Abstract
Previous studies showed meiotic recombination frequencies were affected by sex, age and temperature in many different organisms. We established the method to detect genome-wide meiotic recombination in Arabidopsis. Using this method, we have already shown meiotic recombination frequencies were changed depending on sex and age; lower in female meiosis than male meiosis and in young age female meiosis than old age female meiosis.
To make clear the aging effect, we examined the meiotic recombination frequencies at main and lateral shoots generated from rosette leaves in long-day condition and at main shoot in short-day condition.
From these data, we would like to discuss the aging of shoot apical meristem involved in homologous recombination during meiosis.