Regulation of MIR Genes in Response to Abiotic Stress in Hevea brasiliensis

International Journal of Molecular Sciences

Virginie Glin²  Julie Leclercq²  Songnian Hu¹  Chaorong Tang³ 

[1] Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100029, China; E-Mail:;Centre de Coopération Internationale en Recherche Agronomique Pour le Développement, Unité Mixte de Recherche Amélioration Génétique et Adaptation des Plantes Méditerranéennes et Tropicales, Avenue Agropolis, Montpellier F-34398, France; E-Mails:;Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 531737, China; E-Mail:

关键词: gene expression;    miRNA;    MIR gene;    abiotic stress;    rubber tree;    tapping panel dryness;   

DOI  :  10.3390/ijms141019587

来源: mdpi

【 摘 要 】

Increasing demand for natural rubber (NR) calls for an increase in latex yield and also an extension of rubber plantations in marginal zones. Both harvesting and abiotic stresses lead to tapping panel dryness through the production of reactive oxygen species. Many microRNAs regulated during abiotic stress modulate growth and development. The objective of this paper was to study the regulation of microRNAs in response to different types of abiotic stress and hormone treatments in Hevea. Regulation of MIR genes differs depending on the tissue and abiotic stress applied. A negative co-regulation between HbMIR398b with its chloroplastic HbCuZnSOD target messenger is observed in response to salinity. The involvement of MIR gene regulation during latex harvesting and tapping panel dryness (TPD) occurrence is further discussed.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland