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RAY FLORET MORPHOLOGY AND THE ORIGIN OF VARIABILITY IN SENECIO CAMBRENSIS ROSSER, A RECENTLY ESTABLISHED ALLOPOLYPLOID SPECIES
Author(s) -
INGRAM RUTH,
NOLTIE H. J.
Publication year - 1984
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.1469-8137.1984.tb03595.x
Subject(s) - senecio , pairing , biology , chromosome pairing , homologous chromosome , genetics , evolutionary biology , botany , gene , physics , superconductivity , quantum mechanics
S ummary The genetic basis of polymorphism in the capitula of Senecio cambrensis has been shown to be the result of interaction between genes at two loci for ray floret length. This polymorphism is likely to be augmented by infrequent inter‐genomic pairing, despite the predominance of preferential homologous pairing. It is suggested that homoeologous pairing may be an important source of variability in the species.