SRX5328023 ITS SN52240-SN52295 ITS sequencing of pearl millet rhizosphere SRP151270 PRJNA475215 The sequencing was performed by MR DNA using a Ion Torent PGM machine SRS4322752 SAMN10857375 ITS SN52240-SN52295 AMPLICON METAGENOMIC PCR Ion Torrent PGM