Integrated genome sequence and linkage map of physic nut (Jatropha curcas L.), a biodiesel plant |
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| Authors: | Pingzhi Wu Changpin Zhou Shifeng Cheng Zhenying Wu Wenjia Lu Jinli Han Yanbo Chen Yan Chen Peixiang Ni Ying Wang Xun Xu Ying Huang Chi Song Zhiwen Wang Nan Shi Xudong Zhang Xiaohua Fang Qing Yang Huawu Jiang Yaping Chen Meiru Li Ying Wang Fan Chen Jun Wang Guojiang Wu |
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| Affiliation: | 1. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China;2. University of Chinese Academy of Sciences, Beijing, China;3. BGI‐Shenzhen, Shenzhen, China;4. National Center for Plant Gene Research, State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China;5. Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan Province, China;6. Department of Biology, University of Copenhagen, Copenhagen, Denmark |
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| Abstract: | The family Euphorbiaceae includes some of the most efficient biomass accumulators. Whole genome sequencing and the development of genetic maps of these species are important components in molecular breeding and genetic improvement. Here we report the draft genome of physic nut (Jatropha curcas L.), a biodiesel plant. The assembled genome has a total length of 320.5 Mbp and contains 27 172 putative protein‐coding genes. We established a linkage map containing 1208 markers and anchored the genome assembly (81.7%) to this map to produce 11 pseudochromosomes. After gene family clustering, 15 268 families were identified, of which 13 887 existed in the castor bean genome. Analysis of the genome highlighted specific expansion and contraction of a number of gene families during the evolution of this species, including the ribosome‐inactivating proteins and oil biosynthesis pathway enzymes. The genomic sequence and linkage map provide a valuable resource not only for fundamental and applied research on physic nut but also for evolutionary and comparative genomics analysis, particularly in the Euphorbiaceae. |
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| Keywords: | physic nut Jatropha curcas L genome sequence linkage map genome evolution gene family oil biosynthesis starch biosynthesis toxicant synthesis |
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