1. Nuclear DNA amounts in Macaronesian Angiosperms
Jan Suda
Department of Botany, Faculty of Science, Charles University
Institute of Botany, Academy of Sciences of the Czech Republic

2. B a s i c d a t a

3. M a c a r o n e s i a n f l o r a Total number of species: ca 2 500
Endemic species: ca 600
Endemic genera: ca 31
- high proportion of woody life-forms
- many taxa succulent
- low frequency of geophytes, annuals
- recent diversification (adaptive radiation, vicarization, inter-island differentiation)

4. F C M a s s a y s

5. 241 species (40 % of the endemic flora)
R e s u l t s
241 species (40 % of the endemic flora)

6. C - v a l u e s c o m p a r i s o n very small (< 1.4 pg)
intermediate ( pg)
large ( pg)
very large (> pg)
very small
small
intermediate

7. C - v a l u e s c o m p a r i s o n Endemic genera
Database Macaronesia
Min
Max
Range
Mean
Median
Mode n
Endemic genera
Total: 31
Analyzed: 23 (74 %)
Assumed: +4 (87%)
Very small C-values: 19 (83%)
Assumed: +2 (78%)
Small C-values: 1 (4%)
Assumed: +1 (7%)
Intermediate C-values: 3 (13%)
Assumed: +1 (15%)

8. Correlation with environmental conditions
Altitude Rainfall Temperature
Argyranthemum (n=7)
Silene (n=4) (-)
Micromeria (n=4) (-)
Crambe (n=4)
Sonchus (n=3)
13.69
14.41
14.14
14.28
14.18
13.94
13.77

9. W h e r e f i n d m o r e
Suda J., Kyncl T. & Freiová R. (2003): Nuclear DNA amounts in Macaronesian Angiosperms. – Annals of Botany 92/1:
Suda J. & Kyncl T. (xxxx): Nuclear DNA amounts in Macaronesian Angiosperms - forty percent of the endemic flora finished (in prep.)
Suda J. (xxxx): Macaronesian angiosperms: selection towards very small genomes (in prep.)
Future intentions:
Comparative study of plant C-value variation in Havaiian and Galapagos archipelagos