圆果黄麻花青素的遗传研究

圆果黄麻含花青素细胞主要分布在皮层组织最外一层细胞中。含花青素细胞的相对数量和颜色深浅决定着植株外部色素的强度与分布。遗传上不带有色素原基因C的全绿色品种,任何时候任何部位都不存在花青素细胞。六个品种(永安黄麻、闽侯白皮、红铁骨、平和竹蒿麻、古农红皮和快早红)的五个杂交组合试验表明,回果黄麻古农红皮褐红色的色素表型由复等位基因A~B所决定,其作用强度位于A~D与A~L之间,即A~D—A~B—A~L—A—a。古农红皮、红铁骨和闽侯白皮的基因型分别为CCA~BA~Brr、CCAArr和CCaarr。圆果黄麻花青素的遗传除了受C、A、R三对主效基因控制外,还涉及到修饰因子。

GENETICAL STUDIES OF ANTHOCYANIN PIGMENTATION IN JUTE ( CORCHORUS CAPSULARIS L. )

The cells containing anthocyanidin in jute (Corchorus capsularis L.) exist in the outmost layer of the cortex, just below the epidermis. The comparative number and the colour of the cells vary with different anthocyanin pigmentation patterns that resolute to the intensity and distribution of anthocyanin pigment in the plant body. One recently discovered allele A"in the allelomorphic series for pigment development in Corchorus capsularis produces brown red colour on the stem, petiole, veins, and stipule, etc. in the presence of the chromogen gene C. The inheritance of anthocyanin pigmentation in Corchorus capsularis is found to be controlled by such major genes as C, A, R, as well as some modifying genes. The later may cause almost serial variation in some crosses.