Abstract
The appropriate reference genes are crucial for normalization of the target gene expression in qRT-PCR analysis. Broomcorn millet (Panicum miliaceum L.) is one of the most important crops in drought areas worldwide, while the systematical investigation and evaluation of reference genes has not been investigated in this species up to now. Here, 9 commonly used reference genes were selected to detect their expressional stability in different tissues and under different stresses in broomcorn millet. ΔC t , BestKeeper, NormFinder and GeNorm approaches were used to evaluate the potentiality of these candidate genes as the reference gene in broomcorn millet. Taken together, results found that 18S and GAPDH were the suitable reference genes for gene expression normalization in different tissues and under stress treatment in broomcorn millet. This was the first study to investigate the reference genes for qRT-PCR analysis in broomcorn millet, which will facilitate the gene expression studies and also accelerate revealing the molecular mechanism of well-adapted extreme climatic conditions.
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References
Atkinson NJ, Urwin PE (2012) The interaction of plant biotic and abiotic stresses: from genes to the field. J Exp Bot 63:3523–3543
Beekman L, Tohver T, Dardari R, Léguillette R (2011) Evaluation of suitable reference genes for gene expression studies in bronchoalveolar lavage cells from horses with inflammatory airway disease. BMC Mol Biol 12:1
Bellwood P, Gamble C, Le Blanc SA, Pluciennik M, Richards M, Terrell JE (2007) First Farmers: the Origins of Agricultural Societies. Cambridge Archaeological J 17:87–109
Bustin S (2002) Quantification of mRNA using real-time reverse transcription PCR (RT-PCR): trends and problems. J Mol Endocrinol 29:23–39
Close TJ (1996) Dehydrins: emergence of a biochemical role of a family of plant dehydration proteins. Physiol Plantarum 97:795–803
Crawford GW (2006) East Asian plant domestication. Archaeology of Asia:77–95
Cruz F, Kalaoun S, Nobile P, Colombo C, Almeida J, Barros LM, Romano E, Grossi-de-Sá MF, Vaslin M, Alves-Ferreira M (2009) Evaluation of coffee reference genes for relative expression studies by quantitative real-time RT-PCR. Mol Breeding 23:607–616
Fuller DQ (2006) Agricultural origins and frontiers in South Asia: a working synthesis. J World Prehistory 20:1–86
Geiss GK, Bumgarner RE, Birditt B, Dahl T, Dowidar N, Dunaway DL, Fell HP, Ferree S, George RD, Grogan T (2008) Direct multiplexed measurement of gene expression with color-coded probe pairs. Nat Biotechnol 26:317–325
Heller MJ (2002) DNA microarray technology: devices, systems, and applications. Annu Rev Biom Eng 4:129–153
Huang L, Yan H, Jiang X, Yin G, Zhang X, Qi X, Zhang Y, Yan Y, Ma X, Peng Y (2014) Identification of candidate reference genes in perennial ryegrass for quantitative RT-PCR under various abiotic stress conditions. PLoS ONE 9:e93724
Hunt HV, Badakshi F, Romanova O, Howe CJ, Jones MK, Heslop-Harrison JP (2014) Reticulate evolution in Panicum (Poaceae): the origin of tetraploid broomcorn millet, P.miliaceum. J Exp Bot 65:3165–3175
Jain M, Chourey PS, Boote KJ, Allen LH (2010) Short-term high temperature growth conditions during vegetative-to-reproductive phase transition irreversibly compromise cell wall invertasemediated sucrose catalysis and microspore meiosis in grain sorghum (Sorghum bicolor). J Plant Physiol 167:578–582
Jain M, Nijhawan A, Tyagi AK, Khurana JP (2006) Validation of housekeeping genes as internal control for studying gene expression in rice by quantitative real-time PCR. Biochem Biop Res Co 345:646–651
Karami A, Shahbazi M, Niknam V, Shobbar ZS, Tafreshi RS, Abedini R, Mabood HE (2013) Expression analysis of dehydrin multigene family across tolerant and susceptible barley (Hordeum vulgare L.) genotypes in response to terminal drought stress. Acta Physiol Plantarum 35:2289–2297
Kasuga M, Liu Q, Miura S, Yamaguchi-Shinozaki K, Shinozaki K (1999) Improving plant drought, salt, and freezing tolerance by gene transfer of a single stress-inducible transcription factor. Nat Biot 17:287–291
Kozera B, Rapacz M (2013) Reference genes in real-time PCR. J App Genet 54:391–406
Kubista M, Andrade JM, Bengtsson M, Forootan A, Jonák J, Lind K, Sindelka R, Sjöback R, Sjögreen B, Strömbom L (2006) The real-time polymerase chain reaction. Mol Aspects Med 27:95–125
Landi L, Feliziani E, Romanazzi G (2014) Expression of defense genes in strawberry fruits treated with different resistance inducers. J Agr Food Chem 62:3047–3056
Li M-Y, Wang F, Jiang Q, Ma J, Xiong A-S (2014) Identification of SSRs and differentially expressed genes in two cultivars of celery (Apium graveolens L.) by deep transcriptome sequencing. Hort Res 1:10
Livak KJ, Schmittgen TD (2001) Analysis of relative gene expression data using real-time quantitative PCR and the 2-CT method. Methods 25:402–408
