Adaptive mutation: who's really in the garden?
Adaptive mutation: who's really in the garden?
复制标题
适应性突变:谁真正在花园里?
DOI:
10.1126/science.7716540
复制
发表时间:
1995
期刊:
影响因子:
56.9
通讯作者:
James A. Shapiro
中科院分区:
文献类型:
--
作者:
James A. Shapiro
The blind watchmaker or the genetic engineer-which is the best model for evolutionary change? The adaptive mutation debate introduces a high tech element into evolutionary theory.[Photograph B. L1ewellyn/Uniphoto] lad-Z33 strains express low levels of B-galactosidase activity sufficient for slow bacterial growth on selection plates. Foster and Trimarchi confirm that adaptive lad-Z33 reversion depends on conjugation functions (13). Peters, Bartoszyk, and Benson provide new mechanistic insight by demonstrating an unexpected correlation between the effects of recA and recD mutations on adaptive lad-Z33 reversion and on the frequency of plasmid transfer under selective conditions (14).A major conclusion from all these results is that adaptive lad-Z33 reversion represents more than malfunction of the basic replication machinery under stress. Additional specific molecules participate in selection-induced mutations that restore growth on lactose (namely, homologous recombination and plasmid transfer functions). The participation of DNA-processing activities is
登录
查看更多内容
影响因子:
3.3
作者:
B. Hall
通讯作者:
B. Hall
影响因子:
3.3
作者:
D. F. Steele;S. Jinks-Robertson
通讯作者:
D. F. Steele;S. Jinks-Robertson
影响因子:
3.3
作者:
Hall,BG
通讯作者:
Hall,BG
影响因子:
56.9
作者:
FOSTER, PL;TRIMARCHI, JM
通讯作者:
TRIMARCHI, JM