Transcriptomic study of banana roots in response to iron deficiency and high iron

Iron is a crucial micronutrient for all living things (Fe). Fe deficiency in agricultural plants can significantly lower crop production. Plants have several complex transport, storage, and control mechanisms that keep iron levels in balance. Transcriptome alterations caused by iron deficiency in banana roots using RNA sequencing was performed. It was observed that different genes exhibited different patterns of expression throughout the whole genome when Fe deficiency was applied to banana roots. Further, several different types of transporters were expressed, including metal transporters, ATP-BINDING CASSETTE (ABC) transporters, zinc-induced facilitator-like protein, zinc finger protein, NATURAL RESISTANCE ASSOCIATED MACROPHAGE PROTEIN (NRAMP) family, auxin responsive factor, ethylene responsive factor, MAJOR FACILITATOR SUPERFAMILY, E3 ubiquitin ligase, and OLIGOPEPTIDE. Together, these results provide fresh insight into the molecular mechanisms underlying the response of the banana root to Fe deficiency and lay the groundwork for devising creative strategies to improve Fe nutrition in crops. This information might serve as a reference for creating crops that are resilient to the impacts of iron deficiency stress and for creating efficient strategies for biofortification of banana with iron.