90D--91A;94A--B
90D--91A;94A--B
Induced on: DsubIn(O)3 DsubIn(O)4.
O-inversion polymorphisms vary on two time scales: short term seasonal changes repeated over the years superimposed on long-term directional changes. All the common arrangements show significant cyclic seasonal changes and all but one show significant long term trends. The degree of seasonality is different for different arrangements. Seasonal changes are significantly associated with the seasonal variation of climate, particularly the temperature and humidity.
The chromosomal inversion and enzymatic polymorphism variation in lines selected for high and low heat shock resistance are analysed.