Ontology highlight
ABSTRACT:
SUBMITTER: Savard L
PROVIDER: S-EPMC43952 | biostudies-other | 1994 May
REPOSITORIES: biostudies-other
Savard L L Li P P Strauss S H SH Chase M W MW Michaud M M Bousquet J J
Proceedings of the National Academy of Sciences of the United States of America 19940501 11
We have estimated the time for the last common ancestor of extant seed plants by using molecular clocks constructed from the sequences of the chloroplastic gene coding for the large subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase (rbcL) and the nuclear gene coding for the small subunit of rRNA (Rrn18). Phylogenetic analyses of nucleotide sequences indicated that the earliest divergence of extant seed plants is likely represented by a split between conifer-cycad and angiosperm lineages ...[more]