A Comprehensive Expression Profile of MicroRNAs and Other Classes of Non-Coding Small RNAs in Barley Under Phosphorous-Deficient and -Sufficient Conditions Hackenberg, Michael Huang, Po-Jung Huang, Chun-Yuan Shi, Bu-Jun Gustafson, Perry Langridge, Peter Deep-Sequencing Barley Phosphorus Non-coding small RNAs miRNAs Differential expression The authors wish to thank Ursula Langridge, Hui Zhou, Bryce Shi and Petrus Tang for providing assistance. The authors also thank Dr Julie Hayes for her careful and critical reading of the manuscript Phosphorus (P) is essential for plant growth. MicroRNAs (miRNAs) play a key role in phosphate homeostasis. However, little is known about P effect on miRNA expression in barley (Hordeum vulgare L.). In this study, we used Illumina's next-generation sequencing technology to sequence small RNAs (sRNAs) in barley grown under P-deficient and P-sufficient conditions. We identified 221 conserved miRNAs and 12 novel miRNAs, of which 55 were only present in P-deficient treatment while 32 only existed in P-sufficient treatment. Total 47 miRNAs were significantly differentially expressed between the two P treatments (|log2| > 1). We also identified many other classes of sRNAs, including sense and antisense sRNAs, repeat-associated sRNAs, transfer RNA (tRNA)-derived sRNAs and chloroplast-derived sRNAs, and some of which were also significantly differentially expressed between the two P treatments. Of all the sRNAs identified, antisense sRNAs were the most abundant sRNA class in both P treatments. Surprisingly, about one-fourth of sRNAs were derived from the chloroplast genome, and a chloroplast-encoded tRNA-derived sRNA was the most abundant sRNA of all the sRNAs sequenced. Our data provide valuable clues for understanding the properties of sRNAs and new insights into the potential roles of miRNAs and other classes of sRNAs in the control of phosphate homeostasis. 2020-07-27T12:06:51Z 2020-07-27T12:06:51Z 2013-04 info:eu-repo/semantics/article Michael Hackenberg, Po-Jung Huang, Chun-Yuan Huang, Bu-Jun Shi, Perry Gustafson, Peter Langridge, A Comprehensive Expression Profile of MicroRNAs and Other Classes of Non-Coding Small RNAs in Barley Under Phosphorous-Deficient and -Sufficient Conditions, DNA Research, Volume 20, Issue 2, April 2013, Pages 109–125, [https://doi.org/10.1093/dnares/dss037] http://hdl.handle.net/10481/63158 10.1093/dnares/dss037 eng http://creativecommons.org/licenses/by-nc/3.0/es/ info:eu-repo/semantics/openAccess Atribución-NoComercial 3.0 España Oxford University Press