Sequencing of Cultivated Peanut, Arachis hypogaea, Yields Insights into Genome Evolution and Oil Improvement
作者机构：South China Peanut Sub-center of National Center of Oilseed Crops Improvement Guangdong Key Laboratory for Crops Genetic Improvement Crops Research Institute Guangdong Academy of Agricultural Sciences (GAAS) Guangzhou China Fujian Colleges and Universities Engineering Research Institute of Conservation and Utilization of Natural Bioresources College of Forestry Fujian Agriculture and Forestry University Fuzhou 350002 China Plant Genome Mapping Laboratory University of Georgia Athens USA National Foxtail Millet Improvement Center Minor Cereal Crops Laboratory of Hebei Province Institute of Millet Crops Hebei Academy of Agriculture and Forestry Sciences Shijiazhuang China MolBreeding Biotechnology Co. Ltd. Shijiazhuang China School of Life Sciences and Center for Genomics and Computational Biology North China University of Science and Technology Tangshan China Center of Excellence in Genomics & Systems Biology International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) Hyderabad India Shenzhen Key Laboratory for Orchid Conservation and Utilization National Orchid Conservation Center of China and Orchid Conservation and Research Center of Shenzhen Shenzhen China Shandong Peanut Research Institute Shandong Academy of Agricultural Sciences Qingdao China UWA Institute of Agriculture The University of Western Australia Crawley Australia Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture Fujian Agriculture and Forestry University Fuzhou 350002 China
出 版 物：《Molecular Plant》 (分子植物（英文版）)
年 卷 期：2019年第12卷第7期
页 面：920-934页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 09[农学] 0901[农学-作物学] 0902[农学-园艺学]
基 金：National Natural Science Foundation of China (31501246,31771841,31801401) the Natural Science Foundation of Guangdong Province (2017A030311007) the Modem Agroindustry Technology Research System (CARS-14) the Science and Technology Planning Project of Guangdong Province (2015B020231006, 2015A020209051, 2016B020201003, 2016LM3161, 2016LM3164, 2014A020208060 and S2013020012647) the International Science & Technology Cooperation Program of Guangdong Province (2013B050800021) the Agricultural Science and Technology Program of Guangdong (2013B020301014) the teamwork projects funded Guangdong Natural Science Foundation of Guangdong Province (no. 2017A030312004)
主 题：cultivated peanut denovo sequencing comparative genomics genome evolution oil metabolism
摘 要：Cultivated peanut (Arachis hypogaea) is an allotetraploid crop planted in Asia, Africa, and America for edible oil and protein. To explore the origins and consequences of tetraploidy, we sequenced the allotetraploid A. hypogaea genome and compared it with the related diploid Arachis duranensis and Arachis ipaensis genomes. We annotated 39 888 A-subgenome genes and 41 526 B-subgenome genes in allotetraploid peanut. The A. hypogaea subgenomes have evolved asymmetrically, with the B subgenome resembling the ancestral state and the A subgenome undergoing more gene disruption, loss, conversion, and transposable element proliferation, and having reduced gene expression during seed development despite lacking genome-wide expression dominance. Genomic and transcriptomic analyses identified more than 2 500 oil metabolism-related genes and revealed that most of them show altered expression early in seed development while their expression ceases during desiccation, presenting a comprehensive map of peanut lipid biosynthesis. The availability of these genomic resources will facilitate a better understanding of the complex genome architecture, agronomically and economically important genes, and genetic improvement of peanut.
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