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Application of fluorescent microscopic technique to interpret the pistils of diploids and tetraploids of Gossypium species

机译:荧光显微镜技术在棉属植物二倍体和四倍体雌蕊解释中的应用

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摘要

Self pollen pistils of six diploid genotypes (K 10, K 11, PA 255, DLSA 8, DL8A 16 and TKA 9410), three tetraploids (MCU 5, Sahana and MCU 12) and cross pollinated pistils of direct combination of above parents were collected at 2, 4, 6, 8, 10, 12, 24 and 36 h after pollination fixed in 6 : 3 : 1 (ethanol, chloroform, acetic acid) at 4-1 degrees C for 24 h. The softening of the pistil of diploid parents was optimum at 12N and 10N NaOH for 6 and 8 h duration, respectively, besides the tetraploids had 10N NaOH for 10 h as optimum. The optimum staining and better fluorescence were obtained when 0.25% aniline blue was dissolved in 0.1 N K3PO4 and kept for 10 h for both diploid and tetraploid.
机译:收集了六种二倍体基因型(K 10,K 11,PA 255,DLSA 8,DL8A 16和TKA 9410),三个四倍体(MCU 5,Sahana和MCU 12)的自花粉雌蕊和上述亲本的直接组合的交叉授粉雌蕊。授粉后的2、4、6、8、10、12、24和36 h在4-1摄氏度的6:3:1(乙醇,氯仿,乙酸)中固定24 h。二倍体亲代雌蕊的软化在12N和10N NaOH下分别持续6h和8h最佳,而四倍体的10N NaOH最佳持续10h。当将0.25%苯胺蓝溶于0.1 N K3PO4中并保持二倍体和四倍体均保持10 h时,可获得最佳染色和更好的荧光。

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