Radiation-sensitive mutants of Arabidopsis thaliana
- Univ. of Arizona, Tucson, AZ (United States); and others
Five Arabidopsis mutants have been isolated on the basis of hypersensitivity of leaf tissue to UV light. For each mutant, the UV-hypersensitive phenotype (uvh) was inherited as a single recessive Mendelian trait. In addition, each uvh mutant represented a separate complementation group. Three of the mutations producing the UV hypersensitive phenotype have been mapped relative to either genetic markers or physical microsatellite polymorphisms. Locus UVH1 is linked to nga76 on chromosome 5, UVH3 to GL1 on chromosome three, and UVH6 to nga59 on chromosome 1. Each uvh mutant has a characteristic pattern of sensitivity based on UV sensitivity of leaf tissue, UV sensitivity of root tissue, and ionizing radiation sensitivity of seeds. On the basis of these patterns, possible molecular defects in these mutants are discussed. 30 refs., 3 figs., 5 tabs.
- OSTI ID:
- 110970
- Journal Information:
- Genetics, Journal Name: Genetics Journal Issue: 2 Vol. 140; ISSN GENTAE; ISSN 0016-6731
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BASIC STUDIES
56 BIOLOGY AND MEDICINE
APPLIED STUDIES
ARABIDOPSIS
BIOLOGICAL MARKERS
CHROMOSOMES
GENES
GENETIC MAPPING
GENETIC RADIATION EFFECTS
GENETICS
HEREDITARY DISEASES
LEAVES
MUTANTS
PHENOTYPE
RADIATION DOSES
RECESSIVE MUTATIONS
ROOTS
SEEDS
SENSITIVITY
ULTRAVIOLET RADIATION