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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 318 - 330 (13page)
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We conducted transcriptome profiling analysis of O. glaberrima root using RNA-Seq at the control (OCR) and 100 mMNaCl treatment (OTR) at two time points (6 and 24 hours after treatment) to detect genes induced by salt stress. RNA-Seq analysisgenerated 102,690,698 sequence reads representing 30,388 predicted transcripts including 6,189 unannotated in Rice AnnotationProject database. A total of 539 and 424 of differentially expressed genes (DEGs) were detected between OCR_6hours vs OTR_6hoursand between OCR_24hours vs OTR_24hours, respectively (P < 0.001, q < 0.05). Among these DEGs, 262 genes showed constantdifferential expression at both 6 hours and 24 hours, and these included a bHLH containing protein, WRKY transcription factor,serine/threonine kinase, R2R3 MYB protein, and amino acid transporters. Interestingly, an enhanced seedling salt tolerant introgressionline IL55 from a cross between a salt sensitive indica cultivar “Milyang23” and O. glaberrima harbors one DEG, Os02g0787300encoding a mitogen activated protein kinase kinase (MAPKK) on chromosome 2. Analysis of the salt tolerance of the F2:3 lines from across between IL55 and Milyang23 indicated that the O. glaberrima segment on chromosome 2 containing the MAPKK gene wasresponsible for better shoot growth under salt stress at the seedling stage. The salt inducible genes will be evaluated in introgressionlines (ILs) to understand whether the expression of these genes is associated with salt tolerance in ILs having the Milyang23 geneticbackground. Transcriptome sequence information in this study may be useful for developing DNA markers linked to salinity tolerancefor MAS breeding.
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참고문헌 (40)
참고문헌 신청
Aluko G / 2004 / QTL mapping of grain quality traits from the interspecific cross Oryza sativa x O. glaberrima / Theor. Appl. Genet 109:630~639
Ashraf M / 2004 / Potential biochemical indicators of salinity tolerance in plant / Plant Sci 166:3~16
Champoux MC / 1995 / Locating genes associated with root morphology and drought avoidance in rice via linkage to molercular markers / Theor. Appl. Genet 90:969~981
Cloonan N / 2008 / Stem cell transcriptomeprofiling via massive-scale mRNA sequencing / Nat. Methods 5:613~619
Courtois B / 2003 / Locationg QTLs controlling constitutive root traits in the rice population IAC X Co39 / Euphytica 134:335~345
Ashraf M / 2004 / Potential biochemical indicators of salinity tolerance in plant / Plant Sci 166:3~16
Champoux MC / 1995 / Locating genes associated with root morphology and drought avoidance in rice via linkage to molercular markers / Theor. Appl. Genet 90:969~981
Cloonan N / 2008 / Stem cell transcriptomeprofiling via massive-scale mRNA sequencing / Nat. Methods 5:613~619
Courtois B / 2003 / Locationg QTLs controlling constitutive root traits in the rice population IAC X Co39 / Euphytica 134:335~345
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