Pearl Millet 53-1-1 Purple Plant 3 Gene Pigmentation
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Solution Overview
Problem
Current pearl millet cultivars lack a consistent and intense purple pigmentation that is not initially photo-dependent, limiting their aesthetic appeal and potential uses in ornamental and nutritional applications.
Innovation Solution
Development of the pearl millet cultivar 53-1-1, which exhibits intense purple coloration in leaves, stems, and grains due to the novel Purple Plant 3 (PP3) gene, where pigment formation initiates before emergence and is intensified by light, differing from existing cultivars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional pearl millet cultivars are used, then the plant can complete its growth cycle and produce grain, but the purple pigmentation is either absent or weak and not stable
Solution Approach 1:
The patent introduces a novel gene (PP3) that changes the genetic parameters of the plant, resulting in stable and intense purple pigmentation throughout the plant tissues. This gene modification transforms the conventional cultivar characteristics to achieve consistent coloration that maintains stability across different growth stages and environmental conditions.
2Ease of manufacture
If the purple pigmentation is intensified, then the aesthetic appeal and nutritional value are enhanced, but the breeding process becomes more complex
Solution Approach 1:
The patent extracts and isolates the specific gene responsible for purple pigmentation (PP3) from the complex genetic background. By identifying and separating this single gene, the breeding process is simplified, as farmers can focus on introducing this specific gene rather than managing complex multi-gene inheritance patterns.
Solution Approach 2:
The patent uses a carrier line (53-1-1) that acts as an intermediary to transfer the PP3 gene to other cereal varieties. This carrier line simplifies the breeding process by providing a stable platform that can be crossed with different varieties to introduce the purple pigmentation trait without requiring complex direct breeding programs.
3Ease of manufacture
If pigment formation initiates before emergence, then the coloration is more intense and widespread, but the photo-dependency is reduced
Solution Approach 1:
The patent implements preliminary action by initiating pigment formation before the plant emerges from the soil. The PP3 gene activates pigment synthesis during the embryonic stage and early root development, ensuring that purple coloration is already established in roots, stems, and leaves before emergence. This preliminary pigment accumulation creates intense and widespread coloration that is not dependent on post-emergence light exposure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The PP3 gene in cultivar 53-1-1 provides a stable, dominant purple coloration that is more intense and widespread within the plant, enhancing horticultural appeal and nutritional value, and can be used in breeding to introduce purple pigmentation into other cereal varieties.
Implementation Method 1
The 53-1-1 line also has a novel gene, designated Purple Plant 3 (PP3), which results in the purple pigmentation that develops in the leaf, stem, head and grain.
Implementation Method 2
the initial formation of pigment is not light induced, subsequent exposure to light further increases production to higher levels of intensity not found in other purple pearl millets
Data Source
AI summary
The invention relates to a pearl millet plant, seed, variety, parental line and hybrid. More specifically the invention relates to a pearl millet plant having a mutant allele that increases purple pigmentation in many plant parts. The invention relates to crossing inbreds, varieties, and hybrids containing the purple allele to produce novel types and hybrids of pearl millet and other compatible millet species, both for pigment extraction and ornamental purposes.