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206 results for “chromosome number”
FIGURE 5 in Low and high elevation Heliosperma species (Caryophyllaceae)-insight based on chromosome number, pollen characters and seed micromorphology
FIGURE 5. Factorial analysis of mixed data (FAMD) of seeds characters and hierarchical clustering on its principal components (HCPC). Distribution of the quantitative variables (a). Distribution of the qualitative variables (b); 2-4rows—number of rows in crest; 1- 2chambers—number of hilum chambers; marginal/middle—hilum location; brown/black—colour of seed; present/lack—waxes in hilum chambers; matt/shiny—surface type. Variation of elevation variable (c). Variation of habitat variable (numbers correspond to NATURA 2000 codes) (d). Five clusters of species identified by Hierarchical Clustering on Principal Components (HCPC) (e). ALP—H. alpestre; MAC—H. macranthum; RET—H. retzdorffianum; NIC—H. nikolicii; OLI—H. oliverae; PUS—H. pusillum subsp. pusillum; ALB—H. pusillum subsp. albanicum; MARK—H. pusillum subsp. markgrafii; MON—H. pusillum subsp. monachorum; CAN—H. pusillum var. candavicum; CHROM—H. pusillum subsp. chromodontum.
FIGURE 4 in Low and high elevation Heliosperma species (Caryophyllaceae)-insight based on chromosome number, pollen characters and seed micromorphology
FIGURE 4. Seed microstructure in Heliosperma spp. a0–a3 and b0–b3 general seed view, c0–c3 view of cells near crest (dorsal view), d0–d3 view of the cells near the hilum (ventral view), e0–e3—view of the hilum. a0–e0—H. macranthum, a1–e1—H. pusillum subsp. chromodontum, a2–e2—H. retzdorffianum, a3–e3—H. pusillum ssp. markgrafii. Bars in a0–a3 = 500 µm, b0–b3 = 250 µm, c0–c3, d0–d3, e0–e3 = 30 µm.
FIGURE 3 in Low and high elevation Heliosperma species (Caryophyllaceae)-insight based on chromosome number, pollen characters and seed micromorphology
FIGURE 3. Capsules of Heliosperma macranthum (a) and H. retzdorffianum (b, c). Note seeds sticked to the pubescent plants (arrows in c).
Supplementary material 4 from: Soreng RJ, Gillespie LJ (2018) Poa secunda J. Presl (Poaceae): a modern summary of infraspecific taxonomy, chromosome numbers, related species and infrageneric placement based on DNA. PhytoKeys 110: 101-121. https://doi.org/10.3897/phytokeys.110.27750
Table 3. Data partition characteristics, summary statistics and models of the phylogenetic analyses : Explanation note: For each data partition (ITS, ETS, trnT-trnL-trnF, rpoB-trnC, MatK) and concatenated dataset (plastid and nuclear), the following are given: number of sequences, number of characters, number of parsimony informative (PI) characters, % parsimony informative characters, maximum parsimony tree length (L), number of most parsimonious trees, consistency index excluding uninformative characters (CI) and retention index (RI). Also given are the models used in the Bayesian analyses as determined using the Akaike information criterion (AIC) in jModeltest.
Supplementary material 3 from: Soreng RJ, Gillespie LJ (2018) Poa secunda J. Presl (Poaceae): a modern summary of infraspecific taxonomy, chromosome numbers, related species and infrageneric placement based on DNA. PhytoKeys 110: 101-121. https://doi.org/10.3897/phytokeys.110.27750
Table 2. Poa and outgroup samples used in the phylogenetic analyses : Explanation note: Poa and outgroup samples used in the phylogenetic analyses with subgeneric classification (subtribe for outgroups), voucher information and GenBank Accession numbers for each of the five DNA regions (ITS, ETS, trnT-trnL-trnF, matK, rpoB-trnC).
