G-string slippage turns white rice red

Authors: Lee, David; Lupotto, Elisabetta; Powell, Wayne

Source: Genome, Volume 52, Number 5, May 2009 , pp. 490-493(4)

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Abstract:

The mutations that convey the white pericarp phenotype to rice (Oryza sativa subsp. japonica) are in a regulatory gene, Rc. We have identified a genetic difference between the cultivar `Perla' and its natural red rice mutant `Perla Rosso' in the Rc gene. The deletion of a G base restores the reading frame for the Rc gene, lost by the original 14 bp deletion that gave rise to white rice.

Les mutations qui produisent un péricarpe blanc chez le riz sont situées dans le gène régulateur Rc. Les auteurs ont identifié une différence génétique entre le cultivar `Perla' et le riz mutant naturel rouge `Perla Rosso' au sein du gène Rc. La délétion d'une base G rétablit le cadre de lecture du gène Rc, lequel avait été perturbé en raison de la délétion originale de 14 pb qui a produit le riz blanc.

Document Type: Research article

Publication date: 2009-05-01

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From its inception in 1957, this international cytogenetics journal has catered to the research areas of the members of the Genetics Society of Canada; traditionally, these have included agriculture, entomology, genetics/cytogenetics, and evolutionary mechanisms. The contents of the journal have evolved as contributors developed new technologies and interests. A 20-member Editorial Board is composed of scientists from around the world. Reviews and commentary from respected experts are often featured.
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