Publisher Summary On a worldwide basis, plant breeding has been one of the most
successful technologies developed in modern agriculture: its methods are opportunistic and …

QTL mapping is an increasingly useful approach to the study and manipulation of complex
traits important in agriculture, evolution, and medicine. The molecular dissection of …

Although extensive work has been done on the relationship between population size and
the risk of extinction due to demographic and environmental stochasticity, the role of genetic …

Two quantitative trait loci (QTL) controlling differences in plant and inflorescence
architecture between maize and its progenitor (teosinte) were analyzed. Complementation …

A set of 194 F7 lines derived from a subspecific rice cross showing strong F1 heterosis was
backcrossed to the two parents. The materials (388 BC1F7 lines, 194 F8 lines, two parents …

We present a new parameterization of physiological epistasis that allows the measurement
of epistasis separate from its effects on the interaction (epistatic) genetic variance …

Although it is widely acknowledged that the gradual accumulation of mildly deleterious
mutations is an important source of extinction for asexual populations, it is generally …

The objective of this study was to use restriction fragment length polymorphisms (RFLPs) to
determine the genetic location and effects of genomic regions controlling plant height in …

Rapeseed cultivars (Brassica napus L.) can be classified into annual and biennial groups
according to their requirement for vernalization in order to induce flowering. The genetic …

Two competing genetic hypotheses for heterosis, dominance and overdominance, have
been championed to explain positive correlations between allozyme heterozygosity and …