Cotton Cultivar PM 2140 B2RF Trait Stability
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Solution Overview
Problem
Cotton breeding is a time-consuming and unpredictable process due to the complexity of inheritance and the lack of control over genetic combinations, making it difficult to develop superior cotton cultivars with desired traits such as higher fiber yield, disease resistance, and environmental tolerance.
Innovation Solution
The development of the cotton cultivar PM 2140 B2RF, which incorporates specific traits like herbicide resistance, insect resistance, and disease resistance through genetic engineering and backcrossing techniques, along with the use of regenerable cells in tissue culture for consistent physiological and morphological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding methods are used to develop new cotton cultivars, then genetic diversity and trait combination are improved, but the breeding process becomes time-consuming and unpredictable
Solution Approach 1:
The patent applies preliminary action by pre-selecting parental lines with desired traits (herbicide resistance, insect resistance, disease resistance, fiber quality) before crossing. This advance preparation of parental germplasm with known desirable characteristics reduces the time needed for subsequent selection and evaluation, while still achieving diverse trait combinations in the offspring.
2Reliability
If multiple generations of selection and evaluation are performed to ensure trait stability, then reliability of desired traits is improved, but the breeding program complexity increases
Solution Approach 1:
The patent implements feedback by systematically evaluating offspring for the presence and stability of desired traits across generations. The multi-generation selection and evaluation process provides continuous feedback on trait expression, allowing breeders to confirm reliability while managing program complexity through structured assessment protocols.
3Measurement precision
If large populations are grown and evaluated to identify superior genetic combinations, then selection accuracy is improved, but resource expenditure increases
Solution Approach 1:
The patent reduces resource expenditure by pre-evaluating parental lines for key traits before crossing, and by using molecular markers or selective phenotyping in early generations to identify promising offspring. This preliminary screening allows focused evaluation of smaller, more targeted populations, maintaining selection accuracy while reducing the overall quantity of plants that need to be grown and assessed.
Data Source
AI summary
A cotton cultivar, designated PM 2140 B2RF, is disclosed. The invention relates to the seeds of cotton cultivar PM 2140 B2RF, to the plants of cotton PM 2140 B2RF and to methods for producing a cotton plant produced by crossing the cultivar PM 2140 B2RF with itself or another cotton variety. The invention further relates to hybrid cotton seeds and plants produced by crossing the cultivar PM 2140 B2RF with another cotton cultivar.