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Titolo:
The Purple leaf (Pl) locus of rice: the Pl(w) allele has a complex organization and includes two genes encoding basic helix-loop-helix proteins involved in anthocyanin biosynthesis
Autore:
Sakamoto, W; Ohmori, T; Kageyama, K; Miyazaki, C; Saito, A; Murata, M; Noda, K; Maekawa, M;
Indirizzi:
Okayama Univ, Bioresources Res Inst, Kurashiki, Okayama 7100046, Japan Okayama Univ Kurashiki Okayama Japan 7100046 hiki, Okayama 7100046, Japan Kyusyu Expt Stn, Kumamoto 8611192, Japan Kyusyu Expt Stn Kumamoto Japan 8611192 Expt Stn, Kumamoto 8611192, Japan
Titolo Testata:
PLANT AND CELL PHYSIOLOGY
fascicolo: 9, volume: 42, anno: 2001,
pagine: 982 - 991
SICI:
0032-0781(200109)42:9<982:TPL(LO>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAIZE R-GENE; REGULATORY GENES; TRANSCRIPTIONAL ACTIVATORS; NUCLEOTIDE-SEQUENCE; B-GENE; EXPRESSION; HOMOLOGY; FAMILY; TRANSACTIVATION; PROMOTER;
Keywords:
anthocyanin biosynthetic pathway; basic-helix-loop-helix protein; Oryza sativa; Purple leaf;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Sakamoto, W Okayama Univ, Bioresources Res Inst, Kurashiki, Okayama 7100046, Japan Okayama Univ Kurashiki Okayama Japan 7100046 a 7100046, Japan
Citazione:
W. Sakamoto et al., "The Purple leaf (Pl) locus of rice: the Pl(w) allele has a complex organization and includes two genes encoding basic helix-loop-helix proteins involved in anthocyanin biosynthesis", PLANT CEL P, 42(9), 2001, pp. 982-991

Abstract

The Purple leaf (Pl) locus of rice (Oryza sativa L.) affects regulation ofanthocyanin biosynthesis in various plant tissues. The tissue-specific patterns of anthocyanin pigmentation, together with the syntenic relationship,indicate that the rice Pl locus may play a role in the anthocyanin pathwaysimilar to the maize R/B loci. We isolated two cDNAs showing significant identity to the basic helix-loop-helix (bHLH) proteins found in the maize R gene family. OSB1 appeared to be allelic to the previously isolated R homologue, Ra1, but showed a striking difference at the C-terminus because of a 2-bp deletion. Characterization of the corresponding genomic region revealed that the sequence identical to a 5 ' -portion of OSB2 existed similar to 10-kb downstream of the OSB1 coding region. OSB2 lacks a conserved C-terminal domain. Restriction fragment length polymorphism analyses using an F-2 population indicate that both genes co-segregate with the purple leaf phenotype. A transient complementation assay showed that the anthocyanin pathway is inducible by OSB1 or OSB2. These results suggest that the Pl(w) allele may be complex and composed of at least two genes encoding bHLH proteins.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/01/21 alle ore 02:13:32