6 in Revision of the genus Sirodotia Kylin (Batrachospermales, Rhodophyta) with description of four new species
FIG. 6. — Morphological features of Sirodotia species: A-E. Sirodotia huillensis (Welwitsch ex West & G.S.West) Skuja (photos taken from sample BHO A-1447): A, obconical whorls; B, C, primary fascicles with spermatangia (arrows); D, E, carpogonia with irregular trichogyne (arrowheads) showing the basal hemispherical protuberance (double arrows) and gonimoblast initial developing from the protuberant side of the carpogonium (arrow); F, carposporangia (arrows) and erect gonimoblast filaments (arrowheads). G-I, Sirodotia kennedyi (photos taken from sample BHO A-0946): G, obconical whorls; H, primary fascicles (arrows) and carpogonium with irregular trichogyne (arowhead) and basal hemispherical protuberance (double arrowhead); I, carposporangia (arrow), prostrate (arrowhead) and erect (double arrowhead) gonimoblast filaments. J-N, Sirodotia suecica Kylin (photos taken from samples BHO A-0266, SJRP32582, SJRP32583): J, obconical whorls; K, primary fascicles with terminal spermatangia (arrows); L, carpogonia with mature trichogyne (arrows) and basal hemispherical protuberance (arrowhead); M, fertilized carpogonium with attached spermatium (arrow) and gonimoblast initial (double arrowhead) on the opposite side of the basal protuberance (arrowhead); N, carposporangia (arrows), prostrate (arrowhead) and erect (double arrowhead) gonimoblast filaments. Scale bars: A, G, J, 100 μm; B-C, H-I; D-F, L-M, 10 μm; K, 50 µm. B-F, redrawn from Skuja (1931); H-I, modified from Szinte et al. (2020); M, redrawn from Necchi et al. (1993).
FIG. 3 in Revision of the genus Sirodotia Kylin (Batrachospermales, Rhodophyta) with description of four new species
FIG. 3. – Morphological features of Sirodotia species: A-E, Sirodotia amazonica Necchi, N.L.Rossignolo & M.O.Paiano, sp. nov. (all figures taken from sample SJRP 31924 - holotype): A, pear-shaped whorls; B, primary fascicle with spermatangia (arrow); C, carpogonium with a mature trichogyne (arrowhead) showing the basal hemispherical protuberance (double arrow) and attached spermatia (arrow); D, fertilized carpogonium with a cylindrical trichogyne (arrowhead), attached spermatia (arrow) and gonimoblast initial developing from the protuberant side of the carpogonial base (double arrow); E, carposporangia (arrow) and erect (arrowhead) gonimoblast filaments. F-J. Sirodotia aquiloamericana: F, pear-shaped whorls; G, primary fascicle with spermatangia (arrow); H, carpogonium with a mature trichogyne (arrow) showing the basal hemispherical protuberance (arrowhead); I, fertilized carpogonium with a cylindrical trichogyne (arrowhead), attached spermatia (arrow) and gonimoblast initial developing from the protuberant side of the carpogonial base (double arrow); J, carposporangia (arrow) and erect (arrowhead) gonimoblast filaments. K, Sirodotia assamica Necchi, N.L.Rossignolo, F.Yasmin, J.A.West & Ganesan (photo taken from sample SJRP 32583): pear-shaped whorls showing densely arranged spermatangia (arrows). Scale bars: A, F, K, 200 μm; B, G, J, 20 μm; C-E, H, I, 10 μm. H-I, redrawn from Necchi et al. (1993).
FIGURE 2 in Molecular and morphological evidence for a new species in the genus Sirodotia (Batrachospermales, Rhodophyta) from the State of Assam, India
FIGURE 2. Distance tree (neighbor joining) of COI-5P DNA sequences for Sirodotia species and Batrachospermales outgroup taxa. The numbers associated with the nodes indicate the bootstrap values, nodes without values indicate support <70%. Sample codes as in Table 1.
FIGURE 1 in Molecular and morphological evidence for a new species in the genus Sirodotia (Batrachospermales, Rhodophyta) from the State of Assam, India
FIGURE 1. Maximum likelihood phylogenetic tree based on rbcL DNA sequences. The numbers associated with the nodes indicate the bootstrap values (BS) for maximum likelihood and posterior probability (PP) for Bayesian analysis, respectively. Nodes without values indicate BS ≤ 70% and PP ≤ 0.70. Sample codes as in Table 1.
FIGURE 3 in Molecular and morphological evidence for a new species in the genus Sirodotia (Batrachospermales, Rhodophyta) from the State of Assam, India
FIGURE 3. Sirodotia assamica sp. nov. a. Main axis. b. Whorl showing densely arranged gonimoblast filaments along the internode (arrow). c. Primary fascicles and spermatangia (Sp) in clusters on a primary fascicle. d. Carposporangia (Cp), prostrate (Pr) and erect (Er) gonimoblast filaments. e. Detail of spermatangia (Sp) in clusters on primary fascicle. f. Spermatangia (Sp) in clusters on a secondary fascicle. g. A carpogonium with a mature trichogyne (Tr) and a basal hemispherical protuberance (PB). h. Fertilized carpogonium with attached spermatium and gonimoblast initial (GI) on the same side of the basal protuberance. Scale bar: 100 µm for figure a; 50 µm for figures b, c and f; 20 µm for figures d,e,g and h.
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