Genomic evolution and insights into agronomic trait innovations of Sesamum species  被引量:1

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作  者:Hongmei Miao Lei Wang Lingbo Qu Hongyan Liu Yamin Sun Meiwang Le Qiang Wang Shuangling Wei Yongzhan Zheng Wenchao Lin Yinghui Duan Hengchun Cao Songjin Xiong Xuede Wang Libin Wei Chun Li Qin Ma Ming Ju Ruihong Zhao Guiting Li Cong Mu Qiuzhen Tian Hongxian Mei Tide Zhang Tongmei Gao Haiyang Zhang 

机构地区:[1]Henan Sesame Research Center,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China [2]TEDA School of Biological Sciences and Biotechnology,Nankai University,Tianjin 300457,China [3]College of Food Science and Technology,Henan Technology University,Zhengzhou 450001,China [4]Institute of Plant Protection Research,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China [5]Crops Research Institute,Jiangxi Academy of Agricultural Sciences,Nanchang 330200,China [6]Crop Research Institute,Anhui Academy of Agricultural Sciences,Hefei 230031,China

出  处:《Plant Communications》2024年第1期262-283,共22页植物通讯(英文)

基  金:supported by earmarked funding for the China Agricultural Research System of MOF and MARA (CARS-14),China;the China National"973"Project (2011CB109304),China;the Henan Zhongyuan Scientist Work Station Construction Fund (092101211100),China;the National Natural Science Foundation of China (U1204318,U1304321,31301653,31471537,and 32172094),China;the Key Project of Science and Technology of Henan Province (201300110600),China;the Key Research Project of the Shennong Laboratory (SN01-2022-04),China;the Key Research and Development Project of Henan Province (221111520400),China;the Innovation Scientists and Technicians Troop Construction Project of the Henan Academy of Agricultural Sciences (2023TD04),China.

摘  要:Sesame is an ancient oilseed crop with high oil content and quality.However,the evolutionary history and genetic mechanisms of its valuable agronomic traits remain unclear.Here,we report chromosome-scale genomes of cultivated sesame(Sesamum indicum L.)and six wild Sesamum species,representing all three karyotypes within this genus.Karyotyping and genome-based phylogenic analysis revealed the evolutionary route of Sesamum species from n=13 to n=16 and revealed that allotetraploidization occurred in the wild species Sesamum radiatum.Early divergence of the Sesamum genus(48.5–19.7 million years ago)during the Tertiary period and its ancient phylogenic position within eudicots were observed.Pan-genome analysis revealed 9164 core gene families in the 7Sesamumspecies.These families are significantly enriched in variousmetabolic pathways,including fatty acid(FA)metabolism and FA biosynthesis.Structural variations in SiPT1 and SiDT1 within the phosphatidyl ethanolamine-binding protein gene family lead to the genomic evolution of plant-architecture and inflorescence-development phenotypes in Sesamum.A genome-wide association study(GWAS)of an interspecific population and genome comparisons revealed a long terminal repeat insertion and a sequence deletion inDIR genes of wildSesamum angustifoliumand cultivated sesame,respectively;both variations independently cause high susceptibility toFusariumwilt disease.A GWAS of 560 sesame accessions combined with an overexpression study confirmed that the NAC1andPPOgenes play an important role in upregulating oil content of sesame.Our study provides high-quality genomic resources for cultivated and wild Sesamum species and insights that can improve molecular breeding strategies for sesame and other oilseed crops.

关 键 词:Sesamum genome evolution structural variation plant architecture Fusarium wilt disease oil content 

分 类 号:Q94[生物学—植物学]

 

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