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The genome of a wild Medicago species provides insights into the tolerant mechanisms of legume forage to environmental stress

文献类型：期刊论文

作者Wang, Tianzuo; Ren, Lifei; Li, Caihong; Zhang, Di; Zhang, Xiuxiu; Zhou, Gang2; Gao, Dan2; Chen, Rujin3; Chen, Yuhui3; Wang, Zhaolan4
刊名BMC BIOLOGY
出版日期2021
卷号19期号:1
关键词Wild genetic resource Genome Evolution Domestication Comparative genomics Transcriptome Single-nucleotide polymorphism Drought tolerance Medicago ruthenica
DOI10.1186/s12915-021-01033-0
文献子类Article
英文摘要Background Medicago ruthenica, a wild and perennial legume forage widely distributed in semi-arid grasslands, is distinguished by its outstanding tolerance to environmental stress. It is a close relative of commonly cultivated forage of alfalfa (Medicago sativa). The high tolerance of M. ruthenica to environmental stress makes this species a valuable genetic resource for understanding and improving traits associated with tolerance to harsh environments. Results We sequenced and assembled genome of M. ruthenica using an integrated approach, including PacBio, Illumina, 10xGenomics, and Hi-C. The assembled genome was 904.13 Mb with scaffold N50 of 99.39 Mb, and 50,162 protein-coding genes were annotated. Comparative genomics and transcriptomic analyses were used to elucidate mechanisms underlying its tolerance to environmental stress. The expanded FHY3/FAR1 family was identified to be involved in tolerance of M. ruthenica to drought stress. Many genes involved in tolerance to abiotic stress were retained in M. ruthenica compared to other cultivated Medicago species. Hundreds of candidate genes associated with drought tolerance were identified by analyzing variations in single nucleotide polymorphism using accessions of M. ruthenica with varying tolerance to drought. Transcriptomic data demonstrated the involvements of genes related to transcriptional regulation, stress response, and metabolic regulation in tolerance of M. ruthenica. Conclusions We present a high-quality genome assembly and identification of drought-related genes in the wild species of M. ruthenica, providing a valuable resource for genomic studies on perennial legume forages.
学科主题Biology
出版地LONDON
电子版国际标准刊号1741-7007
WOS关键词DNA HELICASE 45 ; TRANSCRIPTION FACTORS ; SEQUENCE ; ALIGNMENT ; PROGRAM ; GENES ; RADIATION ; ALFALFA ; LIGHT ; PEA
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000654882900002
出版者BMC
资助机构National Natural Science Foundation of China [32070351, 31830011] ; Chinese Academy of Sciences [KFJ-STSZDTP-056]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26567]  
专题植被与环境变化国家重点实验室
作者单位1.Inner Mongolia Agr Univ, Coll Ecol & Environm Sci, Hohhot, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
3.Novogene Bioinformat Inst, Beijing, Peoples R China
4.Lanzhou Univ, Sch Life Sci, Lanzhou, Peoples R China
5.Chinese Acad Agr Sci, Inst Grassland Res, Hohhot, Peoples R China
6.Farmer, Andrew D.] Natl Ctr Genome Resources, Santa Fe, NM USA
7.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing, Peoples R China
8.Young, Nevin D.] Univ Minnesota, Dept Plant Pathol, Minneapolis, MN 55455 USA
9.Young, Nevin D.] Univ Minnesota, Dept Plant Biol, Minneapolis, MN 55455 USA
10.Chinese Acad Sci, Inner Mongolia Res Ctr Prataculture, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Tianzuo,Ren, Lifei,Li, Caihong,et al. The genome of a wild Medicago species provides insights into the tolerant mechanisms of legume forage to environmental stress[J]. BMC BIOLOGY,2021,19(1).
APA Wang, Tianzuo.,Ren, Lifei.,Li, Caihong.,Zhang, Di.,Zhang, Xiuxiu.,...&Zhang, Wen-Hao.(2021).The genome of a wild Medicago species provides insights into the tolerant mechanisms of legume forage to environmental stress.BMC BIOLOGY,19(1).
MLA Wang, Tianzuo,et al."The genome of a wild Medicago species provides insights into the tolerant mechanisms of legume forage to environmental stress".BMC BIOLOGY 19.1(2021).

入库方式： OAI收割

来源：植物研究所

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