摘要
Cleistogamy involves the shedding of pollen within an enclosed flower. In barley, this trait is determined by the presence of a recessive allele at the gene Clyl, a member of the AP2 gene family. Here we show that the Clyl ortholog in einkorn （diploid） wheat （Triticum monococcum） TmAP2 shares a similar structure and identical pattern of transcription as Clyl. The transcript abundance of TmAP2 was high in the spike around the time of anthesis, but low in the leaf, plumule and radicle. The TmAP2 transcript was cleaved at its miR172 target site. Flower gaping at anthesis in einkorn wheat is induced by the expansion of the lodicules.
Cleistogamy involves the shedding of pollen within an enclosed flower. In barley, this trait is determined by the presence of a recessive allele at the gene Clyl, a member of the AP2 gene family. Here we show that the Clyl ortholog in einkorn （diploid） wheat （Triticum monococcum） TmAP2 shares a similar structure and identical pattern of transcription as Clyl. The transcript abundance of TmAP2 was high in the spike around the time of anthesis, but low in the leaf, plumule and radicle. The TmAP2 transcript was cleaved at its miR172 target site. Flower gaping at anthesis in einkorn wheat is induced by the expansion of the lodicules.
基金
funded by the Japanese Ministry of Agriculture,Forestry and Fisheries (Genomics for Agricultural Innovation Grants No.TRG1004) to T.K.S.N.appreciates the award of a Japanese Government (Monbukagakusho:MEXT) scholarship
