Wheat Cultivar SJ907-229 Breeding for Trait Introgression
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Solution Overview
Problem
Current wheat cultivars lack effective methods for introducing desirable traits such as herbicide tolerance, pest resistance, disease resistance, and modified metabolisms, which limits their adaptability and yield stability.
Innovation Solution
The development of wheat cultivar SJ907-229, which involves crossing with other wheat cultivars to introduce desired traits through backcrossing and genetic engineering, allowing for the selection of progeny plants with specific characteristics like herbicide resistance, insect resistance, and modified metabolisms, while maintaining the physiological and morphological characteristics of SJ907-229.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current wheat cultivars are used without genetic modification, then the cultivars maintain their original physiological and morphological characteristics, but they lack effective methods for introducing desirable traits such as herbicide tolerance, pest resistance, and disease resistance
Solution Approach 1:
The patent uses backcrossing as an intermediary method to transfer desirable traits from donor wheat lines into the SJ907-229 cultivar. By repeatedly crossing progeny back to the original cultivar, the method introduces herbicide tolerance, pest resistance, and disease resistance while maintaining the physiological and morphological characteristics of the parent cultivar through selection processes
2Reliability
If backcrossing and genetic engineering methods are used to introduce desired traits, then resistance to diseases, pests, and environmental stresses is enhanced, but the complexity of the breeding process increases
Solution Approach 1:
The patent employs preliminary selection of donor lines with specific desirable traits before initiating the backcrossing process. Molecular markers are used in advance to identify and select progeny that carry the desired resistance genes, streamlining the breeding process by eliminating unnecessary generations and reducing overall complexity despite the multi-step nature of backcrossing
3Stability of the object's composition
If multiple backcrossing generations are performed to introduce desired traits, then the physiological and morphological characteristics of SJ907-229 are maintained, but the time required for breeding increases
Solution Approach 1:
The patent implements feedback mechanisms through molecular marker-assisted selection at each backcrossing generation. By continuously monitoring the presence of desired resistance genes and the maintenance of parent cultivar characteristics, breeders can make informed decisions about when to continue or terminate backcrossing, optimizing the balance between trait introduction and time investment
Data Source
AI summary
A wheat cultivar, designated SJ907-229, is disclosed. The invention relates to the seeds, plants, and hybrids of wheat cultivar SJ907-229, and to methods for producing a wheat plant produced by crossing plants from wheat cultivar SJ907-229 with themselves or with plants from another wheat variety. The invention also relates to methods for producing a wheat plant containing in its genetic material one or more transgenes and to the transgenic wheat plants and plant parts produced by those methods. The invention also relates to wheat varieties or breeding varieties and plant parts derived from wheat cultivar SJ907-229, to methods for producing other wheat varieties, lines or plant parts derived from wheat cultivar SJ907-229, and to the wheat plants, varieties, and their parts derived from the use of those methods. The invention further relates to hybrid wheat seeds and plants produced by crossing wheat cultivar SJ907-229 with another wheat cultivar.