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Cone-setting in spr...
Cone-setting in spruce is regulated by conserved elements of the age-dependent flowering pathway
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- Akhter, Shirin (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtbiologi,Department of Plant Biology
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- Westrin, Karl Johan, 1989- (author)
- KTH,Genteknologi,Science for Life Laboratory, SciLifeLab,Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, Solna, Sweden
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- Zivi, N. (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtbiologi,Department of Plant Biology,Forestry Research Institute of Sweden, Skogforsk
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- Nordal, Veronika (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtbiologi,Department of Plant Biology
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- Kretzschmar, Warren W. (author)
- KTH,Genteknologi,Science for Life Laboratory, SciLifeLab,Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, Solna, Sweden
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- Delhomme, Nicolas (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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- Street, Nathaniel R., 1979- (author)
- Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)
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- Nilsson, Ove (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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- Emanuelsson, Olof (author)
- KTH,Science for Life Laboratory, SciLifeLab,Genteknologi,Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, Solna, Sweden
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- Sundström, Jens (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtbiologi,Department of Plant Biology
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(creator_code:org_t)
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- 2022-09-16
- 2022
- English.
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In: New Phytologist. - : Wiley. - 0028-646X .- 1469-8137. ; 236:5, s. 1951-1963
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Abstract
Subject headings
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- Reproductive phase change is well characterized in angiosperm model species, but less studied in gymnosperms. We utilize the early cone-setting acrocona mutant to study reproductive phase change in the conifer Picea abies (Norway spruce), a gymnosperm. The acrocona mutant frequently initiates cone-like structures, called transition shoots, in positions where wild-type P. abies always produces vegetative shoots. We collect acrocona and wild-type samples, and RNA-sequence their messenger RNA (mRNA) and microRNA (miRNA) fractions. We establish gene expression patterns and then use allele-specific transcript assembly to identify mutations in acrocona. We genotype a segregating population of inbred acrocona trees. A member of the SQUAMOSA BINDING PROTEIN-LIKE (SPL) gene family, PaSPL1, is active in reproductive meristems, whereas two putative negative regulators of PaSPL1, miRNA156 and the conifer specific miRNA529, are upregulated in vegetative and transition shoot meristems. We identify a mutation in a putative miRNA156/529 binding site of the acrocona PaSPL1 allele and show that the mutation renders the acrocona allele tolerant to these miRNAs. We show co-segregation between the early cone-setting phenotype and trees homozygous for the acrocona mutation. In conclusion, we demonstrate evolutionary conservation of the age-dependent flowering pathway and involvement of this pathway in regulating reproductive phase change in the conifer P. abies.
Subject headings
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Bioteknologi med applikationer på växter och djur -- Växtbioteknologi (hsv//swe)
- AGRICULTURAL SCIENCES -- Agricultural Biotechnology -- Plant Biotechnology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
Keyword
- cone-setting
- flowering
- gymnosperm
- Picea abies
- reproductive development
- SPL-gene family
- transcriptome
- allele
- angiosperm
- coniferous tree
- gene expression
- genotype
- mutation
- phenotype
- RNA
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Akhter, Shirin
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Westrin, Karl Jo ...
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Zivi, N.
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Nordal, Veronika
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Kretzschmar, War ...
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Delhomme, Nicola ...
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show more...
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Street, Nathanie ...
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Nilsson, Ove
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Emanuelsson, Olo ...
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Sundström, Jens
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Evolutionary Bio ...
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- AGRICULTURAL SCIENCES
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AGRICULTURAL SCI ...
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and Agricultural Bio ...
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and Plant Biotechnol ...
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- AGRICULTURAL SCIENCES
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AGRICULTURAL SCI ...
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and Agriculture Fore ...
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and Forest Science
- Articles in the publication
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New Phytologist
- By the university
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Royal Institute of Technology
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Umeå University
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Swedish University of Agricultural Sciences