Читать книгу Snyder and Champness Molecular Genetics of Bacteria - Tina M. Henkin - Страница 161

References

Оглавление

Ganoza MC, Kiel MC, Aoki H. 2002. Evolutionary conservation of reactions in translation. Microbiol Mol Biol Rev 66:460–485.

Hug LA, Baker BJ, Anantharaman K, Brown CT, Probst AJ, Castelle CJ, Butterfield CN, Hernsdorf AW, Amano Y, Ise K, Suzuki Y, Dudek N, Relman DA, Finstad KM, Amundson R, Thomas BC, Banfield JF. 2016. A new view of the tree of life. Nat Microbiol 1:16048.

Iwabe N, Kuma K, Hasegawa M, Osawa S, Miyata T. 1989. Evolutionary relationship of archaebacteria, eubacteria, and eukaryotes inferred from phylogenetic trees of duplicated genes. Proc Natl Acad Sci USA 86:9355–9359.

Owen RJ. 2004. Bacterial taxonomics: finding the wood through the phylogenetic trees. Methods Mol Biol 266:353–383.

Pace NR. 2009. Mapping the tree of life: progress and prospects. Microbiol Mol Biol Rev 73:565–576.

Woese CR. 1987. Bacterial evolution. Microbiol Rev 51:221–271.


Figure 2.16 Precursor of rRNA. The precursor transcript (top) contains the 16S, 23S, and 5S rRNAs, as well as one or more tRNAs. RNases cut the individual rRNAs and tRNAs out of the precursor after it is synthesized.

The faster a cell grows, the more protein it needs to make. Ribosomes are the site of protein synthesis; therefore, cells can increase their growth rate only if they increase the number of ribosomes. In most bacteria, the coding sequences for the rRNAs are repeated in several copies in the genome. Duplication of these genes leads to higher rates of rRNA synthesis in these bacteria. Although the precursor RNAs encoded by these different copies produce identical rRNAs, the rRNA gene clusters often contain different tRNAs and spacer regions.

Snyder and Champness Molecular Genetics of Bacteria

Подняться наверх