| Literature DB >> 28481341 |
Jarkko Salojärvi1,2, Olli-Pekka Smolander3, Kaisa Nieminen4, Sitaram Rajaraman1,2, Omid Safronov1,2, Pezhman Safdari1,2, Airi Lamminmäki1,2, Juha Immanen1,2,3, Tianying Lan5, Jaakko Tanskanen2,3,4, Pasi Rastas6, Ali Amiryousefi1,2, Balamuralikrishna Jayaprakash3, Juhana I Kammonen3, Risto Hagqvist7, Gugan Eswaran1,2,3, Viivi Helena Ahonen8, Juan Alonso Serra1,2,3, Fred O Asiegbu2,9, Juan de Dios Barajas-Lopez10, Daniel Blande8, Olga Blokhina1, Tiina Blomster1,2,3, Suvi Broholm2,11, Mikael Brosché1,2,12, Fuqiang Cui1,2, Chris Dardick13, Sanna E Ehonen1,2, Paula Elomaa2,11, Sacha Escamez14, Kurt V Fagerstedt1,2, Hiroaki Fujii10, Adrien Gauthier1,2, Peter J Gollan10, Pauliina Halimaa8, Pekka I Heino2,15, Kristiina Himanen2,11, Courtney Hollender13, Saijaliisa Kangasjärvi10, Leila Kauppinen16, Colin T Kelleher17, Sari Kontunen-Soppela18, J Patrik Koskinen3, Andriy Kovalchuk2,9, Sirpa O Kärenlampi8, Anna K Kärkönen2,11, Kean-Jin Lim2,11, Johanna Leppälä1,2, Lee Macpherson19, Juha Mikola20, Katriina Mouhu2,11, Ari Pekka Mähönen1,2,3, Ülo Niinemets21, Elina Oksanen18, Kirk Overmyer1,2, E Tapio Palva2,15, Leila Pazouki21, Ville Pennanen2,15, Tuula Puhakainen15, Péter Poczai22, Boy J H M Possen23, Matleena Punkkinen10, Moona M Rahikainen10, Matti Rousi23, Raili Ruonala3, Christiaan van der Schoot24, Alexey Shapiguzov1,2,25, Maija Sierla1,2, Timo P Sipilä1,2, Suvi Sutela26, Teemu H Teeri2,11, Arja I Tervahauta8, Aleksia Vaattovaara1,2, Jorma Vahala1,2, Lidia Vetchinnikova27, Annikki Welling1, Michael Wrzaczek1,2, Enjun Xu1,2, Lars G Paulin3, Alan H Schulman2,3,4, Martin Lascoux28, Victor A Albert5, Petri Auvinen3, Ykä Helariutta1,2,3,29, Jaakko Kangasjärvi1,2.
Abstract
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.Entities:
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Year: 2017 PMID： 28481341 DOI： 10.1038/ng.3862
Source DB: PubMed Journal: Nat Genet ISSN： 1061-4036 Impact factor: 38.330