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The MADS-box gene DAL1 is a potential mediator of the juvenile-to-adult transition in Norway spruce (Picea abies)

Carlsbecker, Annelie; Tandre, Karolina; Johanson, Urban LU ; Englund, Marie and Engström, Peter (2004) In Plant Journal 40(4). p.546-557
Abstract
Progression through the plant life cycle involves change in many essential features, most notably in the capacity to reproduce. The transition from a juvenile vegetative and non-reproductive to an adult reproductive phase is gradual and can take many years; in the conifer Norway spruce, Picea abies, typically 2025 years. We present a detailed analysis of the activities of three regulatory genes with potential roles in this transition in Norway spruce: DAL1, a MADS-box gene related to the AGL6 group of genes from angiosperms, and the two LEAFY-related genes PaLFY and PaNLY. DAL1 activity is initiated in the shoots of juvenile trees at an age of 35 years, and then increases with age, whereas both LFY genes are active throughout the juvenile... (More)
Progression through the plant life cycle involves change in many essential features, most notably in the capacity to reproduce. The transition from a juvenile vegetative and non-reproductive to an adult reproductive phase is gradual and can take many years; in the conifer Norway spruce, Picea abies, typically 2025 years. We present a detailed analysis of the activities of three regulatory genes with potential roles in this transition in Norway spruce: DAL1, a MADS-box gene related to the AGL6 group of genes from angiosperms, and the two LEAFY-related genes PaLFY and PaNLY. DAL1 activity is initiated in the shoots of juvenile trees at an age of 35 years, and then increases with age, whereas both LFY genes are active throughout the juvenile phase. The activity of DAL1 further shows a spatial pattern along the stem of the tree that parallels a similar gradient in physiological and morphological features associated with maturation to the adult phase. Constitutive expression of DAL1 in transgenic Arabidopsis plants caused a dramatic attenuation of both juvenile and adult growth phases; flowers forming immediately after the embryonic phase of development in severely affected plants. Taken together, our results support the notion that DAL1 may have a regulatory role in the juvenile-to-adult transition in Norway spruce. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Plant Journal
volume
40
issue
4
pages
546 - 557
publisher
Wiley-Blackwell
external identifiers
  • scopus:8444227933
ISSN
1365-313X
DOI
10.1111/j.1365-313X.2004.02226.x
language
English
LU publication?
yes
id
c6818b7e-cdf7-4b5d-83a6-af5c9ab04806 (old id 141378)
date added to LUP
2007-07-04 14:24:20
date last changed
2017-12-10 04:27:22
@article{c6818b7e-cdf7-4b5d-83a6-af5c9ab04806,
  abstract     = {Progression through the plant life cycle involves change in many essential features, most notably in the capacity to reproduce. The transition from a juvenile vegetative and non-reproductive to an adult reproductive phase is gradual and can take many years; in the conifer Norway spruce, Picea abies, typically 2025 years. We present a detailed analysis of the activities of three regulatory genes with potential roles in this transition in Norway spruce: DAL1, a MADS-box gene related to the AGL6 group of genes from angiosperms, and the two LEAFY-related genes PaLFY and PaNLY. DAL1 activity is initiated in the shoots of juvenile trees at an age of 35 years, and then increases with age, whereas both LFY genes are active throughout the juvenile phase. The activity of DAL1 further shows a spatial pattern along the stem of the tree that parallels a similar gradient in physiological and morphological features associated with maturation to the adult phase. Constitutive expression of DAL1 in transgenic Arabidopsis plants caused a dramatic attenuation of both juvenile and adult growth phases; flowers forming immediately after the embryonic phase of development in severely affected plants. Taken together, our results support the notion that DAL1 may have a regulatory role in the juvenile-to-adult transition in Norway spruce.},
  author       = {Carlsbecker, Annelie and Tandre, Karolina and Johanson, Urban and Englund, Marie and Engström, Peter},
  issn         = {1365-313X},
  language     = {eng},
  number       = {4},
  pages        = {546--557},
  publisher    = {Wiley-Blackwell},
  series       = {Plant Journal},
  title        = {The MADS-box gene DAL1 is a potential mediator of the juvenile-to-adult transition in Norway spruce (Picea abies)},
  url          = {http://dx.doi.org/10.1111/j.1365-313X.2004.02226.x},
  volume       = {40},
  year         = {2004},
}