生物谷報(bào)道：大家都知道萬物要結(jié)果的時(shí)候,，開花就會受到抑制,，所謂花后成果。其中的道理是什么呢,？是什么物質(zhì)和分子在其中起到關(guān)鍵作用,？今天出版的Science揭示了這一秘密。
Plants with a winter growth habit flower earlier when exposed for several weeks to cold temperatures, a process called vernalization. We report here the positional cloning of the wheat vernalization gene VRN2, a dominant repressor of flowering that is down-regulated by vernalization. Loss of function of VRN2, whether by natural mutations or deletions, resulted in spring lines, which do not require vernalization to flower. Reduction of the RNA level of VRN2 by RNA interference accelerated the flowering time of transgenic winter-wheat plants by more than a month.
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