A GENETIC SYSTEM MODIFYING SEGREGATION-DISTORTION IN A NATURAL POPULATION OF DROSOPHILA MELANOGASTER IN JAPAN
A GENETIC SYSTEM MODIFYING SEGREGATION-DISTORTION IN A NATURAL POPULATION OF DROSOPHILA MELANOGASTER IN JAPAN
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改变日本果蝇自然种群分离扭曲的遗传系统
DOI：
10.1266/jjg.42.327
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发表时间：
1967
期刊：
影响因子：
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通讯作者：
Y. Kataoka
中科院分区：
文献类型：
--
作者：
Y. Kataoka
分析了日本大田县黑腹潜蝇自然种群中SD作用的抑制系统。大多数抑制子位于X染色体上。在同一群体中发现了两种第二染色体，一种是携带SD作用不敏感元件的染色体，另一种是抑制SD作用的第二染色体。对于不同来源的SD，抑制因子的作用是不同的。该抑制子位于X染色体的v和f基因座之间。发现抑制子-X染色体表现出轻微但一致的减数分裂驱动，并结合这一效应，讨论了调节群体性比的遗传机制。
A system of suppressor for the SD action in a natural population of D. melanogaster in Odate, Japan was analyzed. Most of the suppressors were located on the X chromosome. Two kinds of second chromosomes were found in the same population, one of which was a chromosome carrying insensitive element to the SD action and the other which inhibits the effect of suppressor. The effect of the suppressor was different for the SD which originated from different populations. The suppressor was located somewhere between the v and f loci on the X chromosome. The suppressor-X chromosomes were found to show slight but consistent meiotic drive, and in relation to this effect, a genetic mechanism regulating sex ratio in the population was discussed.