Homozygous Bean Line RX 08075309 for Uniform Hybrid Progeny
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Solution Overview
Problem
Current crop breeding methods face challenges in developing uniform and stable bean varieties with desirable traits such as high yield, disease resistance, and uniform pod characteristics, often resulting in unpredictable performance due to genetic non-uniformity in hybrid plants.
Innovation Solution
The development of the bean line RX 08075309, which is a homozygous inbred line with specific traits like herbicide tolerance, insect resistance, and modified carbohydrate metabolism, achieved through pedigree selection and genetic transformation, ensuring uniformity and stability across generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to combine desirable traits from different varieties, then genetic diversity and trait combination are improved, but uniformity and predictability of performance deteriorate
Solution Approach 1:
The breeding program segments the population into distinct homozygous inbred lines through multiple generations of self-pollination and selection. This creates uniform parental lines that can be reliably crossed to produce uniform F1 hybrids, resolving the contradiction between trait combination and uniformity.
Solution Approach 2:
The patent applies preliminary action by developing homozygous inbred lines through extensive self-pollination and selection before creating the final cross. This preliminary breeding process ensures that the parental lines are genetically uniform and stable, which guarantees uniform F1 hybrid progeny when crossed.
2Stability of the object's composition
If self-pollination is used to develop homozygous inbred plants, then uniformity and true-breeding are improved, but genetic diversity and adaptability deteriorate
Solution Approach 1:
The patent merges the benefits of self-pollination (uniformity) and cross-pollination (genetic diversity) by using homozygous inbred lines derived from self-pollination as parents for controlled crosses. This combination produces uniform F1 hybrids that exhibit heterosis and genetic diversity while maintaining uniformity within the hybrid population.
3Reliability
If pedigree breeding and recurrent selection are used to develop inbred lines, then desirable traits are improved, but breeding time and complexity deteriorate
Solution Approach 1:
The patent uses copying by utilizing homozygous inbred lines that can be replicated and multiplied through self-pollination. Once a desirable inbred line is developed, it can be reproduced uniformly across multiple generations, reducing the time needed to establish stable parental lines for hybrid production.
Data Source
AI summary
The invention provides seed and plants of the bean line designated RX 08075309. The invention thus relates to the plants, seeds and tissue cultures of bean line RX 08075309, and to methods for producing a bean plant produced by crossing a plant of bean line RX 08075309 with itself or with another bean 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 bean line RX 08075309, including the pods and gametes of such plants.