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Now showing items 81-100 of 122
The ontogenetic and evolutionary origins of antibody diversity : (antibody diversity, ontogeny, evolution, transposable elements)
(University of Missouri, Agricultural Experiment Station, 1982)
Three ontogenetic origins of antibody diversity have been identified. First, there is a large number of germline gene segments. Second, multiple combinatorial strategies are used to amplify antibody diversity. These include ...
Somatic cell genetic analysis of the interferon system : (interferon genetics, interferon receptors , cell hybrids )
(University of Missouri, Agricultural Experiment Station, 1981)
The interferon system is amenable to somatic cell genetic analysis since the genes governing the synthesis of interferon and the cellular responses to interferon can be expressed in tissue culture cells. Limited species ...
Characteristics of cms-S reveversion to male fertility in maize : (cytoplasmic male sterility, male fertility restoration S-type cytoplasm, mitochondrial DNA)
(University of Missouri, Agricultural Experiment Station, 1981)
The association of cytoplasmic reversion of cms-S male-sterile strains to male fertility with disappearance of the S1 and S2 mtDNA plasmids as discrete molecules has been established for all 23 cytoplasmic revertant strains ...
Divergent and concerted evolution of the two regions encompassing the iso-1- cytochrome c and iso-2-cytochrome c genes of yeast : (saccharomyces cerevisiae, cytochrome c of yeast, evolution of yeast, cloning yeast genes, recombinant DNA, transpositions, composite genes)
(University of Missouri, Agricultural Experiment Station, 1982)
The yeast Saccharomyces cerevisiae contains a cluster of three genes CYC1-0SM1-RAD7, denoted COR, located on the right arm of chromosome X and a cluster of three genes ANP1-RAD23 -C YC7, denoted ARC, located on the left ...
The mechanism and control of Tn5 transposition
(University of Missouri, Agricultural Experiment Station, 1982)
Analyses of transposition from pBR322
Transposable elements and genetic instabilities in crop plants : (controlling elements, recurrent mutations, hybrid dysgenesis, somatic mutations, tissue culture)
(University of Missouri, Agricultural Experiment Station, 1981)
Transposable elements have long been associated with certain unstable loci in maize and have been intensively studied by McClintock and others. It is known that a transposable element can control the expression of the ...
Chromatin structure of eukaryotic genes : DNase I hypersensitive sites
(University of Missouri, Agricultural Experiment Station, 1982)
We have recently learned much about the organization of the eukaryotic genome by using nucleases as probes of the protein - DNA interactions of chromatin. In this paper we review the available information from our laboratory ...
Heterogeneity and expression of the zein storage protein gene family of maize : (zein, maize, multiple gene families, in vitro processing, protein synthesis, cloning, low molecular weight PAGE)
(University of Missouri, Agricultural Experiment Station, 1981)
The storage protein zein is synthesized by polysomes on the endoplasmic reticulum in certain cells of the maize seed. As zein accumulates within the membrane lumen the cisternae are transformed into vesiculate protein ...
The role of tRNA in development
(University of Missouri, Agricultural Experiment Station, 1972)
Experiments that suggest a developmental regulatory role for tRNA in translation (such cytokinins in tRNA, suppressor mutations, tRNA methyases, excessive number of isoaccepting species, and others) are briefly presented. ...
Evolution and genetic significance of mitochondria
(University of Missouri, Agricultural Experiment Station, 1972)
Mitochondria are constituted of two different membrane systems which may well have quite different origins in replication and evolution. It is hypothesized that the outer membrane is entirely derived from cytosol constituents ...
Genetics of psychoses
(University of Missouri, Agricultural Experiment Station, 1972)
The financial burden of the psychoses each year runs into the billions of dollars while the misery to everyone concerned is beyond calculation. It should be self-evident that the genetics of the psychoses is therefore a ...
Seven or twenty-seven against obscurity or still further observations on tittlebats
(University of Missouri, Agricultural Experiment Station, 1972)
Trends in genetics research--prospects for development
(University of Missouri, Agricultural Experiment Station, 1972)
Some aspects of current research are viewed in an attempt to anticipate major trends in the next few years. The observations indicate that geneticists in general are becoming more problem - than organism-oriented and are ...
The genetics of corn breeding
(University of Missouri, Agricultural Experiment Station, 1972)
Hybrid corn has now replaced open-pollinated varieties almost completely. This change-over has been accompanied by a nearly 3-fold increase in U.S. average yields. The genetic basis for corn breeding rests upon classical ...
Chromosome engineering in wheat
(University of Missouri, Agricultural Experiment Station, 1972)
Three methods have been developed for the transfer of genetic material to wheat chromosomes from alien chromosomes: (i) Use of ionizing radiation to translocate an alien segment. (ii) Induction of homoeologous pairing, ...
The biochemisrty of meiosis and genetic recombination
(University of Missouri, Agricultural Experiment Station, 1972)
Evidence is presented for three important DNA metabolic processes which may direct genetic recombination events during meiosis. These processes are: 1) DNA breakage and repair, 2) facilitated interaction between homologous ...
Evolution of the bacterial genome : (bacterial DNA evolution, vertical vs. horizontal evolution)
(University of Missouri, Agricultural Experiment Station, 1980)
Not all parts of bacterial genomes have evolved at the same rate. Among related genomes, some gene segments are highly conserved, some are less conserved and some are highly variable. We have studied the relatedness of ...
Ti plasmids of agrobacterium : potentials for genetic engineering : plasmids, genetic engineering, crown gall, tumors
(University of Missouri, Agricultural Experiment Station, 1979)
Crown gall disease of dicotylendenous plants, induced by Agrobacterium tumefaciens, provides a unique system for the study of pathogen-host interplay at the molecular level. By means of large Ti plasmids borne by virulent ...
Neurospora as an object for cytogenetic research : chromosome rearrangements, crossing over, duplications, meiosis, meiotic drive, recombination
(University of Missouri, Agricultural Experiment Station, 1979)
Several lines of research have been stimulated because the direct results of Mendelian segregation are apparent in Neurospora asci. Spore killer genes provide an example. When across is heterozygous for Spore killer, four ...
Role of gene duplication in the evolution of complex physiological mechanisms : an assessment based on protein sequence data : (gene duplication, protein sequences, evolutionary trees, serine proteases, immunoglobulins, evolution of muscle types)
(University of Missouri, Agricultural Experiment Station, 1979)
Genetic duplication has played a major role in the evolution of physiological complexity by creating originally redundant genes that evolved to produce related proteins in the organism. The related chains of certain polymeric ...