Optimization of crop productivity in tomato using induced mutations in the florigen pathway  

Oleh:

Soon, Ju Park ; Ke, Jiang ; Lior, Tal ; Yoav, Yichie ; Oron, Gar

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Nature Genetics vol. 46 no. 12 (Dec. 2014), page 1337–1342.

Ketersediaan

Perpustakaan FK Nomor Panggil: N12.K Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Naturally occurring genetic variation in the universal florigen flowering pathway has produced major advancements in crop domestication1, 2, 3, 4, 5, 6, 7, 8, 9, 10. 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.

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