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THE MORPHOLOGY AND FLAVONOID CHEMISTRY OF SYNTHETIC INFRASPECIFIC HYBRIDS IN COREOPSIS MUTICA (COMPOSITAE).
Author(s) -
Crawford Daniel J.
Publication year - 1972
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1219218
Subject(s) - hybrid , introgression , backcrossing , flavonoid , botany , biology , genetics , antioxidant , gene , biochemistry
Summary The morphology and flavonoid chemistry of synthetic F 1 , first generation backcross, and F 2 hybrids involving two varieties of Coreopsis mutica DC. were studied. The F 1 hybrids are variable in certain morphological features, particularly with respect to characteristics of the leaves. By contrast, there is little variation in the flavonoid components of these plants. First generation backcross hybrids fall within the range of variation of the recurrent parent, but retain certain compounds which are characteristic of the non‐recurrent parent. The F 2 hybrid plants are quite variable in their flavonoid components. The results of these greenhouse studies are related to observations of suspected natural hybridization and introgression.