1 / 10

Nuclear DNA amounts in Macaronesian Angiosperms

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. B a s i c d a t a. M a c a r o n e s i a n f l o r a. Total number of species: ca 2 500

bertille-marley
Download Presentation

Nuclear DNA amounts in Macaronesian Angiosperms

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

  6. very small small intermediate C - v a l u e s c o m p a r i s o n very small (< 1.4 pg) small (1.4 1- 3.5 pg) intermediate (3.51 - 14 pg) large (14.01 - 35 pg) very large (> 35.01 pg)

  7. 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%) C - v a l u e s c o m p a r i s o n Database Macaronesia Min 0.17 0.19 Max 127.4 9.52 Range 750 50 Mean 6.34 1.97 Median 2.9 1.02 Mode 0.55 0.51 n 3478 241

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

  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: 153-164. 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

More Related