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黑腹果蝇的性连锁营养缺陷型和假定营养缺陷型突变体。

Sex-linked auxotrophic and putative auxotrophic mutants of Drosophila melanogaster.

作者信息

Falk D R, Nash D

出版信息

Genetics. 1974 Apr;76(4):755-66. doi: 10.1093/genetics/76.4.755.

Abstract

Thirty-two mutants with improved growth response on a yeast-sucrose compared with a defined medium have been characterized with respect to ribonucleoside supplementability. Twenty mutants respond to either pyrimidine ribonucleoside. Four mutants respond to one or both purine ribonucleosides. Eight mutants ("putative" auxotrophs) do not respond to dietary RNA supplementation. Mapping and complementation studies suggest that eleven loci are represented: one, rudimentary, probably accounts for all pyrimidine requirers; there are three purine loci and seven at which the putative auxotrophs are found.

摘要

与限定培养基相比,在酵母蔗糖培养基上生长反应有所改善的32个突变体已就核糖核苷可补充性进行了表征。20个突变体对嘧啶核糖核苷有反应。4个突变体对一种或两种嘌呤核糖核苷有反应。8个突变体(“假定”营养缺陷型)对日粮RNA补充无反应。定位和互补研究表明涉及11个基因座:一个基因座,即残基基因,可能解释了所有嘧啶需求者;有3个嘌呤基因座和7个发现假定营养缺陷型的基因座。

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