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פותח על ידי קלירמאש פתרונות בע"מ -
CaBLIND regulates axillary meristem initiation and transition to flowering in pepper
Year:
2011
Source of publication :
Planta
Authors :
בורובסקי, ילנה
;
.
דוד-שוורץ, רקפת
;
.
חפץ, דר
;
.
פארן, אילן
;
.
Volume :
234
Co-Authors:
Jeifetz, D., Institute of Plant Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, 50250 Bet Dagan, Israel
David-Schwartz, R., Institute of Plant Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, 50250 Bet Dagan, Israel, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
Borovsky, Y., Institute of Plant Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, 50250 Bet Dagan, Israel
Paran, I., Institute of Plant Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, 50250 Bet Dagan, Israel
Facilitators :
From page:
1227
To page:
1236
(
Total pages:
10
)
Abstract:
Plant architecture is a major motif in plant diversity. The shape of the plant is regulated by genes that have been found to have similar or related functions in different species. However, changes in gene regulation or their recruitment to additional developmental pathways contribute to the wide range of plant patterns. Our aim was to unravel the genetic mechanisms governing the unique architecture of pepper (Capsicum annuum) and to determine whether these genetic factors have conserved functions in other plant species. We describe the pepper CaBLIND (CaBL) gene that is orthologous to the tomato (Solanum lycopersicum) BLIND (BL) and to the Arabidopsis thaliana REGULATOR OF AXILLARY MERISTEMS (RAX). We identified two allelic Cabl mutants that show dramatic reduction in axillary meristem initiation. In addition, Cabl exhibits late flowering and ectopic vegetative growth during the reproductive phase. Double-mutant and expression analyses suggest that CaBL functions independently of FASCICULATE, the pepper ortholog of SELF PRUNING in regulating sympodial growth, but is epistatic to FASCICULATE in controlling axillary meristem formation. Furthermore, CaBL operates independently of CaREVOLUTA and CaLATERAL SUPPRESSOR in regulating axillary branching. Our results provide evidence of CaBL's conserved function with BL and RAX genes in regulating axillary meristem initiation early in development. In addition, similar to BL but opposite to RAX, CaBL acts to promote the transition from vegetative to reproductive phase. However, in contrast to BL and RAX, CaBL is co-opted to play a role in suppressing vegetative growth during the reproductive phase in pepper. © 2011 Springer-Verlag.
Note:
Related Files :
arabidopsis
Capsicum annuum
Genetics
Growth, Development and Aging
metabolism
molecular genetics
mutation
phenotype
Reproduction
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s00425-011-1479-8
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
23060
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:56
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Scientific Publication
CaBLIND regulates axillary meristem initiation and transition to flowering in pepper
234
Jeifetz, D., Institute of Plant Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, 50250 Bet Dagan, Israel
David-Schwartz, R., Institute of Plant Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, 50250 Bet Dagan, Israel, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
Borovsky, Y., Institute of Plant Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, 50250 Bet Dagan, Israel
Paran, I., Institute of Plant Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, 50250 Bet Dagan, Israel
CaBLIND regulates axillary meristem initiation and transition to flowering in pepper
Plant architecture is a major motif in plant diversity. The shape of the plant is regulated by genes that have been found to have similar or related functions in different species. However, changes in gene regulation or their recruitment to additional developmental pathways contribute to the wide range of plant patterns. Our aim was to unravel the genetic mechanisms governing the unique architecture of pepper (Capsicum annuum) and to determine whether these genetic factors have conserved functions in other plant species. We describe the pepper CaBLIND (CaBL) gene that is orthologous to the tomato (Solanum lycopersicum) BLIND (BL) and to the Arabidopsis thaliana REGULATOR OF AXILLARY MERISTEMS (RAX). We identified two allelic Cabl mutants that show dramatic reduction in axillary meristem initiation. In addition, Cabl exhibits late flowering and ectopic vegetative growth during the reproductive phase. Double-mutant and expression analyses suggest that CaBL functions independently of FASCICULATE, the pepper ortholog of SELF PRUNING in regulating sympodial growth, but is epistatic to FASCICULATE in controlling axillary meristem formation. Furthermore, CaBL operates independently of CaREVOLUTA and CaLATERAL SUPPRESSOR in regulating axillary branching. Our results provide evidence of CaBL's conserved function with BL and RAX genes in regulating axillary meristem initiation early in development. In addition, similar to BL but opposite to RAX, CaBL acts to promote the transition from vegetative to reproductive phase. However, in contrast to BL and RAX, CaBL is co-opted to play a role in suppressing vegetative growth during the reproductive phase in pepper. © 2011 Springer-Verlag.
Scientific Publication
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