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Evolutionary transc...
Evolutionary transcriptomics reveals the origins of olives and the genomic changes associated with their domestication
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- Gros-Balthazard, Muriel (författare)
- Univ Montpellier, Montpellier SupAgro, INRA, CIRAD,AGAP, Montpellier, France;NYUAD, Ctr Genom & Syst Biol, Abu Dhabi, U Arab Emirates
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- Besnard, Guillaume (författare)
- CNRS UPS IRD, UMR5174, Lab EDB, Toulouse, France
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- Sarah, Gautier (författare)
- Univ Montpellier, Montpellier SupAgro, INRA, CIRAD,AGAP, Montpellier, France
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- Holtz, Yan (författare)
- Univ Montpellier, Montpellier SupAgro, INRA, CIRAD,AGAP, Montpellier, France
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- Leclercq, Julie (författare)
- Univ Montpellier, Montpellier SupAgro, INRA, CIRAD,AGAP, Montpellier, France
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- Santoni, Sylvain (författare)
- Univ Montpellier, Montpellier SupAgro, INRA, CIRAD,AGAP, Montpellier, France
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- Wegmann, Daniel (författare)
- Univ Fribourg, Dept Biol, Fribourg, Switzerland;Swiss Inst Bioinformat, Fribourg, Switzerland
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- Glemin, Sylvain (författare)
- Uppsala universitet,Växtekologi och evolution,Univ Rennes, CNRS, ECOBIO Ecosyst Biodiversite Evolut UMR 6553, F-35000 Rennes, France;
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- Khadari, Bouchaib (författare)
- Univ Montpellier, Montpellier SupAgro, INRA, CIRAD,AGAP, Montpellier, France;UMR AGAP, Conservatoire Bot Natl Mediterraneen, Montpellier, France
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(creator_code:org_t)
- 2019-07-11
- 2019
- Engelska.
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Ingår i: The Plant Journal. - : WILEY. - 0960-7412 .- 1365-313X. ; 100:1, s. 143-157
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://onlinelibrar...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The olive (Olea europaea L. subsp. europaea) is one of the oldest and most socio-economically important cultivated perennial crop in the Mediterranean region. Yet, its origins are still under debate and the genetic bases of the phenotypic changes associated with its domestication are unknown. We generated RNA-sequencing data for 68 wild and cultivated olive trees to study the genetic diversity and structure both at the transcription and sequence levels. To localize putative genes or expression pathways targeted by artificial selection during domestication, we employed a two-step approach in which we identified differentially expressed genes and screened the transcriptome for signatures of selection. Our analyses support a major domestication event in the eastern part of the Mediterranean basin followed by dispersion towards the West and subsequent admixture with western wild olives. While we found large changes in gene expression when comparing cultivated and wild olives, we found no major signature of selection on coding variants and weak signals primarily affected transcription factors. Our results indicated that the domestication of olives resulted in only moderate genomic consequences and that the domestication syndrome is mainly related to changes in gene expression, consistent with its evolutionary history and life history traits.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
Nyckelord
- artificial selection
- differential expression analysis
- domestication
- Olea europaea (olive tree)
- perennial crop
- RNA-sequencing
- transcriptomics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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