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176 results for “Pteridaceae”
Figura 1 in O gênero Adiantum (Pteridaceae) no Estado do Paraná, Brasil
Figura 1. Distribuição geral das espécies de Adiantum no Estado do Paraná.
Data from: Haplopteris palustris, a new terrestrial vittarioid fern (Pteridaceae; Polypodiales) from Western Malaysia
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FIGURE. Differences of Adiantum japonicum and A. pedatum. A–C, G–I, M–O: A. japonicum; D–F, J–L, P–R: A. pedatum. A, D. rhizome; B, E. stipe; C, F. scales of stipe; G, J. pinna at apex; H, K. pinnules; I. L. Direction of leaf branching; M-R. spore. Photo credit: Ting Zhao. in Adiantum japonicum, a new species of the Adiantum pedatum complex (Pteridaceae) from Japan
FIGURE. Differences of Adiantum japonicum and A. pedatum. A–C, G–I, M–O: A. japonicum; D–F, J–L, P–R: A. pedatum. A, D. rhizome; B, E. stipe; C, F. scales of stipe; G, J. pinna at apex; H, K. pinnules; I. L. Direction of leaf branching; M-R. spore. Photo credit: Ting Zhao.
FIGURE. The Bayesian tree of the Adaintum pedatum complex based on chloroplast markers and corresponding rhizome type. Support values (Bayesian inference posterior probability (BIPP) (upper) ≥ 0.5, and maximum likelihood bootstrap support (MLBS) (nether) ≥ 50%) are shown above the main branches, the thickened branches indicate MLBS=100 and BIPP=1. Yellow bar means erect rhizome; blue bar means creeping rhizome; gray bar means decumbent or short-creeping rhizome. in Adiantum japonicum, a new species of the Adiantum pedatum complex (Pteridaceae) from Japan
FIGURE. The Bayesian tree of the Adaintum pedatum complex based on chloroplast markers and corresponding rhizome type. Support values (Bayesian inference posterior probability (BIPP) (upper) ≥ 0.5, and maximum likelihood bootstrap support (MLBS) (nether) ≥ 50%) are shown above the main branches, the thickened branches indicate MLBS=100 and BIPP=1. Yellow bar means erect rhizome; blue bar means creeping rhizome; gray bar means decumbent or short-creeping rhizome.
Variation in frequency of plastid RNA editing within Adiantum (Pteridaceae) implies rapid evolution in fern plastomes
<p>Premise</p> <p>Recent advances in studies of plant RNA editing have demonstrated that the number of editing sites can vary widely among large taxonomic groups (orders, families). Yet, very little is known about intrageneric variation in frequency of plant RNA editing, and no study has been conducted in ferns.</p> <p>Methods</p> <p>We determined plastid RNA editing counts for two species of Adiantum (Pteridaceae), A. shastense and A. aleuticum, by implementing a pipeline that integrated read mapping and SNP calling software to identify RNA editing sites. We then compared the edits found in A. aleuticum and A. shastense with previously published edits from A. capillus-veneris by generating alignments for each plastid gene.</p> <p>Results</p> <p>We found direct evidence for 505 and 509 plastid RNA editing sites in A. aleuticum and A. shastense, respectively, compared with 350 sites in A. capillus-veneris. We observed striking variation in the number and location of the RNA editing sites among the three species, with reverse (U-to-C) editing sites showing a higher degree of conservation than forward (C-to-U) sites. Additionally, sites involving start and stop codons were highly conserved.</p> <p>Conclusions</p> <p>Variation in RNA editing frequency observed within Adiantum implies that RNA editing sites can be rapidly gained or lost throughout evolution. However, varying degrees of conservation between both C-to-U and U-to-C sites and sites in start or stop codons, versus other codons, hints at the likely independent origin of both types of edits and a potential selective advantage conferred by RNA editing.</p>
FIGURE 3 in Pteris pseudoamoena (Pteridaceae), a new species from Guangxi, China and Vietnam
FIGURE 3. Spores of Pteris pseudoamoena, P. amoena and P. mcclurei. A–B. Spores of P. pseudoamoena with echinate-tuberculate and auriculate ornamentation (J. M. Wang 20150130-2 IBSC); C–D. Spores of P. amoena with tuberculate and verrucate ornamentation cited from Yang 2011 (B. G. Li 45755 HITBC); E–F. Spores of P. mcclurei with rugulate ornamentation cited from Yang 2011 (H. F. Qin 700276 IBSC). Scale bars: 10 μm (A–F).
FIGURE 2 in Pteris pseudoamoena (Pteridaceae), a new species from Guangxi, China and Vietnam
FIGURE 2. The habitat and morphology of Pteris pseudoamoena (photographed by Hong-Jin Wei except D). A. An individual with long apices of pinnae growing in a jungle on a calcareous hill; B. An individual with short apices of pinnae growing in a jungle on a calcareous hill; C. An individual growing in a calcareous rock crevice; D. An individual with two pairs of basiscopic pinnules at basal pinnae (J. M. Wang 20150131-4 A7); E. The abaxial side of a fertile frond; F. Segments of a fertile frond with interlinked veins indicated by arrows; G. Stipes with scales at base; H. Calcareous hills in Xialei Town, Daxin County, Guangxi Province, China.
