| 家蚕新突变型第二h斑油的遗传分析 |
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| 引用本文： | 代方银,鲁成,宗俊英,夏庆友,向仲怀.家蚕新突变型第二h斑油的遗传分析[J].蚕学通讯,2001,21(4):1-3. |
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| 作者姓名： | 代方银 鲁成 宗俊英 夏庆友 向仲怀 |
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| 作者单位： | 西南农业大学蚕桑丝绸学院,农业部蚕桑学重点实验室,重庆,400716 |
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| 基金项目： | 国家自然科学基金项目 (39970 5 70 )资助 |
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| 摘 要： | 家蚕自然突变第二h班油 (mottledtranslucenth2 )的形态特征为 :幼虫皮肤中低度透明 ,遍布不透明的白色小斑点。遗传分析结果 :①第二h斑油蚕为隐性基因突变 ;②与橙色卵 (ci)连锁遗传 ,第二h斑油基因属于第 2 0连锁群 ,基因座位 (2 0 - 0 .0 ) ,命定其基因符号为ohm2 ;③确定此座位上 4个等位基因的显隐关系为 :+ >ohm>ohm2 >oh。
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| 关 键 词： | 家蚕 突变基因 斑油蚕 遗传分析 第二九斑油蚕 隐性基因突变 等位基因 |
GENETIC ANALYSIS OF SECOND MOTTLED TRANSLUCENT h2(ohm2)--A NEW MUTANT IN SILKWORM (BOMBYX MORI L.) |
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| Dai Fangyin,Lu Cheng,Zong Junying,Xia Qingyou,Xiang Zhonghuai.GENETIC ANALYSIS OF SECOND MOTTLED TRANSLUCENT h2(ohm2)--A NEW MUTANT IN SILKWORM (BOMBYX MORI L.)[J].Newsletter of Sericultural Science,2001,21(4):1-3. |
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| Authors: | Dai Fangyin Lu Cheng Zong Junying Xia Qingyou Xiang Zhonghuai |
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| Abstract: | Second mottled translucent h2 - a newly discovered spontaneous mutant in silkworm (Bombyx mori L.) is morphologically characterized by dimly translucent skin of the larvae mottled by opaque white spots. Genetic analysis showed it to be a recessive mutation and linked with ci (orange egg). The gene responsible for this character is found to be located at 20-0.0 in the 20 th linkage group and is now designated as oh m2 . The dominant-recessive relationship of the 4 alleles at the locus is +> oh m > oh m2 >oh. |
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| Keywords: | silkworm mutant gene mottle translucent silkworm genetic analysis |
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