Fig. 1

Comprehensive Circos plot depicting the frequency and distribution pattern of tandem repeats occurring in the miRNA precursors across different organisms. Outermost circle (I): The names of individual organisms selected for the study whose details are given in Additional file 1. Subsequent Inner circle (II):Phyla based categorization of organisms: Chlorophyta (Chloro), Mycetozoa (Myce), Heterokontophyta (Hete), Embryophyta (Embr), Coniferophyta (Coni), Magnoliophyta (Magn), Porifera (Pori), Cnidaria (Cnid), Platyhelminthes (Plat), Nematoda (Nema), Annelida (Anne), Mollusca(Moll), Nemertea (Neme), Brachiopoda(Brac), Arthropoda(Arth), Deuterostoma(Deut), Hemichordata (Hemi), Echinodermata (Echi) and Chordata(Chor). Subsequent Inner circle (III): Kingdom based classification of organisms: Protista (P), Plantae (P), Animalia (A) and Viruses (V). Subsequent Inner circle (IV): The corresponding serial numbers of organisms, as listed in additional file 1. Subsequent Inner circle (V): The relative count of dinucleotide type of SSRs in miRNA precursors. Subsequent Inner circle (VI): The relative count of trinucleotide type of SSRs in miRNA precursors. Subsequent Inner circle (VII): The relative count of tetranucleotide type of SSRs in miRNA precursors. Subsequent Inner circle (VIII): The relative count of pentanucleotide type of SSRs in miRNA precursors. Subsequent Inner circle (IX): The relative count of hexanucleotide type of SSRs in miRNA precursors. Subsequent Inner circle (X): The total count of miRNA precursors. Subsequent Inner circle (XI): The total count of SSR containing miRNA precursors