The MADS-box gene DAL1 is a potential mediator of the juvenile-to-adult transition in Norway spruce (Picea abies)
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/141378
- author
- Carlsbecker, Annelie ; Tandre, Karolina ; Johanson, Urban LU ; Englund, Marie and Engström, Peter
- organization
- publishing date
- 2004
- 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
- 2016-04-01 15:45:18
- date last changed
- 2022-03-14 19:48:36
@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}}, doi = {{10.1111/j.1365-313X.2004.02226.x}}, volume = {{40}}, year = {{2004}}, }