Open AccessAnalysis of flavone‐flavonol ratio in Dicotyledoneae
Author(s) -
SOARES GERALDO L. G.,
KAPLAN MARIA A. C.
Publication year - 2001
Publication title -
botanical journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.872
H-Index - 68
eISSN - 1095-8339
pISSN - 0024-4074
DOI - 10.1111/j.1095-8339.2001.tb02369.x
Subject(s) - biology , taxon , range (aeronautics) , botany , flavones , linear relationship , evolutionary biology , statistics , mathematics , materials science , composite material
The flavone‐flavolol ratio (fo/fl) for Dicotyledoneae is studied through graphic comparisons between indices indicative of morphological tendencies: the herbaceousness and Sporne indices. These comparisons show a tendency toward the reduction of flavone biosynthesis in arboreous and shrubby taxa. Ligneous families (HI ≤150.0) and morphologically more primitive families (SI ≤55) possess fo/fl <1.OO. However, the relationship between evolutionary status of families with fo/fl values is not simply linear in Dicotyledoneae, because more advanced families are also characterized by a wider range of variation in fo/fl values.