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与拟暗果蝇和果蝇种内倒位相关的等位基因变异之间的差异。

Distinctions among allelic variants associated with chromosome 3 inversions in Drosophila pseudoobscura and Drosophila persimilis.

作者信息

Norman R A, Prakash S

出版信息

Genetics. 1980 Nov;96(3):727-41. doi: 10.1093/genetics/96.3.727.

Abstract

Efforts were made to discriminate new genetic variants among electrophoretic alleles that are associated with chromosome 3 inversions of Drosophila pseudoobscura and D. persimilis. Apparent genetic similarities for electrophoretic alleles between these two species and among the common inversions they carry were reexamined by altering gel concentration and buffer pH. At the amylase locus, the 1.09 electrophoretic allele could be further separated into two allelic classes that differentiated the WT and KL arrangements. Similarly, the 0.84 electrophoretic allele was divided into two allelic classes, one characteristic of the Santa Cruz phylad arrangements, TL and SC, and the other found in strains of the Standard phylad arrangements and CH. Uncommon amylase alleles proved to be different alleles in the two species. No new allelic variants, however, could be found among strains with the amylase 1.00 allele, the commonest allele in the Standard phylad of both species. No major new allelic variation was detected for acid phosphatase-3 and larval protein-10 that revealed any further differentiation among species or inversions. Variation at all three loci in strains of the Bogota population remained genetically similar to variation in strains of mainland D. pseudoobscura.

摘要

研究人员致力于区分与拟暗果蝇和佩氏果蝇3号染色体倒位相关的电泳等位基因中的新遗传变异。通过改变凝胶浓度和缓冲液pH值,重新审视了这两个物种之间以及它们所携带的常见倒位之间电泳等位基因明显的遗传相似性。在淀粉酶基因座上,1.09电泳等位基因可进一步分为两个等位基因类别,这两个类别区分了WT和KL排列。同样,0.84电泳等位基因被分为两个等位基因类别,一个是圣克鲁斯分支排列TL和SC的特征,另一个出现在标准分支排列和CH的菌株中。事实证明,不常见的淀粉酶等位基因在这两个物种中是不同的等位基因。然而,在具有淀粉酶1.00等位基因(这两个物种标准分支中最常见的等位基因)的菌株中未发现新的等位基因变体。对于酸性磷酸酶-3和幼虫蛋白-10,未检测到主要的新等位基因变异,这些变异揭示了物种或倒位之间的任何进一步分化。波哥大种群菌株中所有三个基因座的变异在遗传上仍与大陆拟暗果蝇菌株的变异相似。

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