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Deletion Mutations of the Self-incompatibility (S) Locus Induced by Gamma Irradiation in a Wild Diploid Species of Sweet Potato, Ipomoea trifida
Convolvulaceae S gene sporophytic self-incompatibility
2010/10/25
Gamma irradiation was used to induce mutations affecting self-incompatibility (SI) in diploid Ipomoea trifida. Plants (S1 homozygote) with developing flower buds were exposed with gamma rays of 10 and...
以甘薯近缘野生种I. trifida (2x)为探针，与I. trifida (4x) 2个株系“695104”和“697288”的体细胞染色体进行基因组荧光原位杂交，结果显示，2株系都与I. trifida (2x)有很近的亲缘关系，但2株系的信号存在差异。“695104”几乎所有染色体整条都有均匀明亮的信号，应为I. trifida (2x)基因组直接加倍而来；而 “697288”与“6951...