1. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 1

2. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 2

3. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 3

4. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 4 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

5. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 5 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

6. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 6 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

7. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 7 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

8. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 8 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

9. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 9 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

10. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 10 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

11. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 11 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

12. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 12 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

13. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 13 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

14. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 14 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

15. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 15 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

16. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 16 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

17. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 17 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

18. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 18 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.

19. Supplemental Web Fig. 1 Wild type, grown on 100 mm plate SLAS27 medium, day 19 Arrow designates the same filament over the sequence of days, so that its change of shape can be followed, as it is covered with lateral yeast.