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首页> 外文期刊>Nature >The sunflower genome provides insights into oil metabolism, flowering and Asterid evolution
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The sunflower genome provides insights into oil metabolism, flowering and Asterid evolution

机译：向日葵基因组提供了有关油代谢，开花和紫杉醇进化的见解

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摘要

The domesticated sunflower, Helianthus annuus L., is a global oil crop that has promise for climate change adaptation, because it can maintain stable yields across a wide variety of environmental conditions, including drought(1). Even greater resilience is achievable through the mining of resistance alleles from compatible wild sunflower relatives(2,3), including numerous extremophile species(4). Here we report a high-quality reference for the sunflower genome (3.6 gigabases), together with extensive transcriptomic data from vegetative and floral organs. The genome mostly consists of highly similar, related sequences(5) and required single-molecule real-time sequencing technologies for successful assembly. Genome analyses enabled the reconstruction of the evolutionary history of the Asterids, further establishing the existence of a whole-genome triplication at the base of the Asterids II clade(6) and a sunflower-specific whole-genome duplication around 29 million years ago(7). An integrative approach combining quantitative genetics, expression and diversity data permitted development of comprehensive gene networks for two major breeding traits, flowering time and oil metabolism, and revealed new candidate genes in these networks. We found that the genomic architecture of flowering time has been shaped by the most recent whole-genome duplication, which suggests that ancient paralogues can remain in the same regulatory networks for dozens of millions of years. This genome represents a cornerstone for future research programs aiming to exploit genetic diversity to improve biotic and abiotic stress resistance and oil production, while also considering agricultural constraints and human nutritional needs(8,9).
机译：驯化的向日葵Helianthus annuus L.是一种全球油料作物，有望适应气候变化，因为它可以在包括干旱在内的各种环境条件下保持稳定的产量（1）。通过从相容的野生向日葵亲缘种（2，3），包括许多极端嗜热菌种（4）中挖掘抗性等位基因，可以获得更大的适应力。在这里，我们报告了向日葵基因组的高质量参考文献（3.6 gigabases），以及来自植物和花卉器官的大量转录组数据。基因组主要由高度相似的相关序列（5）和成功组装所需的单分子实时测序技术组成。基因组分析使我们能够重建紫杉醇的进化史，进一步证实了在紫杉醇II进化枝（6）的基础上存在全基因组三倍体的存在和大约2900万年前向日葵特定的全基因组重复体的存在（7）。 ）。综合了定量遗传学，表达和多样性数据的综合方法，可以开发出用于两个主要育种性状（开花时间和油代谢）的全面基因网络，并在这些网络中揭示了新的候选基因。我们发现开花时间的基因组结构已由最新的全基因组重复形成，这表明古代的旁系同源物可以在同一监管网络中保留数千万年。该基因组是未来研究计划的基石，旨在利用遗传多样性来改善生物和非生物的抗逆性以及石油生产，同时还考虑了农业方面的限制和人类的营养需求（8,9）。

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  • 来源
    《Nature》 |2017年第7656期|148-152|共5页
  • 作者

    Badouin Helene; Gouzy Jerome; Grassa Christopher J.; Murat Florent; Staton S. Evan; Cottret Ludovic; Lelandais-Briere Christine; Owens Gregory L.; Carrere Sebastien; Mayjonade Baptiste; Legrand Ludovic; Gill Navdeep; Kane Nolan C.; Bowers John E.; Hubner Sariel; Bellec Arnaud; Berard Aurelie; Berges Helene; Blanchet Nicolas; Boniface Marie-Claude; Brunel Dominique; Catrice Olivier; Chaidir Nadia; Claudel Clotilde; Donnadieu Cecile; Faraut Thomas; Fievet Ghislain; Helmstetter Nicolas; King Matthew; Knapp Steven J.; Lai Zhao; Le Paslier Marie-Christine; Lippi Yannick; Lorenzon Lolita; Mandel Jennifer R.; Marage Gwenola; Marchand Gwenaelle; Marquand Elodie; Bret-Mestries Emmanuelle; Morien Evan; Nambeesan Savithri; Thuy Nguyen; Pegot-Espagnet Prune; Pouilly Nicolas; Raftis Frances; Sallet Erika; Schiex Thomas; Thomas Justine; Vandecasteele Celine; Vares Didier; Vear Felicity; Vautrin Sonia; Crespi Martin; Mangin Brigitte; Burke John M.; Salse Jerome; Munos Stehane; Vincourt Patrick; Rieseberg Loren H.; Langlade Nicolas B.;

