【摘要】 实验结果表明：豌豆种子发育过程中单粒鲜重、ＤＮＡ和ＲＮＡ含量都随开花后日数增加而增加。其中豌豆开花第２１天，ＲＮＡ含量达最高峰，拖尾现象消失而趋于单一带区，ＤＮＡ的迁移率也降到最低，从而确定出豌豆开花后第２１天是基因转录活动降低的转折点，为种子蛋白质基因工程研究提供参考。更多还原

【Abstract】 Dynamics of DNA/RNA were studied during developing of pea seeds. The results showed that the fresh weight, RNA, DNA content per seed were increasing during developing of pea seeds. The RNA content per seed reached the maximum at 21 days after flowering, and tailing phenomenon disappeared into single band, the mobility of NDA was also fall the belowest. It is therefore proposed that a turning point of gene transcripting activation lowered is at 21 days after flowering.更多还原