Mendel publishes his inheritance experiments

Mendel grew peas in a monastery in Brno and selected clearly distinguishable traits such as seed shape, colour, and plant height. Breeders had long observed resemblance without a consistent general explanation. Controlled pollination, identified parent lines, and repeated generations supplied specified conditions for comparison. He reported results in 1865 and published in 1866. Years of cultivation and counting turned reproduction in a garden into records that could be examined generation by generation.

References: [1]

Some hybrids displayed one parental trait, while another reappeared in subsequent offspring. Counts supported explanations involving segregation and combination of hereditary factors. Clear traits and larger numbers helped distinguish variation from general relationships. Experiments also examined the joint inheritance of different characteristics. Design and mathematical counting provided a way of tracing transmission rather than relying only on visual resemblance between a parent and its descendants.

References: [1]

The paper initially had limited influence, then received renewed attention around 1900. Breeding and cell research became connected within genetics. Chromosomes, genes, and molecular work supplied mechanisms, while linkage and other conditions modified simple ratios. The method expanded into crop improvement and medical genetics. Because parents, procedures, and counts were recorded, later investigators could reconsider the data and test earlier observations through explanations not available when the experiments were originally conducted.

References: [1]