Setaria

Darmency, Henri; Dekker, Jack

doi:10.1007/978-3-642-14255-0_15

Cited by 7 publications

(2 citation statements)

References 105 publications

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“…Brutnell et al, (2010) proposed to make this weed a model species for C4 photosynthesis research [1], and there is a progressive support and acceptance to the proposal [2,3]. About 125 species are identified under genus Setaria [4], and S. viridis is considered the ancestral stock of this genus. Allozyme assay has shown that foxtail millet (S. italica) was the domesticated form of the S. viridis [5].…”

Section: Introductionmentioning

confidence: 99%

Study of Flowering Pattern in Setaria viridis, a Proposed Model Species for C4 Photosynthesis Research

et al. 2013

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Green foxtail millet (Setaria viridis) has NADP-ME type of C4 photosynthesis. Because of its short life cycle, small genome size of ∼515 Mb, small plant stature, high number of seed set, simple growth requirements, and wide adaptability, this diploid (2 = 18) weed is proposed to be a model species for the study of C4 photosynthesis. It is also a representative of bioenergy grasses and a model for genetic study of invasive weeds. Despite having all traits of a model species, it is difficult to cross-pollinate because its flowering behavior is not well studied. We used time lapse digital recording to study the flowering time and pattern along a single panicle. We found that flowering in Setaria was triggered by the darkness of the night and when the temperature was lower than 35 ∘ C. The anthesis of all the spikelets in a panicle took up-to three nights flowering from 9:30 pm to 10:00 am in the morning. Each spikelet has three phases of anthesis during which pollination occurs. A spikelet remains open for less than three hours. The pollination time for each spikelet is less than 60 minutes. Information from this study will facilitate the geneticists and plant breeders to plan for efficient crossing of Setaria.

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Section: Introductionmentioning

confidence: 99%

Study of Flowering Pattern in Setaria viridis, a Proposed Model Species for C4 Photosynthesis Research

et al. 2013

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“…The Setaria weed species group is one of the most successful terrestrial plants on earth, being able to colonize, adapt and endure a plethora of disturbed habitats in temperate, tropical and subtropical regions. Members of this species are endowed with the ability to tolerate high soil salinity, soil drought, tillage and extreme temperatures ( Darmency and Dekker, 2011 ). Although this ability has been attributed to the vast genotypic and phenotypic biodiversity within the Setaria species, it is possible that associations with endophytic nitrogen-fixing symbionts aid in enduring survival in detrimental conditions.…”

Section: Discussionmentioning

confidence: 99%

Roots and Panicles of the C4 Model Grasses Setaria viridis (L). and S. pumila Host Distinct Bacterial Assemblages With Core Taxa Conserved Across Host Genotypes and Sampling Sites

et al. 2018

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Virtually all studied plant tissues are internally inhabited by endophytes. Due to their relevance for plant growth and health, bacterial microbiota of crop plants have been broadly studied. In plant microbiome research the root is the most frequently addressed environment, whereas the ecology of microbiota associated with reproductive organs still demands investigation. In this work, we chose the model grasses Setaria viridis and Setaria pumila to better understand the drivers shaping bacterial communities associated with panicles (representing a reproductive organ) as compared to those associated with roots. We collected wild individuals of both grass species from 20 different locations across Austria and investigated the bacterial assemblages within roots and ripe grain-harboring panicles by 16S rRNA gene-based Illumina sequencing. Furthermore, plant samples were subjected to genotyping by genetic diversity-focused Genotyping by Sequencing. Overall, roots hosted more diverse microbiota than panicles. Both the plant organ and sampling site significantly shaped the root and panicle-associated microbiota, whereas the host genotype only affected root communities. In terms of community structure, root-specific assemblages were highly diverse and consisted of conserved bacterial taxa. In contrast, panicle-specific communities were governed by Gammaproteobacteria, were less diverse and highly origin-dependent. Among OTUs found in both plant tissues, relative abundances of Gammaproteobacteria were higher in panicles, whereas Rhizobiales dominated root communities. We further identified core and non-core taxa within samples of both Setaria species. Non-core taxa included members of the Saccharibacteria and Legionelalles, while core communities encompassed eleven OTUs of seven bacterial orders, together with a set of ten panicle-enriched OTUs. These communities were widespread across root and panicle samples from all locations, hinting toward an evolved form of mutualism through potential vertical transmission of these taxa within Setaria species.

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Weeds as crop companions

Krähmer

2016

Atlas of Weed Mapping

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Setaria

Cited by 7 publications

References 105 publications

Study of Flowering Pattern in Setaria viridis, a Proposed Model Species for C4 Photosynthesis Research

Study of Flowering Pattern in Setaria viridis, a Proposed Model Species for C4 Photosynthesis Research

Roots and Panicles of the C4 Model Grasses Setaria viridis (L). and S. pumila Host Distinct Bacterial Assemblages With Core Taxa Conserved Across Host Genotypes and Sampling Sites

Weeds as crop companions

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