Genome sequencing and population genomic analyses provide insights into the adaptive landscape of silver birch
2017
Salojärvi, Jarkko | Smolander, Olli-Pekka | Nieminen, Kaisa | Rajaraman, Sitaram | Safronov, Omid | Safdari, Pezhman | Lamminmäki, Airi | Immanen, Juha | Lan, Tianying | Tanskanen, Jaakko | Rastas, Pasi | Amiryousefi, Ali | Jayaprakash, Balamuralikrishna | Kammonen, Juhana | Hagqvist, Risto | Eswaran, Gugan | Ahonen, Viivi Helena | Serra, Juan Alonso | Asiegbu, Fred | de Dios Barajas-Lopez, Juan | Blande, Daniel | Blokhina, Olga | Blomster, Tiina | Broholm, Suvi | Brosché, Mikael | Cui, Fuqiang | Dardick, Chris | Ehonen, Sanna | Elomaa, Paula | Escamez, Sacha | Fagerstedt, Kurt | Fujii, Hiroaki | Gauthier, Adrien | Gollan, Peter | Halimaa, Pauliina | Heino, Pekka | Himanen, Kristiina | Hollender, Courtney | Kangasjärvi, Saijaliisa | Kauppinen, Leila | Kelleher, Colin | Kontunen-Soppela, Sari | Koskinen, J Patrik | Kovalchuk, Andriy | Kärenlampi, Sirpa | Kärkönen, Anna | Lim, Kean-Jin | Leppälä, Johanna | Macpherson, Lee | Mikola, Juha | Mouhu, Katriina | Mähönen, Ari Pekka | Niinemets, Ülo | Oksanen, Elina | Overmyer, Kirk | Palva, E Tapio | Pazouki, Leila | Pennanen, Ville | Puhakainen, Tuula | Poczai, Péter | Possen, Boy | Punkkinen, Matleena | Rahikainen, Moona | Rousi, Matti | Ruonala, Raili | van Der Schoot, Christiaan | Shapiguzov, Alexey | Sierla, Maija | Sipilä, Timo | Sutela, Suvi | Teeri, Teemu | Tervahauta, Arja | Vaattovaara, Aleksia | Vahala, Jorma | Vetchinnikova, Lidia | Welling, Annikki | Wrzaczek, Michael | Xu, Enjun | Paulin, Lars | Schulman, Alan | Lascoux, Martin | Albert, Victor | Auvinen, Petri | Helariutta, Ykä | Kangasjärvi, Jaakko | Department of Plant Molecular Biology ; Université de Lausanne = University of Lausanne (UNIL) | Department of Biological Sciences [Buffalo] ; University at Buffalo [SUNY] (SUNY Buffalo) ; State University of New York (SUNY)-State University of New York (SUNY) | Department of Zoology [Cambridge] ; University of Cambridge [UK] (CAM) | Ecophysiologie Végétale, Agronomie et Nutritions (EVA) ; Université de Caen Normandie (UNICAEN) ; Normandie Université (NU)-Normandie Université (NU)-Institut National de la Recherche Agronomique (INRA) | Division of Plant Physiology ; Helsingin yliopisto = Helsingfors universitet = University of Helsinki | Plante - microbe - environnement : biochimie, biologie cellulaire et écologie (PMEBBCE) ; Etablissement National d'Enseignement Supérieur Agronomique de Dijon (ENESAD)-Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) | University of Turku | University of Eastern Finland | Department of Forest Sciences [Helsinki] ; Faculty of Agriculture and Forestry [Helsinki] ; Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki | Estonian University of Life Sciences (EMU) | Viikki Plant Science Centre (ViPS) ; Faculty of Biological and Environmental Sciences [Helsinki] ; Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki | Helsingin yliopisto = Helsingfors universitet = University of Helsinki | Natural Resources Institute Finland (LUKE) | University of Oulu [Finland] = Oulun yliopisto [Suomi] = Université d'Oulu [Finlande] | Department of Ecology and Genetics [Uppsala] (EBC) ; Uppsala University | University of Cambridge [UK] (CAM)
International audience
Показать больше [+] Меньше [-]Английский. Silver birch (Betula pendula) is a pioneer boreal tree that can be induced to flower within 1 year. Its rapid life cycle, small (440-Mb) genome, and advanced germplasm resources make birch an attractive model for forest biotechnology. We assembled and chromosomally anchored the nuclear genome of an inbred B. pendula individual. Gene duplicates from the paleohexaploid event were enriched for transcriptional regulation, whereas tandem duplicates were overrepresented by environmental responses. Population resequencing of 80 individuals showed effective population size crashes at major points of climatic upheaval. Selective sweeps were enriched among polyploid duplicates encoding key developmental and physiological triggering functions, suggesting that local adaptation has tuned the timing of and cross-talk between fundamental plant processes. Variation around the tightly-linked light response genes PHYC and FRS10 correlated with latitude and longitude and temperature, and with precipitation for PHYC. Similar associations characterized the growth-promoting cytokinin response regulator ARR1, and the wood development genes KAK and MED5A.
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