Supplementary material 1 from: Soreng RJ, Gillespie LJ (2018) Poa secunda J. Presl (Poaceae): a modern summary of infraspecific taxonomy, chromosome numbers, related species and infrageneric placement based on DNA. PhytoKeys 110: 101-121. https://doi.org/10.3897/phytokeys.110.27750
Table 1. Chromosome numbers in taxa of Poasubg.Secundae : Explanation note: Chromosome numbers in taxa of Poasubg.Secundae, with RJS' subspecies determinations and original determinations as published or found on herbarium sheets, literature reference, number of counts, voucher collection, country and state or province abbreviation and herbarium where deposited, if known. CI = Carnegie Institution. These numbers show the hexaploid nature of the species complex and the wide and differing ranges of chromosome numbers in each of the P.secunda subspecies.
Supplementary material 2 from: Soreng RJ, Gillespie LJ (2018) Poa secunda J. Presl (Poaceae): a modern summary of infraspecific taxonomy, chromosome numbers, related species and infrageneric placement based on DNA. PhytoKeys 110: 101-121. https://doi.org/10.3897/phytokeys.110.27750
David D. Keck's annotations of taxa here included in Poasecunda : Explanation note: The following taxa recognised by Keck, but included by us in P.secunda s.l., are given in the specimen annotation lists: P.ampla, P.canbyi, P.gracillima, P.incurva, P.juncifolia, P.nevadensis, P.sandbergii and P.scabrella. His lists focused on western Continental United States species but included some mainly non-arctic Alaskan, Canadian and Mexican (Baja California) records and some records of eastern United States species. Copies of the original typed lists are stored in the reprint files in the Grass Lab in the Department of Botany, Smithsonian Institution. Optical character recognition (OCR) was performed on the present selection to allow the lists to be searchable to a large degree. Keck's annotations are considered to be sound and to represent hundreds of historical collections widely distributed in herbaria as vouchers for P.secunda infraspecies. We treat P.ampla, P.juncifolia and P.nevadensis as varieties of P.secundasubsp.juncifolia (vars. ampla, juncifolia and nevadensis, respectively) in our revised classification. The remaining taxa are treated as varieties of P.secundasubsp.secunda , as follows: var. gracillima (P.gracillima), var. scabrella (P.scabrella) and var. secunda (P.canbyi, P.incurva, and P.sandbergii).
FIGURE 4. A–J in A new species of Paspalum, Notata group (Poaceae, Paspaleae), from the Cerrado biome, Brazil: description, chromosome number, and leaf blade anatomy
FIGURE 4. A–J. Transverse sections of the leaf blades of Paspalum species. A–C. P. cerradoense R.C. Oliveira & Valls, Oliveira et al. 2693 (holotype). D–F. P. cromyorhizon Trin. ex Döll, Valls et al. 9668. G–J. P. ionanthum Chase, Valls et al. 14288. A, D, G. Parenchyma in the midrib adaxial region (m) present (A) or absent (D, G) in the midvein region. B, E, I. Colorless cells (cc) under bulliform cells (bc) present (B) or absent (E, I). C, F, J. Fiber fascicle (ff) fills the leaf margin (C) or not (F, I). H. Adaxial leaf side, showing a stoma (arrow). Scales: A. 200 μm; D, G. 100 μm; B–C, E–F, H–J. 50 μm.
FIGURE 3 in A new species of Paspalum, Notata group (Poaceae, Paspaleae), from the Cerrado biome, Brazil: description, chromosome number, and leaf blade anatomy
FIGURE 3. Chromosomes of Paspalum cerradoense R.C. Oliveira & Valls, Oliveira & Fagg 2787 (paratype). Scale: 10 μm.
FIGURE 1. Paspalum cerradoense R.C. Oliveira & Valls. A. Habit. B. Inflorescence.A. Habit. B. Inflorescence. C in A new species of Paspalum, Notata group (Poaceae, Paspaleae), from the Cerrado biome, Brazil: description, chromosome number, and leaf blade anatomy
FIGURE 1. Paspalum cerradoense R.C. Oliveira & Valls. A. Habit. B. Inflorescence.A. Habit. B. Inflorescence. C. Segment of rachis with pedicels. D. Ligule region. E. Upper glume, detail of the subapical teeth in dorsal view. F. Upper glume, ventral view. G. Spikelet, dorsal view, showing upper glume. H. Spikelet, ventral view, showing lower lemma. I. Upper anthecium, ventral view. J. Upper anthecium, dorsal view.
