Twin mutations in medium variegated pericarp maize

By:

Greenblatt, I.M

Contributor(s):

Brink, R.A

Material type: Article

ArticleLanguage: English Publication details: 1962 United Kingdom : Oxford University Press,ISSN:

0016-6731
1943-2631 (Online)

Subject(s):

In: Genetics v. 47, no. 4, p. 489-501Summary: The variegated allele (P') , conditioning irregular red striping in the pericarp Tand cob of maize frequently mutates in somatic cells to stable self-red (P"), and to unstable light variegated (BRINK and NILAN 1952; BRINK 1954; BRAWN 1956). A hypothesis, based on the work of MCCLINTOCK (1950, 1951) and BRINK and associates (1952, 1954), which attempts to explain the high mutability. depicts the P" allele as a compound structure composed of the Prr gene for red pericarp and cob conjoined with a transposable element, Modulator (Mp), which acts as an inhibitor of pigmentation when at the P locus. EMERSON'S P" symbol (EMERSON, BEADLE, and FRASER 1935) for variegated pericarp may beequated, therefore. to PrrMp. Transposition of Mp from the P locus results in full expression of the pigment-producing action of the Prl allele. Loss of Mp from the P locus usually is coincident with acquisition of the element at some other site, often on the same chromosome (VAN SCHAIK and BRINK 1959). Modulator at a new site, i.e.. transposed Modulator (tr-Mp), plus the variegated allele at the P locus. result in the light variegated pericarp phenotype.

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Item type	Current library	Collection	Call number	Copy number	Status	Date due	Barcode	Item holds
Article	CIMMYT Knowledge Center: John Woolston Library	Reprints Collection	REP-1125 (Browse shelf(Opens below))	1	Available		616767

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Illustrations, tables, graphs, literature cited p. 500-501

Open Access

Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=1943-2631

The variegated allele (P') , conditioning irregular red striping in the pericarp Tand cob of maize frequently mutates in somatic cells to stable self-red (P"), and to unstable light variegated (BRINK and NILAN 1952; BRINK 1954; BRAWN 1956). A hypothesis, based on the work of MCCLINTOCK (1950, 1951) and BRINK and associates (1952, 1954), which attempts to explain the high mutability. depicts the P" allele as a compound structure composed of the Prr gene for red pericarp and cob conjoined with a transposable element, Modulator (Mp), which acts as an inhibitor of pigmentation when at the P locus. EMERSON'S P" symbol (EMERSON, BEADLE, and FRASER 1935) for variegated pericarp may beequated, therefore. to PrrMp. Transposition of Mp from the P locus results in full expression of the pigment-producing action of the Prl allele. Loss of Mp from the P locus usually is coincident with acquisition of the element at some other site, often on the same chromosome (VAN SCHAIK and BRINK 1959). Modulator at a new site, i.e.. transposed Modulator (tr-Mp), plus the variegated allele at the P locus. result in the light variegated pericarp phenotype.

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Knowledge Center Catalog

Twin mutations in medium variegated pericarp maize

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International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021.
Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at
CIMMYT-Knowledge-Center@cgiar.org

Knowledge Center Catalog

Twin mutations in medium variegated pericarp maize

Browsing CIMMYT Knowledge Center: John Woolston Library shelves, Collection: Reprints Collection Close shelf browser (Hides shelf browser)

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237. If you have any question, please contact us at CIMMYT-Knowledge-Center@cgiar.org

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021.
Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at
CIMMYT-Knowledge-Center@cgiar.org