FIGURE 4 in Pteris pseudoamoena (Pteridaceae), a new species from Guangxi, China and Vietnam
FIGURE 4. Maximum likelihood phylogeny of Pteris. Support values (maximum likelihood bootstrap support, Bayesian inference posterior probability and maximum parsimony jackknife support) are shown along the branches. Values of MLBS = 100%, BIPP = 1.0, and MPJK = 100%, are indicated by an asterisk. Dash (-) indicates nodes with BIPP <0.9 or MPJK <50%. "//" indicates that the branch length of the outgroup is shortened.
FIGURES 3–7 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURES 3–7. (Continued) Photomicrographs (left) and explanatory diagrams (right) of chromosomes of A. longzhouensis (2n = 60). 3-6: individuals collected in DX (wah2020060616); 7: individuals collected in DB (wah2020060618).
FIGURE 12 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURE 12. Morphology of individuals responding to Figs 1–11 and Table 1. A–I: A. gravesii complex; J: A. dentatum; K–L: A. mariesii complex; M: A. juxtapositum; N-O: A. longzhouensis. A: JEB, B: GAS; C: HFB; D: HMMB; E: JW1B1; F: HB1B; G: SJB; H: GGL1; I: GXM; J: HB2C; K: HMMX; L: SBSX; M: GSD; N: DX; O: DB. Among the A. gravesii complex (A–I), D and G were typical A. gravesii, the others were intermediate morphology. In A. mariesii complex, L is the typical A. mariesii and K was the A. mariesii complex. All short names of populations and their morphological characters were listed in Table 1.
FIGURES 3–7 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURES 3–7. Photomicrographs (left) and explanatory diagrams (right) of chromosomes of A. longzhouensis (2n = 60). 3-6: individuals collected in DX (wah2020060616); 7: individuals collected in DB (wah2020060618).
FIGURE 13 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURE 13. Strict consensus tree of six maximally parsimonious trees for series Gravesiana obtained from atpA, atpB, rbcL, trnL- F, rps4-trnS and matK sequences in Wang et al. 2017. The bootstrap values were shown above the lines, and the Bayesian posterior probabilities were shown below the lines.
FIGURE 11 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURE 11. Photomicrographs and explanatory diagrams of chromosomes of A. gravesii complex from different populations. A: individuals collected in JEB (2n = 120) (wah2020052609); B: individuals collected in HFB (2n = ca. 120) (WAH055); C: individuals collected in HMMB (2n = 128) (wah2020060608); D: individuals collected in GAS (2n = 128) (wah2020062102); E: individuals collected in SJB (2n = ca. 150) (wah20191113003); F: individuals collected in JW1B1 (2n = ca. 150) (wah2020060611); G: individuals collected in HB1B (2n = 150) (wah2020052605); H: individuals collected in GGL1 (2n = ca. 180) (wah2020062003); I: individuals collected in GXM (2n = 64) (wah2020062202). All short names of populations were listed in Table 1.
FIGURES 8–10 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURES 8–10. Photomicrographs (left) and explanatory diagrams (right) of chromosomes of A. dentatum and A. mariesii. 8: sample of A. dentatum (2n = ca. 60) collected in HB2C (wah2020052604); 9: sample of A. mariesii (2n = ca. 120) from the SBSX (wah20191113002); 10: sample of A. mariesii complex (2n = 60) collected in HMMX (wah2020060609). All short names of HMMX, SBSX and HB2C were listed in Table 1.
FIGURES 1–2 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURES 1–2. Photomicrographs (left) and explanatory diagrams (right) of chromosomes of A. juxtapositum (2n = 64). 1: individuals collected in GSD (WAH029); 2: individuals collected in HCZ (wah20191115001). All short names were listed in Table 1.
FIGURE 3 in Pteris trifoliolata (Pteridaceae), a new brake fern species from karst area in Guangxi, China
FIGURE 3. Geographical distribution of Pteris trifoliolata H.J. Wei in Guangxi Zhuang Autonomous Region, China.
FIGURE 1. Pteris trifoliolata.—A. Habitat.—B in Pteris trifoliolata (Pteridaceae), a new brake fern species from karst area in Guangxi, China
FIGURE 1. Pteris trifoliolata.—A. Habitat.—B. Habit (individual plant).—C. Adaxial view of fertile lamina.—D. Sterile lamina.—E. Abaxial view of fertile lamina.—F. Rhizome and stipes.—G. Abaxial view of fertile pinna.—H. Adaxial view of fertile pinna.
Supplementary material 5 from: Chao Y-S, Ebihara A, Chiou W-L, Huang Y-M (2017) Pteris latipinna sp. nov. (Pteridaceae), a new species segregated from Pteris fauriei. PhytoKeys 85: 95-108. https://doi.org/10.3897/phytokeys.85.14884
Figure S5. : Explanation note: Holotype of Pteris wulaiensis C.M. Kuo in TAI (S.-J. Moore4383, TAI283138).
Supplementary material 2 from: Chao Y-S, Ebihara A, Chiou W-L, Huang Y-M (2017) Pteris latipinna sp. nov. (Pteridaceae), a new species segregated from Pteris fauriei. PhytoKeys 85: 95-108. https://doi.org/10.3897/phytokeys.85.14884
Figure S2. : Explanation note: Type material of Pteris fauriei var. minor Hieron. in B (U. Fauriei 685, B200128109).
Supplementary material 1 from: Chao Y-S, Ebihara A, Chiou W-L, Huang Y-M (2017) Pteris latipinna sp. nov. (Pteridaceae), a new species segregated from Pteris fauriei. PhytoKeys 85: 95-108. https://doi.org/10.3897/phytokeys.85.14884
Figure S1. : Explanation note: Type material of Pteris fauriei Hieron. var. fauriei in B (B20012819).
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