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日本岛根大学、京都府立大学和千叶县Kazusa DNA研究所的团队近日透露，已破解樱花代表品种染井吉野樱的基因组，未来或能够准确预测开花时间。

科研团队采集岛根大学拥有的农园中约140个品种的樱花、以及被视为染井吉野樱原木的东京上野公园树木的组织，成功破解其DNA。

结果证实染井吉野樱的祖先为江户彼岸和大岛樱两个品种。该团队还在开花前一年调查花蕾基因的活动，锁定了与开花有关的基因。

此外，研究员还找到被称为成花素的基因与开花存在部分关系，获知抑制成花素活动的另一种基因在冬天以后由于长时间被置于低温状态下而活动减弱，成花素开始活动后促进开花。