Abstract
Mungbean (Vigna radiata L. Wilczek) is one of the most important leguminous food crops in Asia. We employed Illumina paired-end sequencing to analyse transcriptomes of three different mungbean genotypes. A total of 38.3–39.8 million paired-end reads with 73 bp lengths were generated. The pooled reads from the three libraries were assembled into 56,471 transcripts. Following a cluster analysis, 43,293 unigenes were obtained with an average length of 739 bp and N50 length of 1176 bp. Of the unigenes, 34,903 (80.6%) had significant similarity to known proteins in the NCBI nonredundant protein database (Nr), while 21,450 (58.4%) had BLAST hits in the Swiss-Prot database (E-value<10−5). Further, 1245 differential expression genes were detected among three mungbean genotypes. In addition, we identified 3788 expressed sequence tag-simple sequence repeat (EST-SSR) motifs that could be used as potential molecular markers. Among 320 tested loci, 310 (96.5%) yielded amplification products, and 151 (47.0%) exhibited polymorphisms among six mungbean accessions. These transcriptome data and mungbean EST-SSRs could serve as a valuable resource for novel gene discovery and the marker-assisted selective breeding of this species.
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This research was supported by China Agriculture Research System (CARS-09), Funds for Young Scholar of Hebei Academy of Agricultural and Forestry Sciences (A2015060302) and Science and Technology Support Program of Hebei Province (14226303D).
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[Liu C., Fan B., Cao Z., Su Q., Wang Y., Zhang Z., Wu J. and Tian J. 2016 A deep sequencing analysis of transcriptomes and the development of EST-SSR markers in mungbean (Vigna radiata). J. Genet. 95, xx–xx]
Jing Tian designed the experiment. Changyou Liu carried out the RNA isolation and sequence data analyses, and drafted the manuscript. Jing Tian and Jing Wu assisted in manuscript preparation. Baojie Fan, Zhimin Cao, Qiuzhu Su, Yan Wang and Zhixiao Zhang prepared the plant materials and participated in RNA and DNA extraction and SSR experiment.
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LIU, C., FAN, B., CAO, Z. et al. A deep sequencing analysis of transcriptomes and the development of EST-SSR markers in mungbean (Vigna radiata). J Genet 95, 527–535 (2016). https://doi.org/10.1007/s12041-016-0663-9
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DOI: https://doi.org/10.1007/s12041-016-0663-9