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Subject: Bioinformatics × Author: Bishnoi, Stela × End date: 2019 × Start date: 2017 ×
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    ThesisItemOpen Access
    In-silico Prediction of microRNAs and their targets in Wheat (Triticum aestivum L.)
    (CCSHAU, 2019) Bishnoi, Stela; Sudhir Kumar
    Wheat (Triticum aestivum L.), a staple crop which constitutes major part of human diet, belongs to family Poaceae or Gramineae family. As a major constituent of human diet it is therefore one of the most widely cultivated food grain in not only India but the world as well. In India it is the grain with second largest consumption after rice. The miRNAs play a major biological role by modifying the expression levels of a diverse repertoire of genes in a sequence in a dependent manner which is attained at either transcriptional or post-transcriptional level. The Nucleic acids sequences of the 21- chromosomes of Triticum aestivum were downloaded from the International Wheat Genome Sequences Consortium. After downloading wheat genome sequence from IWGSC, the DNA sequence is transcribed into RNA sequence and later split through split.pl which gave an output of 138 fragments. Then after finding out palindromes of fragments using palindrome finding perl script (palindrome.pl). The fragments with at most four mismatches were stored in a file. Secondary structure was predicted using RNAfold server. The sequences are sorted out which have MFE of secondary structure less than -40kcal, and considered as putative miRNAs. From BLAST there identified 699 new miRNAs having 111175 targets. These target genes have regulatory function in certain biological processes.