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A major locus contr...
A major locus controls local adaptation and adaptive life history variation in a perennial plant
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- Wang, Jing (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Centre for Integrative Genetics, Department of Animal and Aquacultural Sciences, Faculty of Life Sciences, Norwegian University of Life Sciences, Ås, Norway
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- Ding, Jihua (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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- Tan, Biyue (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Stora Enso Biomaterials, 13104 Nacka, Sweden
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- Robinson, Kathryn M, 1975- (author)
- Umeå universitet,Institutionen för fysiologisk botanik
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- Michelson, Ingrid H. (author)
- Umeå universitet,Institutionen för fysiologisk botanik
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- Johansson, Anna (author)
- Uppsala universitet,Science for Life Laboratory, SciLifeLab
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- Nystedt, Björn (author)
- Uppsala universitet,Science for Life Laboratory, SciLifeLab
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- Scofield, Douglas, 1966- (author)
- Uppsala universitet,Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Department of Ecology and Genetics, Evolutionary Biology, Uppsala University, Uppsala, Sweden; Uppsala Multidisciplinary Center for Advanced Computational Science, Uppsala University, Uppsala, Sweden,Evolutionsbiologi
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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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- Jansson, Stefan, 1959- (author)
- Umeå universitet,Institutionen för fysiologisk botanik
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- Street, Nathaniel R., 1979- (author)
- Umeå universitet,Institutionen för fysiologisk botanik
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- Ingvarsson, Pär K. (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Umeå University
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(creator_code:org_t)
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- 2018-06-04
- 2018
- English.
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In: Genome Biology. - : BioMed Central. - 1465-6906 .- 1474-760X. ; 19
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Abstract
Subject headings
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- Background: The initiation of growth cessation and dormancy represent critical life history trade offs between survival and growth and have important fitness effects in perennial plants Such adaptive life history traits often show strong local adaptation along environmental gradients but, despite then importance, the genetic architecture of these traits remains poorly understood.Results: We integrate whole genome re sequencing with environmental and phenotypic data from common garden experiments to investigate the genomic basis of local adaptation across a latitudinal gradient in European aspen (Populus tremula). A single genomic region containing the PtFT2 gene mediates local adaptation in the timing of bud set and explains 65% of the observed genetic variation in bud set This locus is the likely target of a recent selective sweep that originated right before or during colonization of northern Scandinavia following the last glaciation Field and greenhouse experiments confirm that variation in PtFT2 gene expression affects the phenotypic variation in bud set that we observe in wild natural populations.Conclusions: Our results reveal a major effect locus that determines the timing of bud set and that has facilitated rapid adaptation to shorter growing seasons and colder climates in European aspen. The discovery of a single locus explaining a substantial fraction of the variation in a key life-history trait is remarkable, given that such traits are generally considered to be highly polygenic. These findings provide a dramatic illustration of how loci of large effect for adaptive traits can arise and be maintained over large geographical scales in natural populations.
Subject headings
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
Keyword
- Populus tremula
- Local adaptation
- Genomic basis
- PtFT2
- Adaptive traits
- Selective sweep
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Wang, Jing
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Ding, Jihua
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Tan, Biyue
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Robinson, Kathry ...
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Michelson, Ingri ...
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Johansson, Anna
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show more...
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Nystedt, Björn
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Scofield, Dougla ...
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Nilsson, Ove
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Jansson, Stefan, ...
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Street, Nathanie ...
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Ingvarsson, Pär ...
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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 Genetics
- Articles in the publication
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Genome Biology
- By the university
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Umeå University
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Uppsala University
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Swedish University of Agricultural Sciences