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白色卵形质是限性卵色品种的唯一基础形质,要选育限性卵色品种,首先必须要育成持有经济价值高的白卵品种(田岛,1956;真野,1977)。我系保育的白卵系统根据其性状属于限性品种的基础材料之一。探索家蚕卵色文献,证实我系这个白卵系统,是过去没有记载的新白卵突变型。 第1白卵W_(-1)的白卵,是母性遗传白卵(外山,1910、1913;铃木,1938),在第10染色体12.7的位置(自南泽,1979)。第2白卵W_(-2)的白卵,产下当时为黄白色,随时
White oosomes are the only basic form of limited egg color varieties. To breed limited egg color varieties, first, white egg varieties with high economic value must be bred (Tajima, 1956; Mano, 1977). The white-egg system that I have under the care of is one of the basic materials that is a limited variety based on its traits. Exploring the silkworm egg documentation confirms that I am the white egg system and is a new white egg mutant that was not documented in the past. The white egg of the first white egg W_ (-1) is the maternal white egg (Outer Mountain, 1910, 1913; Suzuki, 1938) at the 12.7 position on chromosome 10 (since Nanze 1979). The second white egg W _ (- 2) white eggs, was born yellowish white at any time