Sweet Corn Line SHY-6RLAN014 Homozygous Breeding
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Solution Overview
Problem
Current plant breeding methods face challenges in developing uniform sweet corn varieties with desirable traits such as resistance to diseases, pests, and environmental stresses, as they often result in unpredictable performance due to genetic non-uniformity among hybrid plants.
Innovation Solution
The development of the sweet corn line SHY-6RLAN014, which is homozygous and uniform, incorporating specific genetic loci for traits like male sterility, herbicide resistance, and disease resistance, achieved through backcrossing and genetic transformation, ensuring stability and consistency across generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding methods are used to develop sweet corn varieties, then multiple desirable traits can be combined, but genetic non-uniformity results in unpredictable performance
Solution Approach 1:
The breeding process is segmented into distinct phases: developing homozygous inbred lines through self-pollination, evaluating them individually, and then crossing selected lines to produce uniform hybrid F1 generation. This segmentation ensures genetic uniformity within each phase while allowing trait combination across phases.
Solution Approach 2:
Homozygous inbred lines are developed and evaluated before the final hybrid cross. This preliminary action ensures that parental lines have stable, uniform genetics, which guarantees uniform hybrid performance when crossed. The inbred lines serve as predetermined, reliable building blocks for the final variety.
2Stability of the object's composition
If self-pollination and selection over many generations are used to develop homozygous lines, then uniform true-breeding progeny are produced, but breeding time and complexity increase
Solution Approach 1:
The breeding system uses self-pollination of inbred lines to maintain genetic uniformity without requiring continuous human intervention for cross-pollination management. Once homozygous lines are established, they self-maintain their genetic composition, reducing ongoing breeding complexity and time requirements.
Solution Approach 2:
The breeding approach transitions from dynamic cross-pollination management to static self-pollination maintenance once inbred lines are established. This dynamic shift reduces time and complexity: the system moves from active breeding operations to passive maintenance of uniform genetics through self-pollination.
3Reliability
If cross-pollination between different homozygous lines is used to produce hybrids, then uniform hybrid population is obtained, but genetic diversity within hybrids is reduced
Solution Approach 1:
The hybrid system concentrates genetic diversity at the parental line level (local quality in the breeding program) while maintaining uniformity at the hybrid population level. Each inbred parent line possesses specific tailored genetics for desired traits, and their cross produces uniform hybrids that express a predetermined combination of these localized genetic qualities.
Data Source
AI summary
The invention provides seed and plants of the sweet corn line designated SHY-6RLAN014. The invention thus relates to the plants, seeds and tissue cultures of sweet corn line SHY-6RLAN014, and to methods for producing a sweet corn plant produced by crossing a plant of sweet corn line SHY-6RLAN014 with itself or with another sweet corn plant, such as a plant of another line. The invention further relates to seeds and plants produced by such crossing. The invention further relates to parts of a plant of sweet corn line SHY-6RLAN014, including the seed, pod, and gametes of such plants.