Tomato Plants with Stable Two Leaves Between Trusses Phenotype
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Solution Overview
Problem
Current tomato breeding efforts face challenges in stabilizing the 'two leaves between trusses' phenotype, which is associated with increased fruit yield, as it is not always stable when introduced from Solanum pennelli into Solanum lycopersicum, leading to inconsistent yield improvements.
Innovation Solution
Combining the SP3D and SP genes or their promoter sequences from Solanum pennelli into Solanum lycopersicum plants, either in a heterozygous or homozygous form, to achieve a stable 'two leaves between trusses' phenotype, thereby increasing fruit yield by up to 30% through transcriptional regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the SP3D gene from Solanum pennelli is introduced into Solanum lycopersicum to achieve the two leaves between trusses phenotype, then fruit yield increases, but the phenotype stability deteriorates
Solution Approach 1:
The patent combines two genes (SP3D and SP) from Solanum pennelli into Solanum lycopersicum to achieve a stable two leaves between trusses phenotype. The merging of these two genetic elements resolves the instability issue that occurred when only SP3D was introduced alone, while maintaining the yield increase benefit.
Solution Approach 2:
The invention creates a composite genetic structure by introducing both SP3D and SP genes together. This composite approach, where multiple genetic components work in combination, provides phenotypic stability that neither gene alone could achieve, while maintaining the productivity improvement.
2Productivity
If conventional breeding methods are used to increase fruit yield, then some yield improvement is achieved, but the improvement rate is insufficient
Solution Approach 1:
The patent changes the genetic parameters of the tomato plant by introducing foreign genes (SP3D and SP) from a different species. This parameter change at the genetic level leads to a stable phenotypic change (two leaves between trusses) that consistently improves fruit yield, overcoming the limitations of conventional breeding.
Data Source
AI summary
Provided herein are Solanum lycopersicum plants with increased fruit yield and to seeds or fruits of the present Solanum lycopersicum plants. Also provided herein are methods for increasing the fruit yield of Solanum lycopersicum plants. Further provided are fruits and seeds of the present Solanum lycopersicum plants. Solanum lycopersicum plant with increased fruit yield including the SP3D and SP gene, or at least the promoter sequence thereof, of Solanum pennelli or another Solanum species such as Solanum neorickii, Solanum chmielewskii, Solanum chilense, Solanum parviflorum, Solanum pimpinellifolium, and Solanum peruvianum.