INTER-FAMILIAL RELATIONSHIPS IN THE RANUNCULIDAE BASED ON MOLECULAR SYSTEMATICS

Authors
Citation
Sb. Hoot et Pr. Crane, INTER-FAMILIAL RELATIONSHIPS IN THE RANUNCULIDAE BASED ON MOLECULAR SYSTEMATICS, Plant systematics and evolution, 1995, pp. 119-131
Citations number
40
Categorie Soggetti
Plant Sciences
ISSN journal
03782697
Year of publication
1995
Supplement
9
Pages
119 - 131
Database
ISI
SICI code
0378-2697(1995):<119:IRITRB>2.0.ZU;2-W
Abstract
Nucleotide sequences from the rbcL and atpB genes (chloroplast DNA) an d 18S nuclear ribosomal DNA provide important new data with which to t est previous hypotheses of inter-familial relationships in the angiosp erm subclass Ranunculidae. Preliminary conclusions based on cladistic analysis of the combined molecular data sets for all three genes are b roadly congruent with previous analyses based on rbcL data alone. The genus Euptelea, which has been placed traditionally among the ''lower' ' Hamamelididae, is resolved as more closely related to ranunculids. P apaverales (represented by Pteridophyllaceae and Fumariaceae including Hypecoum) are strongly supported as a monophyletic group, and are res olved as basal to all other ranunculids (''core'' ranunculids) plus Eu ptelea. The monotypic genera Kingdonia and Circaeaster are placed as s ister taxa and together are sister to Lardizabalaceae s.l. (including Sargentodoxa). The Lardizabalaceae- Circaeaster-Kingdonia clade is the sister taxon to Menispermaceae-Ranunculaceae-Berberidaceae. Menisperm aceae is the sister taxon to Ranunculaceae and Berberidaceae.