Gene co-expression analysis inferring the crosstalk of ethylene and gibberellin in modulating the transcriptional acclimation of cassava root growth in different seasons

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Author list: Saithong T., Saerue S., Kalapanulak S., Sojikul P., Narangajavana J., Bhumiratana S.

Publisher: Public Library of Science

Publication year: 2015

Journal: PLoS ONE (1932-6203)

Volume number: 10

Issue number: 9

ISSN: 1932-6203

eISSN: 1932-6203

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947431038&doi=10.1371%2fjournal.pone.0137602&partnerID=40&md5=34ab03261215e732d60bd35488da52d4

Languages: English-Great Britain (EN-GB)

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Abstract

Cassava is a crop of hope for the 21st century. Great advantages of cassava over other crops are not only the capacity of carbohydrates, but it is also an easily grown crop with fast development. As a plant which is highly tolerant to a poor environment, cassava has been believed to own an effective acclimation process, an intelligent mechanism behind its survival and sustainability in a wide range of climates. Herein, we aimed to investigate the transcriptional regulation underlying the adaptive development of a cassava root to different seasonal cultivation climates. Gene co-expression analysis suggests that AP2-EREBP transcription factor (ERF1) orthologue (D142) played a pivotal role in regulating the cellular response to exposing to wet and dry seasons. The ERF shows crosstalk with gibberellin, via ent-Kaurene synthase (D106), in the transcriptional regulatory network that was proposed to modulate the downstream regulatory system through a distinct signaling mechanism. While sulfur assimilation is likely to be a signaling regulation for dry crop growth response, calmodulin-binding protein is responsible for regulation in the wet crop. With our initiative study, we hope that our findings will pave the way towards sustainability of cassava production under various kinds of stress considering the future global climate change. ฉ 2015 Liu et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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