Plant breeding changes the inherited characteristics of cultivated plants by choosing parents, generating variation and selecting descendants. Crosses followed by repeated selection can combine disease resistance with useful yield or quality traits. Genetic recombination determines which combinations can be recovered, while linkage drag can preserve undesirable neighbouring material.
Evaluation across environments matters because a selected genotype need not retain the same advantage under drought, different soils or a different pathogen. Experiments manipulating chromosomal crossovers investigate a mechanism that limits how readily useful parental variants can be separated and combined.[ref]
Unleashing meiotic crossovers in crops by Delphine Mieulet and others. 2018, primary research on increased crossover formation
Plant breeding is the science and practice of altering the genetic makeup of plants to create desired traits and improve their quality, yield, resistance to diseases and pests, adaptability to environmental conditions, and other characteristics. This process can involve both traditional techniques and modern biotechnological methods. ### Key Concepts in Plant Breeding: 1. **Genetic Variation**: The basis of plant breeding is genetic variation, which can be found within wild species, cultivated varieties, and between different plant species.
New to topics? Read the docs here!