Phylogeny of the Madagascan endemic family Didiereaceae
Abstract
A molecular phylogeny of the Didiereaceae was produced through parsimony analysis of chloroplastrpl16 intron andtrnL-trnF andtrnT-trnL intergenic spacer sequences of all eleven species of the Didiereaceae and several outgroup taxa from the Portulacaceae. Results indicated that: 1) the Didiereaceae were embedded within the Portulacaceae, withCalyptrotheca as the sister group of the family; 2) present generic limits were supported; 3)Alluaudiopsis was the most basal lineage; 4) at least two separate episodes of polyploidization within the genusAlluaudia had occurred, and 5) unusually low amounts of variation were present in rapidly evolving noncoding plastid sequences.
- Publication:
-
Plant Systematics and Evolution
- Pub Date:
- September 2000
- DOI:
- Bibcode:
- 2000PSyEv.221..157A
- Keywords:
-
- Calyptrotheca;
- Didiereaceae;
- Portulacaceae;
- Chloroplast DNA;
- phylogeny;
- rpl16;
- systematics;
- trnL-trnF;
- trnT-trnL