Optimization of crop productivity in tomato using induced mutations in the florigen pathway
| Autor: | Ke Jiang, Dani Zamir, Yuval Eshed, Oron Gar, Soon Ju Park, Zachary B. Lippman, Lior Tal, Yoav Yichie |
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| Rok vydání: | 2014 |
| Předmět: |
Crops
Agricultural Heterozygote Genotype Amino Acid Motifs Meristem Flowers medicine.disease_cause chemistry.chemical_compound Solanum lycopersicum Two-Hybrid System Techniques Arabidopsis Genetic variation Botany Genetics medicine RNA Messenger Allele Gene Transcription factor Alleles In Situ Hybridization Florigen Plant Proteins Mutation biology fungi Chromosome Mapping food and beverages Indeterminate growth biology.organism_classification Plant Leaves Phenotype chemistry Transcriptome Plant Shoots |
| Zdroj: | Nature Genetics. 46:1337-1342 |
| ISSN: | 1546-1718 1061-4036 |
| Popis: | Naturally occurring genetic variation in the universal florigen flowering pathway has produced major advancements in crop domestication. However, variants that can maximize crop yields may not exist in natural populations. Here we show that tomato productivity can be fine-tuned and optimized by exploiting combinations of selected mutations in multiple florigen pathway components. By screening for chemically induced mutations that suppress the bushy, determinate growth habit of field tomatoes, we isolated a new weak allele of the florigen gene SINGLE FLOWER TRUSS (SFT) and two mutations affecting a bZIP transcription factor component of the 'florigen activation complex' (ref. 11). By combining heterozygous mutations, we pinpointed an optimal balance of flowering signals, resulting in a new partially determinate architecture that translated to maximum yields. We propose that harnessing mutations in the florigen pathway to customize plant architecture and flower production offers a broad toolkit to boost crop productivity. |
| Databáze: | OpenAIRE |
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