학술논문
Optimization of crop productivity in tomato using induced mutations in the florigen pathway.
Document Type
Academic Journal
Author
Park SJ; Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, USA.; Jiang K; Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, USA.; Tal L; Department of Plant Sciences, Weizmann Institute of Science, Rehovot, Israel.; Yichie Y; Institute of Plant Sciences, Hebrew University of Jerusalem Faculty of Agriculture, Rehovot, Israel.; Gar O; Institute of Plant Sciences, Hebrew University of Jerusalem Faculty of Agriculture, Rehovot, Israel.; Zamir D; Institute of Plant Sciences, Hebrew University of Jerusalem Faculty of Agriculture, Rehovot, Israel.; Eshed Y; Department of Plant Sciences, Weizmann Institute of Science, Rehovot, Israel.; Lippman ZB; Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, USA.
Source
Publisher: Nature Pub. Co Country of Publication: United States NLM ID: 9216904 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1546-1718 (Electronic) Linking ISSN: 10614036 NLM ISO Abbreviation: Nat Genet Subsets: MEDLINE
Subject
Language
English
Abstract
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.