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桃一些早花种类雌雄配子体发育具有特殊性。甘肃桃（ＰｒｕｎｕｓｋａｎｓｕｅｎｓｉｓＲｅｈｄ．）、山桃（Ｐ．ｄａｖｉｄｉａｎａＦｒａｎｃｈｅｔ）和白碧桃（Ｐ．ｐｅｒｓｉｃａＢａｔｓｃｈ．ｆ．ａｌｂａ－ｐｌｅｎａＳｃｈｎｅｉｄ）花粉发育远远早于栽培桃（Ｐ．ｐｅｒｓｉｃａＳｉｅｂ．ｅｔＺｕｃｃ．），冬季已经形成花粉粒，栽培桃春季才形成花粉粒。桃与山桃的杂种后代花粉发育与山桃相似，而且深冬寒冷条件下仍能发育。山桃雌雄配子体的发育不同步。山桃雌配子体发育既早于栽培桃又表现各发育时期持续的时间较栽培桃长，二者雌配子体发育上最大的区别是，山桃冬前形成胚珠原基而后越冬，而栽培桃以子房阶段越冬，春季才形成胚珠原基。
Some early flowering peach male and female gametophyte development has particularity. Pollen development of Prunuskansuensis Rehd., P.davidiana Franchet and P.persica Batsch.f. alba-plenaSchneid was much earlier than that of P.persica.Sieb.etZucc. Pollen grains were formed in winter, Cultivation of peach spring before the formation of pollen grains. The pollen development of the hybrid offspring of peach and peach is similar to that of the peach, and it still develops under the condition of deep winter and cold. Peach male and female gametophyte development is not synchronized. The peach female gametophyte development earlier than the cultivated peach and the performance of the developmental duration longer than the cultivated peach, the two female gametophyte development biggest difference is that the pre-peach winter primordia formation and then winter, and the cultivation of peach to the ovary stage Winter, the formation of ovule primordia in spring.