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71 results for “Andropogon”
FIGURE 2 in Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
FIGURE 2. Diagram of the synflorescence of Andropogon lateralis (Norrmann 71). Figure abbreviations: TT: trophotagma; UIF: unit of inflorescence; SIZ: short internodes zone; LIZ: long internodes zone; IZ: Innovation zone; HZ: Inhibition zone; EZ: Enrichment zone; b: bract; p: prophyll.
FIGURE 3 in Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
FIGURE 3. Andropogon bicornis (Norrmann & Quarín 91). A. synflorescence structure; B. basal axillary paracladium (PcTT1) (1 in A); C. cross-section (level 4 in E); D. distal zone of the synflorescence (3 in A); E. PcTT of middle zone of the synflorescence (2 in A). Figure abbreviations: TT: trophotagma; UIF: unit of inflorescence; SIZ: short internodes zone; LIZ: long internodes zone; IZ: Innovation zone; HZ: Inhibition zone; EZ: Enrichment zone; PcTT: paracladium of the trophotagma of first degree; PcTT´: paracladium of the trophotagma of second degree; PcTT´´: paracladium of the trophotagma of third degree; PcTT´´´: paracladium of the trophotagma of fourth degree; MA: main axis; pf: prophyll. Crosses represent units of inflorescence.
FIGURE 4 in Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
FIGURE 4. Diagram of the distal region of the EZ main axis and PcTTs in A. hypogynus (Krapovickas 12081). Figure abbreviations: EZ: enrichment zone; UIF: Unit of inflorescence; lPZ: long paracladia of the unit of inflorescences subzone; sPZ: short paracladia subzone; TsP: terminal short paracladium; st: sterile distal leaf (= spatheole); PcTT: paracladium of the trophotagma; b: bract; p: prophyll; filled ellipses: sessile spikelets; open ellipses: pedicellate spikelets.
FIGURE 1 in Synflorescence analysis in South American species of Andropogon section Leptopogon (Andropogoneae, Poaceae): a tool to identify different ploidy levels
FIGURE 1. Diagram of the synflorescence of Andropogon selloanus (Norrmann 73). Figure abbreviations: TT: trophotagma; UIF: unit of inflorescence; SIZ: short internodes zone; LIZ: long internodes zone; IZ: Innovation zone; HZ: Inhibition zone; EZ: Enrichment zone; PcTT1: first paracladium of the trophotagma; PcTT2: second paracladium of the trophotagma; PcTT2´: paracladium of the trophotagma of second degree in the PcTT2; b: bract; p: prophyll.
FIGURE 2. Morphological comparison between A in Andropogon × guaraniticus (Andropogoneae, Poaceae): a name for a natural hybrid from northeastern Argentina
FIGURE 2. Morphological comparison between A. macrothrix (Norrmann 93), A. selloanus (Norrmann 99) and A. × guaraniticus (Norrmann 227, holotype). A. Detail of ligule. B. Unit of inflorescence. C. Middle or proximal pair of spikelets. D. Distal pair of spikelets. A–D. Drawn by Laura Ribulgo.
FIGURE 1 in Andropogon × guaraniticus (Andropogoneae, Poaceae): a name for a natural hybrid from northeastern Argentina
FIGURE 1. Andropogon × guaraniticus. A. Habit. B. Detail of ligule. C. Unit of inflorescence. D. Middle or proximal pair of spikelets. E. Distal pair of spikelets. F–J. Sessile spikelet. F. Spikelet, dorsal view. G. Upper lemma. H. Lower lemma. I. Upper palea. J. Detail of lodicules, stigma and stamens. Only two of the three stamens were drawn. A–J. Drawn by Laura Ribulgo from the holotype (Norrmann 227).
Data from: Adaptive genetic potential and plasticity of trait variation in the foundation prairie grass Andropogon gerardii across the US Great Plains' climate gradient: Implications for climate change and restoration
<p>Plant response to climate depends on a species' adaptive potential. To address this, we used reciprocal gardens to detect genetic and environmental plasticity effects on phenotypic variation and combined with genetic analyses. Four reciprocal garden sites were planted with three regional ecotypes of <i>Andropogon gerardii</i>, a dominant Great Plains prairie grass, using dry, mesic, wet ecotypes originating from western KS to Illinois that span 500 to 1,200 mm rainfall year<sup>-1</sup>. We aimed to answer: (1) What is the relative role of genetic constraints and phenotypic plasticity in controlling phenotypes? 2) When planted in the home site, is there a trait syndrome for each ecotype? 3) How are genotypes and phenotypes structured by climate? (4) What are implications of these results for response to climate change and use of ecotypes for restoration? Surprisingly, we did not detect consistent local adaptation. Rather, we detected co-gradient variation primarily for most vegetative responses. All ecotypes were stunted in western KS. Eastward, the wet ecotype was increasingly robust relative to other ecotypes. In contrast, fitness showed evidence for local adaptation in wet and dry ecotypes with wet and mesic ecotypes producing little seed in western KS. Earlier flowering time in the dry ecotype suggests adaptation to end of season drought. Considering ecotype traits in home site, the dry ecotype was characterized by reduced canopy area and diameter, short plants, and low vegetative biomass and putatively adapted to water limitation. The wet ecotype was robust, tall with high biomass and wide leaves putatively adapted for the highly competitive, light-limited Eastern Great Plains. Ecotype differentiation was supported by random forest classification and PCA. We detected genetic differentiation and outlier genes associated primarily with precipitation. We identified candidate gene GA1 for which allele frequency associated with plant height. Sourcing of climate adapted ecotypes should be considered for restoration.</p>
Data from: Single nucleotide polymorphism discovery via genotyping by sequencing to assess population genetic structure and recurrent polyploidization in Andropogon gerardii
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Data from: Ecotypes of an ecologically dominant prairie grass (Andropogon gerardii) exhibit genetic divergence across the U.S. Midwest grasslands environmental gradient
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Data from: Adaptive genetic potential and plasticity of trait variation in the foundation prairie grass Andropogon gerardii across the US Great Plains’ climate gradient: Implications for climate change and restoration
Open the record for dataset details and reuse information.
The transcriptional profiles of bluestem and Indian grass - Konza 2006 [Zea mays; Andropogon gerardii; Sorghastrum nutans]
GEO Series GSE35492. Zea mays; Andropogon gerardi; Sorghastrum nutans. 198 samples. Type: Expression profiling by array.
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