Sökning: onr:"swepub:oai:DiVA.org:kth-290028" >
Transcriptome studi...
Transcriptome studies of the early cone-setting acrocona mutant provide evidence for a functional conservation of the age-dependent flowering pathway between angiosperms and gymnosperms.
-
- Akhter, Shirin (författare)
- Sveriges Lantbruksuniversitet
-
- Westrin, Karl Johan, 1989- (författare)
- KTH,Genteknologi,Emanuelsson Lab
-
- Zivi, Nathan (författare)
- Sveriges lantbruksuniversitet, Skogforsk
-
visa fler...
-
- Nordal, Veronika (författare)
- Sveriges Lantbruksuniversitet
-
- Kretzschmar, Warren W. (författare)
- Karolinska Institutet
-
- Delhomme, Nicolas (författare)
- Sveriges Lantbruksuniversitet
-
- Street, Nathaniel R. (författare)
- Umeå Universitet
-
- Nilsson, Ove (författare)
- Sveriges Lantbruksuniversitet
-
- Emanuelsson, Olof (författare)
- KTH,Genteknologi,Emanuelsson Lab
-
- Sundström, Jens (författare)
- Sveriges lantbruksuniversitet
-
visa färre...
-
(creator_code:org_t)
- Engelska.
- Relaterad länk:
-
https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- All seed plants go through a juvenile period before they initiate seed- and pollen-bearing organs and reproduce. Reproductive phase-change is well characterized in angiosperm model species, but much less well described in gymnosperms. Here, we utilize the early cone-setting acrocona mutant to study reproductive phase change in the conifer Picea abies; a representative of the gymnosperm lineage. The acrocona mutant frequently initiates cone-like structures, called transition shoots, in positions where wild-type P. abies always produces vegetative shoots. By sequence analysis of mRNA and microRNA transcripts, we demonstrate that orthologous components of the Age-dependent flowering pathway are active at the time of cone initiation. We show that a member of the SQUAMOSA BINDING PROTEIN-LIKE (SPL) gene family, PaSPL7, is active in reproductive meristems, whereas a putative negative regulator of PaSPL7, microRNA156 is upregulated in vegetative meristem. By allele-specific assembly, we also identify a short nucleotide polymorphism (SNP) in the miRNA156 binding of PaSPL7. By genotyping a segregating population of inbred acrocona trees, we show a clear co-segregation between the early cone-setting phenotype and trees homozygous for the SNP. Hence, the data presented demonstrate evolutionary conservation of the age-dependent flowering pathway and involvement of this pathway in regulating cone-setting in the conifer P. abies.
Ämnesord
- NATURVETENSKAP -- Biologi -- Bioinformatik och systembiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Bioinformatics and Systems Biology (hsv//eng)
Nyckelord
- Bioteknologi
- Biotechnology
Publikations- och innehållstyp
- vet (ämneskategori)
- ovr (ämneskategori)
- Av författaren/redakt...
-
Akhter, Shirin
-
Westrin, Karl Jo ...
-
Zivi, Nathan
-
Nordal, Veronika
-
Kretzschmar, War ...
-
Delhomme, Nicola ...
-
visa fler...
-
Street, Nathanie ...
-
Nilsson, Ove
-
Emanuelsson, Olo ...
-
Sundström, Jens
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Biologi
-
och Bioinformatik oc ...
- Av lärosätet
-
Kungliga Tekniska Högskolan