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Epistatic repression of PHANTASTICA and class 1 KNOTTED genes is uncoupled in tomato
Year:
2000
Source of publication :
Plant Journal
Authors :
Koltai, Hinanit
;
.
Volume :
22
Co-Authors:
Koltai, H., Plant Nematode Genetics Group, Department of Plant Pathology, North Carolina State University, Raleigh, NC 27695, United States
Bird, D.M., Plant Nematode Genetics Group, Department of Plant Pathology, North Carolina State University, Raleigh, NC 27695, United States
Facilitators :
From page:
455
To page:
459
(
Total pages:
5
)
Abstract:
Class 1 KNOTTED genes (KNOX) and PHANTASTICA (PHAN) are both central to meristem establishment and maintenance and, in maize and Antirrhinum, it has been proposed that PHAN acts as an epigenetic repressor of KNOX. In tomato, a distinct spatial distribution of Tkn2 KNOX transcripts compared to Antirrhinum and maize suggests either a different spatial distribution of tomato PHAN (Le-phan) transcripts, or that PHAN alone is insufficient for KNOX repression in tomato. We established the pattern of Le-phan expression, including a first demonstration of PHAN expression in healthy roots, and found Le-phan and Tkn2 transcripts to be temporally and spatially coincidental, with PHAN exhibiting an expression pattern in tomato distinct from that in plants with simple leaves. Our results imply that the expression of Le-phan is insufficient for the repression of Tkn2 in tomato and suggest an expanded role for either gene in the establishment of cell identity in plant development.
Note:
Related Files :
Antirrhinum
Base Sequence
KNOTTED gene
Molecular Sequence Data
plant development
Proto-Oncogene Proteins c-myb
Zea mays
Show More
Related Content
More details
DOI :
10.1046/j.1365-313X.2000.00754.x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
19167
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:26
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Scientific Publication
Epistatic repression of PHANTASTICA and class 1 KNOTTED genes is uncoupled in tomato
22
Koltai, H., Plant Nematode Genetics Group, Department of Plant Pathology, North Carolina State University, Raleigh, NC 27695, United States
Bird, D.M., Plant Nematode Genetics Group, Department of Plant Pathology, North Carolina State University, Raleigh, NC 27695, United States
Epistatic repression of PHANTASTICA and class 1 KNOTTED genes is uncoupled in tomato
Class 1 KNOTTED genes (KNOX) and PHANTASTICA (PHAN) are both central to meristem establishment and maintenance and, in maize and Antirrhinum, it has been proposed that PHAN acts as an epigenetic repressor of KNOX. In tomato, a distinct spatial distribution of Tkn2 KNOX transcripts compared to Antirrhinum and maize suggests either a different spatial distribution of tomato PHAN (Le-phan) transcripts, or that PHAN alone is insufficient for KNOX repression in tomato. We established the pattern of Le-phan expression, including a first demonstration of PHAN expression in healthy roots, and found Le-phan and Tkn2 transcripts to be temporally and spatially coincidental, with PHAN exhibiting an expression pattern in tomato distinct from that in plants with simple leaves. Our results imply that the expression of Le-phan is insufficient for the repression of Tkn2 in tomato and suggest an expanded role for either gene in the establishment of cell identity in plant development.
Scientific Publication
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