Hybrid Vigor in Science

Hybrid vigor in science.

When I was president of the U.S. National Academy of Sciences, I came to believe that the future success of humanity may depend on learning to use the tools of science—including the collection of objective evidence on what works and why—at all levels of decision-making. Thus, the National Academies have repeatedly addressed questions such as “How can we make a science out of education?” or “How...

Hybrid mimics and hybrid vigor in Arabidopsis.

F1 hybrids can outperform their parents in yield and vegetative biomass, features of hybrid vigor that form the basis of the hybrid seed industry. The yield advantage of the F1 is lost in the F2 and subsequent generations. In Arabidopsis, from F2 plants that have a F1-like phenotype, we have by recurrent selection produced pure breeding F5/F6 lines, hybrid mimics, in which the characteristics o...

Alternative Hypotheses of Hybrid Vigor.

Embryological Aspects of Hybrid Vigor in Pines.

Embryological Aspects of Hybrid Vigor in Pines: Color Reaction of Vitamin A on Acid Earths: DR. PROFESSOR JOHN T. BUCHHOLZ .............................................. 135 GERDA GERNSHEIM MAYER and DR. HARRY SOBOTKA. Correction on "Chronic Intermittent Obituqary: Anoxia . . . ": PROFESSOR WARD C. HALSTEAD. Nevin M. Fenneman: DR. RAYMOND WALTERS. 142 How Stentor Anchors Itself: PRoFEssSOR E. A...

Role of DNA methylation in hybrid vigor in Arabidopsis thaliana.

Hybrid vigor or heterosis refers to the superior performance of F1 hybrid plants over their parents. Heterosis is particularly important in the production systems of major crops. Recent studies have suggested that epigenetic regulation such as DNA methylation is involved in heterosis, but the molecular mechanism of heterosis is still unclear. To address the epigenetic contribution to heterosis ...