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Phenotypic Effects of Nine Height Mutants in Sorghum vulgare 1
Author(s) -
Freeman J. E.,
Hadley H. H.,
Seif R. D.
Publication year - 1962
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1962.0011183x000200010007x
Subject(s) - citation , library science , sorghum , biology , genetics , art history , agronomy , computer science , history
T HE inheritance of height in sorghum is not yet completely understood, but present knowledge indicates that at least four major genes are involved. These genes have been designated as dwl, dw2, dw3, and dw4 (5). One of the genes is unstable in the recessive state and reverts to the dominant allele at a very high rate. The unstable gene has not been definitely identified, but has been postulated to be dw 3. The mere fact that the gent reverts from the recessive to the dominant condition does not necessarily imply that all mutations produce identical alleles. That is to say, it does not preclude the possibility of mutation to varying levels or grades of the same effect and the consequent establishment of a multiple allelic series. The comparison of several mutants from a homogeneous source should indicate, at least, whether .the unstable gene ordinarily reverts to a common allele. This approach was utilized in the present study, which was designed to compare the phenotypic effects of some height mutations within each of three different sources of material.