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THE TIME OF ORIGIN OF THE FLOWERING PLANTS DETERMINED BY USING AMINO ACID SEQUENCE DATA OF CYTOCHROME C
Author(s) -
RAMSHAW J. A. M.,
RICHARDSON D. L.,
MEATYARD B. T.,
BROWN R. H.,
RICHARDSON M.,
THOMPSON E. W.,
BOULTER D.
Publication year - 1972
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1972.tb01956.x
Subject(s) - cretaceous , biology , kingdom , sequence (biology) , botany , period (music) , paleontology , genetics , philosophy , aesthetics
S ummary Cytochrome c sequences from nineteen plants have been used, in conjunction with those of animal and fungal origin already published, to calculate the times of origin of the animal, fungal and plant kingdoms and also of some higher plant groups. The results show that the Angio‐sperms originated at least several geological periods before the Cretaceous, which is the earliest period in the geological record in which authentic angiosperm fossils have been found.