ISSN:
1573-5060
Keywords:
Hordeum vulgare
;
barley
;
alleles
;
centimorgan
;
centromere
;
chromosome
;
DDT
;
embryo
;
endosperm
;
highlysine
;
linkage
;
loci
;
lysine
;
mutant
;
protein
;
recombination
;
shrunken seeds
;
turbidity test
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary The high-lysine gene in Risø mutant 1508 conditions an increased lysine content in the endosperm via a changed protein composition, a decreased seed size, and several other characters of the seed. The designation lys3a, lys3b, and lys3c, is proposed for the allelic high-lysine genes in three Risø mutants, nos 1508, 18, and 19. Linkage studies with translocations locate the lys3 locus in the centromere region of chromosome 7. A linkage study involving the loci lys3 and ddt (resistance to DDT) together with the marker loci fs (fragile stem), s (short rachilla hairs), and r (smooth awn) show that the order of the five loci on chromosome 7 from the long to the short chromosome arm is r, s, fs, lys3, ddt. The distance from locus r to locus ddt is about 100 centimorgans.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00029172
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