PARAMUTAGENIC ACTION OF MUTANTS FROM MAIZE PLANTS HETEROZYGOUS Rr Rst
نویسندگان
چکیده
منابع مشابه
Mutants from Maize Plants Heterozygous R R and Their Association with Crossing over.
HE R locus alleles in maize, together with certain complementary genes, Tcondition the production of anthocyanin pigment in the aleurone layer of the seed and in such plant parts as the roots, leaf sheaths, and anther walls. In the designation of the common alleles (EMERSON, BEADLE and FRASER 1935), R and r are used to indicate the presence and absence, respectively. of anthocyanin in the aleur...
متن کاملRelative insensitivity of enhanced Rr to paramutation in maize plants heterozygous for the stippled allele.
ATA presented in the preceding article (BRINK and BLACKWOOD 1961) D demonstrate that the effect of R' on aleurone color in maize is enhanced when the factor is carried by, or passed through, either of two reciprocal translocations, T2-10a and T4-lob, involving breaks in the long arm of chromosome 10 proximal to, but well removed from, the R locus. The change in phenotype is from darkly mottled ...
متن کاملParamutagenic Systems in Some South American Races of Corn.
RINK (1956) reported the occurrence of an unusual phenomenon at the R locus in maize. The “standard” Rr (colored aleurone, colored plant) allele was observed to have decreased pigment producing capacity after being heterozygous (R‘ RSt ) with a “pattern” allele, stippled (R“) . Additional observations by BRINK and WEYERS (1957) showed that marbled (Rmb), another “pattern” allele, also produced ...
متن کاملPersistent enhancement of Rr action in maize by structural alterations of chromosome 10.
HE anthocyanin-producing action of the R' allele in maize invariably is reduced by passing R' through a heterozygote with the stippled ( RrRSt) or the marbled allele ( RrRmb). The induced changes in R' are gametically transmissible in metastable form (BRINK 1956, 1960; BRINK and WEYERS 1957; BRINK and MIKULA 1958). It is now found that Rr activity can regularly be altered in directed fashion al...
متن کاملEndosperm Mutants of Maize
Sugar metabolism in kernels of starch-deficient endosperm mutants of maize (Zea mays L.) was examined to determine how single locus mutations of carbohydrate metabolism affect carbohydrate metabolism as a whole. Activities of 14 enyzmes were measured in extracts from endosperms from isogenic lines of normal, shrunken, shrunken-2, shrunken-4, brittle-1, and brittle-2 maize in an OH43 background....
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ژورنال
عنوان ژورنال: Genetics
سال: 1965
ISSN: 1943-2631
DOI: 10.1093/genetics/52.4.835