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The DAL10 gene from Norway spruce (Picea abies) belongs to a potentially gymnosperm-specific subclass of MADS-box genes and is specifically active in seed cones and pollen cones.

Carlsbecker, A; Sundström, J; Tandre, K; Englund, M; Kvarnheden, A; Johanson, Urban LU and Engström, P (2003) In Evolution & Development 5(6). p.551-561
Abstract
Transcription factors encoded by different members of the MADS-box gene family have evolved central roles in the regulation of reproductive organ development in the flowering plants, the angiosperms. Development of the stamens and carpels, the pollen- and seed-bearing organs, involves the B- and C-organ-identity MADS-box genes. B- and C-type gene orthologs with activities specifically in developing pollen- and seed-bearing organs are also present in the distantly related gymnosperms: the conifers and the gneto-phytes. We now report on the characterization of DAL10, a novel MADS-box gene from the conifer Norway spruce, which unlike the B- and C-type conifer genes shows no distinct orthology relationship to any angiosperm gene or clade in... (More)
Transcription factors encoded by different members of the MADS-box gene family have evolved central roles in the regulation of reproductive organ development in the flowering plants, the angiosperms. Development of the stamens and carpels, the pollen- and seed-bearing organs, involves the B- and C-organ-identity MADS-box genes. B- and C-type gene orthologs with activities specifically in developing pollen- and seed-bearing organs are also present in the distantly related gymnosperms: the conifers and the gneto-phytes. We now report on the characterization of DAL10, a novel MADS-box gene from the conifer Norway spruce, which unlike the B- and C-type conifer genes shows no distinct orthology relationship to any angiosperm gene or clade in phylogenetic analyses. Like the B- and C-type genes, it is active specifically in developing pollen cones and seed cones. In situ RNA localization experiments show DAL10 to be expressed in the cone axis, which carry the microsporophylls of the young pollen cone. In contrast, in the seed cone it is expressed both in the cone axis and in the bracts, which subtend the ovuliferous scales. Expression data and the phenotype of transgenic Arabidopsis plants expressing DAL10 suggest that the gene may act upstream to or in concert with the B- and C-type genes in the establishment of reproductive identity of developing cones. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Evolution & Development
volume
5
issue
6
pages
551 - 561
publisher
Wiley-Blackwell
external identifiers
  • scopus:0345581063
ISSN
1525-142X
DOI
10.1046/j.1525-142X.2003.03060.x
language
English
LU publication?
yes
id
e11b0ca9-efc7-4da3-8188-85007e05d8bd (old id 132663)
date added to LUP
2007-07-04 14:22:14
date last changed
2018-07-08 03:21:50
@article{e11b0ca9-efc7-4da3-8188-85007e05d8bd,
  abstract     = {Transcription factors encoded by different members of the MADS-box gene family have evolved central roles in the regulation of reproductive organ development in the flowering plants, the angiosperms. Development of the stamens and carpels, the pollen- and seed-bearing organs, involves the B- and C-organ-identity MADS-box genes. B- and C-type gene orthologs with activities specifically in developing pollen- and seed-bearing organs are also present in the distantly related gymnosperms: the conifers and the gneto-phytes. We now report on the characterization of DAL10, a novel MADS-box gene from the conifer Norway spruce, which unlike the B- and C-type conifer genes shows no distinct orthology relationship to any angiosperm gene or clade in phylogenetic analyses. Like the B- and C-type genes, it is active specifically in developing pollen cones and seed cones. In situ RNA localization experiments show DAL10 to be expressed in the cone axis, which carry the microsporophylls of the young pollen cone. In contrast, in the seed cone it is expressed both in the cone axis and in the bracts, which subtend the ovuliferous scales. Expression data and the phenotype of transgenic Arabidopsis plants expressing DAL10 suggest that the gene may act upstream to or in concert with the B- and C-type genes in the establishment of reproductive identity of developing cones.},
  author       = {Carlsbecker, A and Sundström, J and Tandre, K and Englund, M and Kvarnheden, A and Johanson, Urban and Engström, P},
  issn         = {1525-142X},
  language     = {eng},
  number       = {6},
  pages        = {551--561},
  publisher    = {Wiley-Blackwell},
  series       = {Evolution & Development},
  title        = {The DAL10 gene from Norway spruce (Picea abies) belongs to a potentially gymnosperm-specific subclass of MADS-box genes and is specifically active in seed cones and pollen cones.},
  url          = {http://dx.doi.org/10.1046/j.1525-142X.2003.03060.x},
  volume       = {5},
  year         = {2003},
}