Heterosis is a natural phenomenon where offspring (hybrids) outperform their parents in many agronomic traits, although exploited in breeding the mechanisms controlling heterosis remain elusive. Genetic distance between parents has been positively correlated with heterosis, yet does not adequately explain the phenomenon. Dividing lines from any crop into heterotic groups that provide optimal combining ability […]

Heterosis is a natural phenomenon where offspring (hybrids) outperform their parents in many agronomic traits, although exploited in breeding the mechanisms controlling heterosis remain elusive. Genetic distance between parents has been positively correlated with heterosis, yet does not adequately explain the phenomenon. Dividing lines from any crop into heterotic groups that provide optimal combining ability […]