Corn Hybrid SVSD6316 Breeding Segmentation
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Solution Overview
Problem
Current plant breeding methods face challenges in developing uniform corn hybrids with desirable traits such as yield, resistance to insects and diseases, and environmental stress tolerance, due to the unpredictability of genetic uniformity in hybrid plants.
Innovation Solution
The development of corn hybrid SVSD6316, corn line SHY-6S18-3512GG, and corn line SYY-6S19-8202KK, which involve creating homozygous inbred plants through pedigree breeding and genetic engineering techniques like genome editing with engineered nucleases, to introduce specific traits like herbicide tolerance, insect resistance, and disease resistance, ensuring uniformity and desirable characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pedigree breeding and recurrent selection are used to develop inbred plants, then genetic diversity is increased, but genetic uniformity becomes unpredictable
Solution Approach 1:
The breeding program is divided into separate inbred line development segments (through multiple generations of selfing) and hybrid combination segments. This segmentation allows each inbred line to be developed with high genetic uniformity while the hybrid combination provides the desired genetic diversity and heterosis effects.
Solution Approach 2:
Multiple generations of selfing are performed in advance to develop homozygous inbred lines before crossing. This preliminary action ensures that the parental lines have stable, uniform genetics, which then produces predictable and uniform hybrid offspring when crossed.
2Manufacturing precision
If self-pollination is used to create homozygous inbred plants, then genetic uniformity is improved, but genetic diversity is reduced
Solution Approach 1:
The breeding process segments the development into inbred line creation (through selfing for uniformity) and hybrid combination (for diversity). Each inbred line is developed separately to homozygosity, then crossed with other inbred lines to create hybrids that combine diverse genetic traits while maintaining uniformity within each hybrid population.
3Adaptability or versatility
If cross-pollination between heterozygous plants is used, then genetic diversity is increased, but uniformity of hybrid population is reduced
Solution Approach 1:
Heterozygous plants are crossed only after their parental inbred lines have been developed through multiple generations of selfing to ensure homozygosity. This preliminary development of uniform parental lines ensures that the resulting hybrid F1 generation will be uniform, even though the hybrids themselves are heterozygous and genetically diverse.
Data Source
AI summary
The invention provides seed and plants of corn hybrid SVSD6316 and the parent lines thereof. The invention thus relates to the plants, seeds, and tissue cultures of corn hybrid SVSD6316 and the parent lines thereof and to methods for producing a corn plant produced by crossing such plants with themselves or with another corn plant, such as a plant of another genotype. The invention further relates to seeds and plants produced by such crossing. The invention further relates to parts of such plants, including the fruit and gametes of such plants.