Lu H, Zhang J, Liu K-b, Wu N, Li Y, Zhou K, Ye M, Zhang T, Zhang H, Yang X (2009) Earliest domestication of common millet (Panicum miliaceum) in East Asia extended to 10,000 years ago. Proc Nat Acad Sci USA 106:7367–7372
Nolan T, Hands RE, Bustin SA (2006) Quantification of mRNA using real-time RT-PCR. Nat Protoc 1:1559–1582
Ozsolak F, Milos PM (2011) RNA sequencing: advances, challenges and opportunities. Nat Rev Genet 12:87–98
Paolacci AR, Tanzarella OA, Porceddu E, Ciaffi M (2009) Identification and validation of reference genes for quantitative RT-PCR normalization in wheat. BMC Mol Biol 10:1
Pollier J, Bossche RV, Rischer H, Goossens A (2014) Selection and validation of reference genes for transcript normalization in gene expression studies in Catharanthus roseus. Plant Physiol Bioch 83:20–25
Ramakers C, Ruijter JM, Deprez RHL, Moorman AF (2003) Assumptionfree analysis of quantitative real-time polymerase chain reaction (PCR) data. Neuros Lett 339:62–66
Ramya M, Reddy KE, Sivakumar M, Pandurangaiah M, Nareshkumar A, Sudhakarbabu O, Veeranagamallaiah G, Sudhakar C (2013) Molecular Cloning, Characterization and Expression Analysis of Stress Responsive Dehydrin Genes from Drought Tolerant Horsegram (Macrotyloma uniflorum (Lam.) Verdc.). Int J Biotech Bioch 9:293–312
Rapacz M, Stepien A, Skorupa K (2012) Internal standards for quantitative RT-PCR studies of gene expression under drought treatment in barley (Hordeum vulgare L.): the effects of developmental stage and leaf age. Acta Physiol Plant 34:1723–1733
Rizhsky L, Liang H, Shuman J, Shulaev V, Davletova S, Mittler R (2004) When defense pathways collide. The response of Arabidopsis to a combination of drought and heat stress. Plant Physiol 134:1683–1696
Schimpl FC, Domingues Júnior AP, de Carvalho Gonçalves JF, da Silva JF, Mazzafera P (2015) References genes for qRT-PCR in guaraná (Paullina cupana var. sorbilis). Brazil J Bot 38:1–8
Shinozaki K, Yamaguchi-Shinozaki K (1996) Molecular responses to drought and cold stress. Curr Opin Biotech 7:161–167
Tong Z, Gao Z, Wang F, Zhou J, Zhang Z (2009) Selection of reliable reference genes for gene expression studies in peach using realtime PCR. BMC Mol Biol 10:71
Van den Berg N, Crampton BG, Hein I, Birch PR, Berger DK (2004) High-throughput screening of suppression subtractive hybridization cDNA libraries using DNA microarray analysis. Biotechniques 37:818–24.
Wan H, Zhao Z, Qian C, Sui Y, Malik AA, Chen J (2010) Selection of appropriate reference genes for gene expression studies by quantitative real-time polymerase chain reaction in cucumber. Anal Bioch 399:257–261
Wang L, Wang Y, Zhou P (2013) Validation of reference genes for quantitative real-time PCR during Chinese wolfberry fruit development. Plant Physiol Bioch 70:304–310
Wang T, Lu J, Xu Z, Yang W, Wang J, Cheng T, Zhang Q (2014) Selection of suitable reference genes for miRNA expression normalization by qRT-PCR during flower development and different genotypes of Prunus mume. Scientia Horti 169:130–137
Xu Y, Li H, Li X, Lin J, Wang Z, Yang Q, Chang Y (2015) Systematic selection and validation of appropriate reference genes for gene expression studies by quantitative real-time PCR in pear. Acta Physiol Plant 37:1–16
Yan J, Yuan F, Long G, Qin L, Deng Z (2012) Selection of reference genes for quantitative real-time RT-PCR analysis in citrus. Mol Biol Rep 39:1831–1838
Yang H, Liu J, Huang S, Guo T, Deng L, Hua W (2014) Selection and evaluation of novel reference genes for quantitative reverse transcription PCR (qRT-PCR) based on genome and transcriptome data in Brassica napus L. Gene 538:113–122
Yang Y, He M, Zhu Z, Li S, Xu Y, Zhang C, Singer SD, Wang Y (2012) Identification of the dehydrin gene family from grapevine species and analysis of their responsiveness to various forms of abiotic and biotic stress. BMC Plant Biol 12:1
Yeap W-C, Loo JM, Wong YC, Kulaveerasingam H (2014) Evaluation of suitable reference genes for qRT-PCR gene expression normalization in reproductive, vegetative tissues and during fruit development in oil palm. Plant Cell, Tiss Org 116:55–66
Zemp N, Minder A, Widmer A (2014) Identification of internal reference genes for gene expression normalization between the two sexes in dioecious white Campion. PLoS ONE 9:e92893
Zhang B-c, Sun L, Xiao Z-z, Hu Y-h (2014) Quantitative real time RT-PCR study of pathogen-induced gene expression in rock bream (Oplegnathus fasciatus): internal controls for data normalization. Mar Genom 15:75–84
Zhu J, Zhang L, Li W, Han S, Yang W, Qi L (2013) Reference gene selection for quantitative real-time PCR normalization in Caragana intermedia under different abiotic stress conditions. PLoS ONE 8:e53196
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Yue, H., Deng, P., Liu, S. et al. Selection and evaluation of reference genes for quantitative gene expression analysis in broomcorn millet (Panicum miliaceum L.). J. Plant Biol. 59, 435–443 (2016). https://doi.org/10.1007/s12374-016-0024-5
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DOI: https://doi.org/10.1007/s12374-016-0024-5