Data from: Chromosome numbers, Sudanese wild forms, and classification of the watermelon genus Citrullus, with 50 names allocated to seven biological species
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Data from: The genetic contribution to sex determination and number of sex chromosomes vary among populations of common frogs (Rana temporaria)
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Data from: Cladogenetic and anagenetic models of chromosome number evolution: a Bayesian model averaging approach
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Data from: The impact of reconstruction methods, phylogenetic uncertainty and branch lengths on inference of chromosome number evolution in American daisies (Melampodium, Asteraceae)
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Tempo and mode in karyotype evolution revealed by a probabilistic model incorporating both chromosome number and morphology
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Figure 2 from: Astuti G, Bartolucci F, Bernardo L, Conti F, Peruzzi L (2019) Chromosome numbers for the Italian flora: 8. Italian Botanist 8: 117-121. https://doi.org/10.3897/italianbotanist.8.49156
Figure 2 Onobrychis alba (Waldst. & Kit.) Desv. subsp. echinata (Guss.) P.W.Ball, 2n = 14. Scale bar: 10 μm.
Fig. 3 in Contribution to chromosome numbers and phylogeny of Turkish Vincetoxicum Wolf (Apocynaceae, Asclepiadoideae)
Fig. 3. Phylogenetic tree of Vincetoxicum s. str., including Turkish samples (in bold) based on the combined dataset (ITS and trnT- trnL). The support values on branches indicate Jackknife (JK) and Posterior Probability (PP) higher than 50% and 0.7, respectively. Clade designations correspond to Liede-Schumann et al. (2016). Refer to Appendix 1 for accession abbreviations (G:Güven, M:Makbul).
Fig. 1 in Contribution to chromosome numbers and phylogeny of Turkish Vincetoxicum Wolf (Apocynaceae, Asclepiadoideae)
Fig. 1. Somatic metaphase chromosome (1 = light microscope; 2 = outline drawing). a. Vincetoxium canescens (Willd.) Decne. subsp. canescens (Güven 36 & Makbul, 2n=22). b. V. canescens (Willd.) Decne. subsp. pedunculata Browicz (Güven 51 & Makbul, 2n=22). c. V. funebre Boiss. & Kotschy (Güven 126 & Makbul, 2n=22). d. V. fuscatum (Hornem.) Rchb. subsp. boissieri (Kusn.) Browicz (Güven 35 & Makbul, 2n=44). e. V. fuscatum (Hornem.) Rchb. subsp. fuscatum (Güven 93 & Makbul, 2n=44). Scale bars = 5 µm.
Fig. 2 in Contribution to chromosome numbers and phylogeny of Turkish Vincetoxicum Wolf (Apocynaceae, Asclepiadoideae)
Fig. 2. Somatic metaphase chromosome (1 = light microscope; 2 = outline drawing). a. Vincetoxicum hirundinaria Medik. subsp. hirundinaria (Güven 135 & Makbul, 2n=22). b. V. parviflorum Decne. (Güven 80 & Makbul, 2n=22). c. V. scandens Sommier & Levier (Güven 30 & Makbul, 2n=22). d. V. speciosum Boiss. & Spruner (Güven 137 & Makbul, 2n=22). e. V. tmoleum Boiss. (Güven 72 & Makbul, 2n=22). Scale bars = 5 µm.
Figure 7 from: Astuti G, Bedini G, Ciccarelli D, Liu L, Tiburtini M, Peruzzi L (2020) Chromosome numbers for the Italian flora: 9. Italian Botanist 9: 101-110. https://doi.org/10.3897/italianbotanist.9.54973
Figure 7 Pulmonaria officinalis L. subsp. officinalis from Castelmonte (Prepotto, Udine), 2n = 16. Scale bar: 10 μm.
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OpenNeuro
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