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Transcriptomic evaluation of Miscanthus photosynthetic traits to salinity stress
Wang, Qian1; Kan, Lifang; Lin, Cong; Song, Zhihong1; Tao, Chen Then1; Liu, Wei; Sang, Tao1,2; Yan, Juan3
Source PublicationBIOMASS & BIOENERGY
AbstractMiscanthus lutarioriparius, an endemic species of Miscanthus (Poaceae) in China, is considered to be one of the most promising second-generation energy crops that could grow in the condition of salinity stress. Studying photosynthetic traits of M. lutarioriparius under salinity stress can uncover the adaptability and foundation for selecting stress-resistant energy crops. In this study, several M. lutarioriparius populations were planted with randomized block design in the coastal saline experimental field in Dongying similar to 7 parts per thousand in sanility), Shandong Province. After two growing seasons, we randomly sampled 50 individuals from five populations, correspondingly performed their photosynthetic analysis and RNA-Seq. We found the photosynthetic rate (A) of these individuals ranged from 19.19 to 42.80 mu mol m(-2)s(-1), at an average of 32.58 mu mol m(-2)s(-1). The mean of stomatal conductance (g(s)) was 0.56 mol m(-2)s(-1). The water use efficiency was mainly impacted by transpiration rates. The candidate genes related to photosynthetic rate mainly involved in photosynthesis, osmoregulation, abiotic stress and signal transduction. The stress-resistance genes had a significant effect on photosynthesis under long-term salinity stress, and most of the candidate genes were potentially beneficial for M. lutarioriparius to adapt to the stressful environment. Therefore, we inferred that M. lutarioriparius did not achieve adaptation by directly altering the expressions of the photosynthetic key genes, but by repairing and regulating the functions of key genes in order to maintain normal photosynthesis.
KeywordMiscanthus lutarioriparius Salinity stress Photosynthetic traits Gene expression Energy crop domestication
Subject AreaAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
Indexed BySCI
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000468294800014
Publication PlaceOXFORD
Funding OrganizationKey Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [KFZD-SW-112-01-08] ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences [KFJ-EW-STS-061] ; Youth Promotion Association of the Chinese Academy of Sciences [Y829281G02] ; Project for Autonomous Deployment of the Wuhan Botanical Garden [55Y755271G02]
Corresponding Author Emailsang@ibcas.ac.cn ; yanj@wbgcas.cn
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources & Beijing Bot Garden, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
4.Chinese Acad Sci, Wuhan Bot Garden, CAS Key Lab Plant Germplasm Enhancement & Special, Wuhan 430074, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Wang, Qian,Kan, Lifang,Lin, Cong,et al. Transcriptomic evaluation of Miscanthus photosynthetic traits to salinity stress[J]. BIOMASS & BIOENERGY,2019,125:123-130.
APA Wang, Qian.,Kan, Lifang.,Lin, Cong.,Song, Zhihong.,Tao, Chen Then.,...&Yan, Juan.(2019).Transcriptomic evaluation of Miscanthus photosynthetic traits to salinity stress.BIOMASS & BIOENERGY,125,123-130.
MLA Wang, Qian,et al."Transcriptomic evaluation of Miscanthus photosynthetic traits to salinity stress".BIOMASS & BIOENERGY 125(2019):123-130.
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