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Commit bf6ad06d authored by Gesa Helmsorig's avatar Gesa Helmsorig
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- /studies/generating_lwd1_mutants/protocols/plant_material_growth_conditions.md
- /studies/generating_lwd1_mutants/README.md
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**Generating *lwd1* mutants** ## Generating *lwd1* mutants
Using CRISPR-Cas9 to generate *lwd1* mutants to confirm *LWD1* as the gene underlying the *eam7* locus. GP-fast embryos were transformed with vectors carrying sgRNAs that target the start or the end of the *LWD1* coding sequence. The resulting T0 plants were genotyped to screen for different induced mutations. Promising T1 plants were sown, and genotyped again. From this, three different homozygous mutants were selected for gene expression analysis and phenotyping: *lwd1-26*, *lwd1-390* and *lwd1-402*. Using CRISPR-Cas9 to generate *lwd1* mutants to confirm *LWD1* as the gene underlying the *eam7* locus. GP-fast embryos were transformed with vectors carrying sgRNAs that target the start or the end of the *LWD1* coding sequence. The resulting T0 plants were genotyped to screen for different induced mutations. Promising T1 plants were sown, and genotyped again. From this, three different homozygous mutants were selected for gene expression analysis and phenotyping: *lwd1-26*, *lwd1-390* and *lwd1-402*.
**study overview** **Study overview:**
WT transformation plants (GP-fast) input: WT transformation plants (GP-fast)
-> assay: embryo transformation -> assay: embryo transformation
output: T0 mutant plants output: T0 mutant plants
...@@ -19,4 +19,6 @@ Using CRISPR-Cas9 to generate *lwd1* mutants to confirm *LWD1* as the gene under ...@@ -19,4 +19,6 @@ Using CRISPR-Cas9 to generate *lwd1* mutants to confirm *LWD1* as the gene under
output: T1 mutant genotype info output: T1 mutant genotype info
-> assay: plant propagation -> assay: plant propagation
output: T2 mutant plants (used in studies gene_expression_lwd1_mutants" and "phenotyping_lwd1_mutants) output: T2 mutant plants (used in studies
\ No newline at end of file gene_expression_lwd1_mutants and
phenotyping_lwd1_mutants)
\ No newline at end of file
**Plant material and growth conditions** ## Plant material and growth conditions
**plant material** **Plant material:**
species: Hordeum vulgare Species: *Hordeum vulgare*
Genotypes:
- GP-fast: Ppd-H1 introgression line in Golden Promise background, lwd1 mutant background, Gol et al. (2021) - GP-fast: Ppd-H1 introgression line in Golden Promise background, lwd1 mutant background, Gol et al. (2021)
**growth condtions** **Growth condtions:**
parents:
- long day: (LD) 16h light / 8h dark, 20/16 °C, 60% humidity, ~ 250 PAR) - long day: (LD) 16h light / 8h dark, 20/16 °C, 60% humidity, ~ 250 PAR)
- 1.5 L pots (HerkuPlast Kubern GmbH, pot volume 75 cm^3) - 1.5 L pots (HerkuPlast Kubern GmbH, pot volume 75 cm^3)
- Einheitserde ED73 (Einheitserde Werkverband e.V.) with 7% sand and 4 g/L Osmocote Exact Hi.End 3-4M, 4th generation (ICL Group Ltd.) - Einheitserde ED73 (Einheitserde Werkverband e.V.) with 7% sand and 4 g/L Osmocote Exact Hi.End 3-4M, 4th generation (ICL Group Ltd.)
- F1 crosses:
- short day (SD): 8h light / 16h dark, 20/16 °C, 60% humidity, ~ 250 PAR)
- 7x7x7.5 cm pots (pot volume: 367.5 cm^3)
- Einheitserde ED73 (Einheitserde Werkverband e.V.) with 7% sand and 4 g/L Osmocote Exact Hi.End 3-4M, 4th generation (ICL Group Ltd.)
**References**
Druka A, Franckowiak J, Lundqvist U, Bonar N, Alexander J, Houston K, Radovic S, Shahinnia F, Vendramin V, Morgante M, et al. Genetic dissection of barley morphology and development. Plant Physiol. 2011:155(2):617–627. https://doi.org/10.1104/pp.110. **References:**
166249
Gol L, Haraldsson EB, von Korff M. Ppd-H1 integrates drought stress signals to control spike development and flowering time in barley. J Exp Bot. 2021:72(1):122–136. https://doi.org/10.1093/jxb/eraa261 Gol L, Haraldsson EB, von Korff M. Ppd-H1 integrates drought stress signals to control spike development and flowering time in barley. J Exp Bot. 2021:72(1):122–136. https://doi.org/10.1093/jxb/eraa261
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