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Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

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Miki Lee / OEB 192 – 08.11. Mobile genetic elements and adaptive mutation
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Page 1: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

Miki Lee / OEB 192 – 08.11.12

Mobile genetic elements and adaptive mutation

Page 2: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

IS familyhttp://www-is.biotoul.fr/

Page 3: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

Effects on bacterial evolution

• An important source of genetic variation– Insertion

– Homologous recombination

Page 4: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.
Page 5: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

Effects on bacterial evolution

Page 6: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.
Page 7: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

— M-evolved— S-evolved— M+S-evolved— M/S-evolved

Page 8: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.
Page 9: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

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Page 10: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

MutationLuria–Delbrück experiment Cairns–Foster system

Page 11: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

Modified Cairns–Foster system

Page 12: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.
Page 13: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

Kugelberg E. et.al. PNAS 2006;103:17319-17324

Page 14: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.
Page 15: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

Monday (11/17): Physiological basis of fitness

Page 16: Miki Lee / OEB 192 – 08.11.12 Mobile genetic elements and adaptive mutation.

Upcoming talks

Tuesday, 12/16Rich LenskiMichigan State University12:30 pm, 341 Warren Alpert (HMS)


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