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International Rice Research Institute, P.O. Box 933, Manila, Philippines
A dominant gene Hg (hairy glume) was described by Nagao et a]. (1960)
which conditions presence of longer trichomes (hairs) on the surface of
glumes, leaf margins and auricles of rice plant. Professor M. H. Heu gave us
another mutant with similar morphology which he called Lh (long hair). The
F\1\ progenies from the cross of these two mutants had the mutant phenotype.
An F\2\ population of 158 plants consisted of mutant plants only. It is thus
obvious that Hg and Lh are allelic. The gene symbol Hg has priority and
should be retained for this locus.
Reference
Nagao, S., M. Takahashi and T. Kinoshita, 1960. Genetical studies on rice plant, XXV. Inheritance of three morphological characters, pubescence of leaves and floral glumes, and deformation of empty glumes. J. Fac. Agric. Hokkaido Univ. 51: 299-314.
