Hybrid Corn CH010397 CMS Trait Breeding

The patent employs self-service by utilizing naturally occurring cytoplasmic male sterility (CMS) systems where the plant's own cytoplasmic factors automatically prevent self-pollination. The CMS trait is inherited through the maternal line and inherently blocks pollen development without requiring external intervention or complex breeding protocols to enforce cross-pollination.

The patent applies parameter changes by exploiting variations in cytoplasmic inheritance patterns and nuclear-cytoplasmic interactions to control pollination. Different cytoplasmic types (sterile vs. fertile) are combined with specific nuclear backgrounds to create controlled breeding scenarios where cross-pollination is facilitated while self-pollination is prevented, without adding mechanical or procedural complexity.

The patent applies universality by developing inbred lines that serve multiple functions: they provide both the CMS trait for controlled pollination and multiple agronomic traits (yield, disease resistance, stress tolerance) simultaneously. The inbred lines are bred to be multi-functional, eliminating the need for separate breeding programs for different traits and reducing overall breeding complexity.

The patent merges multiple desirable traits into single inbred parental lines through conventional breeding and selection. By combining traits such as high yield potential, disease resistance, and stress tolerance within the same inbred line, the patent simplifies the breeding process and enables production of superior hybrids without requiring complex multi-line crossing schemes.