The Frequency of Somatic Mutation in Variegated Pericarp of Maize.
نویسنده
چکیده
منابع مشابه
A Stable Somatic Mutation to Colorless from Variegated Pericarp in Maize.
OLORLESS pericarp and cob is one of the least frequent mutant phenotypes C among the offspring of maize plants carrying the somatically unstable variegated pericarp allele, PV. BRAWN (1956) , for example, found only eight mutations to colorless pericarp and cob in contrast to 125 to red pericarp and cob(P") among 4575 offspring from the mating homozygous variegated times standard colorless (P""...
متن کاملMovement of modulator in maize: a test of an hypothesis.
A model of Modulator movement (Greenblatt 1968) from one chromosomal site to another requires that all movements produce potential twin mutations within the affected cell lineage. From this model the prediction would be that (1) untwinned red and untwinned light-variegated sectors within the pericarp of medium-variegated maize must occur in equal frequency even though partners become lost, duri...
متن کاملFrequency of reconstitution of the variegated pericarp allele in maize.
SELF-RED pericarp (P) in maize arises as a mutant from variegated pericarp (PrrMp) by the transposition of Modulator ( M p ) away from the P locus, where it represses Prr action, to another chromosome site. Evidence summarized in the preceding article (ORTON and BRINK 1966) showed that occasionally the variegated allele is reconstituted in a Prr plant hemizygous for such a transposed Modulator ...
متن کاملThe mechanism of modulator transposition in maize.
CCLINTOCK (1956) suggested that a transposable element in maize moves Mfrom the donor site to a different recipient site on the chromosome during the mitotic reduplication process. GREENBLATT and BRINK (1962, 1963) and GREENBLATT (1966) were able to offer experimental support for this idea, and further, developed a working hypothesis of a mechanism of the element's movement. Since the evidence ...
متن کاملAc insertion site affects the frequency of transposon-induced homologous recombination at the maize p1 locus.
The maize p1 gene regulates the production of a red pigment in the kernel pericarp, cob, and other maize floral tissues. Insertions of the transposable element Ac can induce recombination between two highly homologous 5.2-kb direct repeat sequences that flank the p1 gene-coding region. Here, we tested the effects of the Ac insertion site and orientation on the induction of recombination at the ...
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ورودعنوان ژورنال:
- Genetics
دوره 14 5 شماره
صفحات -
تاریخ انتشار 2017