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Meristem maintenance and compound-leaf patterning utilize common genetic mechanisms in tomato
Year:
2007
Source of publication :
Planta
Authors :
ברנד, ארנון
;
.
Volume :
226
Co-Authors:
Brand, A., Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Otto Warburg Minerva Center for Agricultural Biotechnology, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Shirding, N., Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Otto Warburg Minerva Center for Agricultural Biotechnology, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Shleizer, S., Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Otto Warburg Minerva Center for Agricultural Biotechnology, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Ori, N., Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Otto Warburg Minerva Center for Agricultural Biotechnology, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Facilitators :
From page:
941
To page:
951
(
Total pages:
11
)
Abstract:
Balancing shoot apical meristem (SAM) maintenance and organ formation from its flanks is essential for proper plant growth and development and for the flexibility of organ production in response to internal and external cues. Leaves are formed at the SAM flanks and display a wide variability in size and form. Tomato (Solanum lycopersicum) leaves are compound with lobed margins. We exploited 18 recessive tomato mutants, representing four distinct phenotypic classes and six complementation groups, to track the genetic mechanisms involved in meristem function and compound-leaf patterning in tomato. In goblet (gob) mutants, the SAM terminates following cotyledon production, but occasionally partially recovers and produces simple leaves. expelled shoot (exp) meristems terminate after the production of several leaves, and these leaves show a reduced level of compoundness. short pedicel (spd) mutants are bushy, with impaired meristem structure, compact inflorescences, short pedicels and less compound leaves. In multi drop (mud) mutants, the leaves are more compound and the SAM tends to divide into two active meristems after the production of a few leaves. The range of leaf-compoundness phenotypes observed in these mutants suggests that compound-leaf patterning involves an array of genetic factors, which act successively to elaborate leaf shape. Furthermore, the results indicate that similar mechanisms underlie SAM activity and compound-leaf patterning in tomato. © 2007 Springer-Verlag.
Note:
Related Files :
gene expression
Genetics
Growth, Development and Aging
mutation
phenotype
Solanum
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s00425-007-0540-0
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26260
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:21
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Scientific Publication
Meristem maintenance and compound-leaf patterning utilize common genetic mechanisms in tomato
226
Brand, A., Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Otto Warburg Minerva Center for Agricultural Biotechnology, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Shirding, N., Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Otto Warburg Minerva Center for Agricultural Biotechnology, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Shleizer, S., Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Otto Warburg Minerva Center for Agricultural Biotechnology, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Ori, N., Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Otto Warburg Minerva Center for Agricultural Biotechnology, Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
Meristem maintenance and compound-leaf patterning utilize common genetic mechanisms in tomato
Balancing shoot apical meristem (SAM) maintenance and organ formation from its flanks is essential for proper plant growth and development and for the flexibility of organ production in response to internal and external cues. Leaves are formed at the SAM flanks and display a wide variability in size and form. Tomato (Solanum lycopersicum) leaves are compound with lobed margins. We exploited 18 recessive tomato mutants, representing four distinct phenotypic classes and six complementation groups, to track the genetic mechanisms involved in meristem function and compound-leaf patterning in tomato. In goblet (gob) mutants, the SAM terminates following cotyledon production, but occasionally partially recovers and produces simple leaves. expelled shoot (exp) meristems terminate after the production of several leaves, and these leaves show a reduced level of compoundness. short pedicel (spd) mutants are bushy, with impaired meristem structure, compact inflorescences, short pedicels and less compound leaves. In multi drop (mud) mutants, the leaves are more compound and the SAM tends to divide into two active meristems after the production of a few leaves. The range of leaf-compoundness phenotypes observed in these mutants suggests that compound-leaf patterning involves an array of genetic factors, which act successively to elaborate leaf shape. Furthermore, the results indicate that similar mechanisms underlie SAM activity and compound-leaf patterning in tomato. © 2007 Springer-Verlag.
Scientific Publication
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