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Titolo:
The developmental expression of the maize regulatory gene Hopi determines germination-dependent anthocyanin accumulation
Autore:
Petroni, K; Cominelli, E; Consonni, G; Gusmaroli, G; Gavazzi, G; Tonelli, C;
Indirizzi:
Univ Milan, Dipartimento Genet & Biol Microrganismi, I-20133 Milan, Italy Univ Milan Milan Italy I-20133 Biol Microrganismi, I-20133 Milan, Italy Univ Milan, Dipartimento Fisiol Piante Coltivate & Chim Agr, I-20133 Milan, Italy Univ Milan Milan Italy I-20133 oltivate & Chim Agr, I-20133 Milan, Italy
Titolo Testata:
GENETICS
fascicolo: 1, volume: 155, anno: 2000,
pagine: 323 - 336
SICI:
0016-6731(200005)155:1<323:TDEOTM>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
R-R COMPLEX; ZEA-MAYS; NUCLEOTIDE-SEQUENCE; MOLECULAR ANALYSIS; TRANSCRIPTIONAL ACTIVATORS; VIVIPAROUS-1 GENE; SEED DEVELOPMENT; B-PERU; C1; PROMOTER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
69
Recensione:
Indirizzi per estratti:
Indirizzo: Tonelli, C Univ Milan, Dipartimento Genet & Biol Microrganismi, Via Celoria 26, I-20133 Milan, Italy Univ Milan Via Celoria 26 Milan Italy I-20133 133 Milan, Italy
Citazione:
K. Petroni et al., "The developmental expression of the maize regulatory gene Hopi determines germination-dependent anthocyanin accumulation", GENETICS, 155(1), 2000, pp. 323-336

Abstract

The Hopi gene is a member of the maize r1 gene family. By genetic and molecular analyses eve report that Hopi consists of a single gene residing on chromosome 10 similar to 4.5 cM distal to r1. Hopi conditions anthocyanin deposition in aleurone, scutellum, pericarp, root, mesocotyl, leaves, and anthers, thus representing one of the broadest specifications of pigmentation pattern reported to dare of all the r1 genes. A unique feature of the Hopi gene is that seeds are completely devoid of pigment at maturity but show a photoinducible germination-dependent anthocyanin accumulation in aleurone and scutellum. Our analysis has shown that the Hopi transcript is not present in scutellum of developing seeds but is induced only upon germination andthat the simultaneous presence of both C1 and Hopi mRNAs is necessary to achieve A1 activation in scutella. We conclude that the expression pattern of the Hopi gene accounts for the germination-dependent anthocyanin synthesis in scutella, whereas the developmental competence of germinating seeds toinduce anthocyanin production in scutella results from the combination of the light-inducible expression of C1 and the developmentally regulated expression of the Hopi gene.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 17/01/21 alle ore 18:25:44