A mutable luteus locus in maize
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منابع مشابه
The origin of an unstable locus in maize.
I N maize many unst(ab1e gene loci can, upon analysis, be ascribed to specific mutable systems. Often these systems consist of two units: a controlling element, such as Ds or Z, which responds to a regulatory element, Ac or En, respectively (PETERSON 1965). In addition, in cultures known to contain elements of a mutable system, such1 as Ac-Ds (MCCLINTOCK 1950, 1951) or En-Z (PETERSON 1960, 1961...
متن کاملThe genetics of a mutable gene at the white locus of Drosophila melanogaster.
LMOST coincidental with the rediscovery of Mendelism, genes of high sponA taneous mutation rate, often referred to as unstable, labile or mutable genes, were found. Such mutable genes, although not described as such, were identified in association with variegated phenotypes especially noticeable in plants as flower color variegation. R. A. EMERSON (1914, 191 7) from his studies of variegated pe...
متن کاملMUTABLE LOCI IN MAIZE t,
Previous reports have stated that a number of unstable loci have recently arisen in the maize cultures. In a particular cell of a plant, a normal “wild-type” locus becomes altered; the normal, dominant expression of this locus changes and gives rise to a recessive expression (or, in several cases, a recessive locus becomes unstable and mutates toward a dominant expression). This expression of t...
متن کاملChromosome Organization and Genic Expression
E in maize has been undertaken. This study has provided a unique opportunity to examine the muI t tation process at a number of different loci in the chromosomes. For some of these loci, several independent inceptions of instability have 1 occurred during the progress of this study. The types of mutation that appear, and the types of instability expression, need not be the same at any one locus...
متن کاملThe effect of abnormal chromosome 10 on transposition of modulator from the R locus in maize.
Transposition of the non-specific repressor element, Modulator, from the R locus on chromosome 10 in maize, is enhanced by coupling with the K10 segment at a distance of at least 35 map units from R. There is no detectable interaction in the repulsion phase. The K10 effect appears to be relatively greater in the earlier somatic cell generations during ear development. The transposition rate als...
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تاریخ انتشار 2017