Analysis of an F2 mapping population indicated that these genes are tightly linked and absent in non-noscapine-producing lines [ 34].
However, an examination of transmission ratio distortion patterns in the reciprocal BCIF mapping population indicates that this is likely not the case for many of the distorted regions identified.
Overall, the data for this mapping population indicate that the final oil yield is a composite trait, and that the vigour of the plants contributes most significantly to oil yield by producing plants with increased number of seeds.
Unsurprisingly, the total number of seeds produced per plant was the most significant contributor to the final seed yield (R = 0.972 and R = 0.948 for years 2 and 3), indicating that for mapping population G51 × CV, the number of seeds per plant is more important than the amount of oil per seed.
(C ) Structure analysis of mapping population.
Earlygold (abbreviation TxE) F2 mapping population [ 10].
Although no QTL for response was mapped in the HO population, one QTL (SSR1) was mapped in the SS population, indicating genetic variation for the trichome density response to leaf damage (plasticity).
Most of the metabolic variation observed among the ecotypes was successfully mapped using this RIL population, indicating that metabolic variation can be associated with simplified polymorphic patterns at specific chromosomal regions.
Similar analyses carried out for the mapping population D indicated: 10 distinct QTL clusters for bud flush (one onto LGs III, IV, X, and XII, and two onto LGs V, VI, and XI), 11 for bud set (one onto LGs I, II, III, VI, VIII, XI, and XII, and two onto LGs V and X), and 10 for height growth (one onto LGs I, II, III, and VIII, and two onto LGs IV, V, and X).
Another sophisticated analysis produced a map that summarized SARS hot spots by infection rate per 1,000 population, indicating that the urban population was at the highest risk.
