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פותח על ידי קלירמאש פתרונות בע"מ -
The making of a compound inflorescence in tomato and related nightshades
Year:
2008
Source of publication :
PLoS Biology
Authors :
אבו-עביד, מוחמד
;
.
כהן, עודד
;
.
פארן, אילן
;
.
Volume :
6
Co-Authors:
Lippman, Z.B., Hebrew University of Jerusalem, Faculty of Agriculture, Institute of Plant Sciences, Rehovot, Israel, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
Cohen, O., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Alvarez, J.P., Department of Plant Sciences, Weizmann Institute of Science, Rehovot, Israel
Abu-Abied, M., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Pekker, I., Department of Plant Sciences, Weizmann Institute of Science, Rehovot, Israel
Paran, I., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Eshed, Y., Department of Plant Sciences, Weizmann Institute of Science, Rehovot, Israel
Zamir, D., Hebrew University of Jerusalem, Faculty of Agriculture, Institute of Plant Sciences, Rehovot, Israel
Facilitators :
From page:
2424
To page:
2435
(
Total pages:
12
)
Abstract:
Variation in the branching of plant inflorescences determines flower number and, consequently, reproductive success and crop yield. Nightshade (Solanaceae) species are models for a widespread, yet poorly understood, program of eudicot growth, where short side branches are initiated upon floral termination. This "sympodial" program produces the few-flowered tomato inflorescence, but the classical mutants compound inflorescence (s) and anantha (an) are highly branched, and s bears hundreds of flowers. Here we show that S and AN, which encode a homeobox transcription factor and an F-box protein, respectively, control inflorescence architecture by promoting successive stages in the progression of an inflorescence meristem to floral specification. S and AN are sequentially expressed during this gradual phase transition, and the loss of either gene delays flower formation, resulting in additional branching. Independently arisen alleles of s account for inflorescence variation among domesticated tomatoes, and an stimulates branching in pepper plants that normally have solitary flowers. Our results suggest that variation of Solanaceae inflorescences is modulated through temporal changes in the acquisition of floral fate, providing a flexible evolutionary mechanism to elaborate sympodial inflorescence shoots. © 2008 Lippman et al.
Note:
Related Files :
gene expression
Genetics
mutation
phenotype
Solanaceae
Solanum
עוד תגיות
תוכן קשור
More details
DOI :
10.1371/journal.pbio.0060288
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
23324
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:58
You may also be interested in
Scientific Publication
The making of a compound inflorescence in tomato and related nightshades
6
Lippman, Z.B., Hebrew University of Jerusalem, Faculty of Agriculture, Institute of Plant Sciences, Rehovot, Israel, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
Cohen, O., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Alvarez, J.P., Department of Plant Sciences, Weizmann Institute of Science, Rehovot, Israel
Abu-Abied, M., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Pekker, I., Department of Plant Sciences, Weizmann Institute of Science, Rehovot, Israel
Paran, I., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Eshed, Y., Department of Plant Sciences, Weizmann Institute of Science, Rehovot, Israel
Zamir, D., Hebrew University of Jerusalem, Faculty of Agriculture, Institute of Plant Sciences, Rehovot, Israel
The making of a compound inflorescence in tomato and related nightshades
Variation in the branching of plant inflorescences determines flower number and, consequently, reproductive success and crop yield. Nightshade (Solanaceae) species are models for a widespread, yet poorly understood, program of eudicot growth, where short side branches are initiated upon floral termination. This "sympodial" program produces the few-flowered tomato inflorescence, but the classical mutants compound inflorescence (s) and anantha (an) are highly branched, and s bears hundreds of flowers. Here we show that S and AN, which encode a homeobox transcription factor and an F-box protein, respectively, control inflorescence architecture by promoting successive stages in the progression of an inflorescence meristem to floral specification. S and AN are sequentially expressed during this gradual phase transition, and the loss of either gene delays flower formation, resulting in additional branching. Independently arisen alleles of s account for inflorescence variation among domesticated tomatoes, and an stimulates branching in pepper plants that normally have solitary flowers. Our results suggest that variation of Solanaceae inflorescences is modulated through temporal changes in the acquisition of floral fate, providing a flexible evolutionary mechanism to elaborate sympodial inflorescence shoots. © 2008 Lippman et al.
Scientific Publication
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