  • 作者单位

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France|Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada;

    INRA, UBP UMR GDEC Genet Divers & Ecophysiol Cereals 10, F-63100 Clermont Ferrand, France;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Paris Saclay, CNRS, Inst Plant Sci Paris Saclay IPS2, INRA, F-91405 Orsay, France|Univ Paris Diderot, Inst Plant Sci Paris Saclay IPS2, CNRS, Sorbonne Paris Cite,INRA, F-91405 Orsay, France;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada|Univ Colorado, Dept Ecol & Evolutionary Biol, Boulder, CO 80309 USA;

    Univ Georgia, Miller Plant Sci, Dept Plant Biol, Athens, GA 30602 USA;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada|Tel Hai Acad Coll, Dept Biotechnol, IL-12210 Upper Galilee, Israel|MIGAL Galilee Res Inst, POB 831, IL-11016 Kiryat Shmona, Israel;

    INRA, Ctr Natl Ressources Genom Vegetales, F-31326 Castanet Tolosan, France;

    INRA, US EPGV CEA CNG 1279, Evry, France;

    INRA, Ctr Natl Ressources Genom Vegetales, F-31326 Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    INRA, US EPGV CEA CNG 1279, Evry, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada|Dow AgroSci LLC, Indianapolis, IN 46268 USA;

    Biogemma, F-31700 Mondonville, France;

    INRA, GeT PlaGe, Genotoul, Castanet Tolosan, France;

    INRA, Genet Phsiol & Syst Elevage UMR1388, F-F31326 Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    INRA, Ctr Natl Ressources Genom Vegetales, F-31326 Castanet Tolosan, France;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada|DuPont Pioneer, Johnston, IA 50131 USA;

    Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA;

    Indiana Univ, Dept Biol, Bloomington, IN 47405 USA|Indiana Univ, Ctr Genom & Bioinformat, Bloomington, IN 47405 USA;

    INRA, US EPGV CEA CNG 1279, Evry, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Memphis, Dept Biol Sci, Memphis, TN 38512 USA;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    INRA, US EPGV CEA CNG 1279, Evry, France;

    TERRES INOVIA, UMR Arche INRA ENSAT, F-F31320 Castanet Tolosan, France;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada;

    Univ Georgia, Dept Hort, Athens, GA 30602 USA;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada|Wellcome Trust Sanger Inst, Hinxton CB10 1SA, England;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Toulouse, INRA, MIAT, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    INRA, GeT PlaGe, Genotoul, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    INRA, UBP UMR GDEC Genet Divers & Ecophysiol Cereals 10, F-63100 Clermont Ferrand, France;

    INRA, Ctr Natl Ressources Genom Vegetales, F-31326 Castanet Tolosan, France;

    Univ Paris Saclay, CNRS, Inst Plant Sci Paris Saclay IPS2, INRA, F-91405 Orsay, France|Univ Paris Diderot, Inst Plant Sci Paris Saclay IPS2, CNRS, Sorbonne Paris Cite,INRA, F-91405 Orsay, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Georgia, Miller Plant Sci, Dept Plant Biol, Athens, GA 30602 USA;

    INRA, UBP UMR GDEC Genet Divers & Ecophysiol Cereals 10, F-63100 Clermont Ferrand, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

    Univ British Columbia, Dept Bot, Vancouver, BC, Canada|Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada|Indiana Univ, Dept Biol, Bloomington, IN 47405 USA;

    Univ Toulouse, INRA, CNRS, LIPM, Castanet Tolosan, France;

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