Dominance, Overdominance and Epistasis Condition the Heterosis in Two Heterotic Rice Hybrids

• Published in: Genetics (Austin) Vol. 180; no. 3; pp. 1725 - 1742
• Main Authors: Li, Lanzhi, Lu, Kaiyang, Chen, Zhaoming, Mu, Tongmin, Hu, Zhongli, Li, Xinqi
• Format: Journal Article
• Language: English
• Published: United States Genetics Soc America 01.11.2008; Genetics Society of America
• Subjects: additive effect; additive gene effects; agronomic traits; Chromosome Mapping; Crosses, Genetic; Data collection; digenic interactions; dominance (genetics); dominant effect; epistasis; Epistasis, Genetic; gene interaction; Gene mapping; Genes, Dominant; Genes, Plant; Genetic Linkage; Genetic Markers; genetics; grain yield; heterosis; Hybrid Vigor; Hybrid Vigor - genetics; Hybrids; Inbreeding; Investigations; Models, Genetic; Oryza; Oryza - genetics; Oryza sativa; overdominance; overdominant effect; Phenotype; phenotypic variation; Quantitative Trait Loci; recombinant inbred lines; Rice; Studies

Two recombinant inbred (RI) populations having 194 and 222 lines each, derived, respectively, from a highly heterotic inter- (IJ) and intrasubspecific (II) hybrid, were backcrossed to their respective parents. The RI and two backcross populations along with F1 and its two parents of each hybrid were...