黑腹果蝇高度近交长期选择品系中遗传变异性的来源。
The sources of genetic variability in highly inbred long-term selected strains of Drosophila melanogaster.
作者信息
Kaidanov L Z, Bolshakov V N, Tzygvintzev P N, Gvozdev V A
机构信息
Department of Genetics and Breeding, Leningrad State University, USSR.
出版信息
Genetica. 1991;85(1):73-8. doi: 10.1007/BF00056108.
A highly inbred, long-term selected for low fitness strain LA of Drosophila melanogaster possesses a significant mutational load and unusually high rates of spontaneous mutability as revealed by CyL/Pm method. Our results indicate that during cross of CyL/Pm to LA strains, destabilization of copia-like and mobile elements and induction of H-E hybrid dysgenesis take place. The role of these processes in causing considerable genetic variability of LA strain is discussed.
一种高度近交、因低适应性而长期选育的黑腹果蝇品系LA，具有显著的突变负荷以及如CyL/Pm方法所揭示的异常高的自发突变率。我们的结果表明，在CyL/Pm与LA品系杂交过程中，类copia元件和可移动元件会发生不稳定，并且会诱导H-E杂种不育。本文讨论了这些过程在导致LA品系产生相当大的遗传变异性中所起的作用。
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