Fig. 9

Fluorescence quantitative expression levels of 10 PdABC genes. A Expression levels in five tissues of ‘Wanfeng’ almond: leaves, sepals, petals, pollen, and pistils. B Expression levels at six developmental stages of ‘Wanfeng’ almond flowers: A1 (Bud stage), A2 (Enlargement stage), A3 (Inflorescence elongation stage), A4 (Small bud stage), A5 (Large bud stage), and A6 (Full blooming stage). C Expression levels under freezing stress at six temperature conditions in dormant one-year-old branches of ‘Wanfeng’ almond. CK: —5 °C. D Expression levels under four salt stress conditions in leaves of ‘Amanisha’ almond. CK: 0 mM