Genome‐wide identification of XTH gene family in Musa acuminata and response analyses of MaXTHs and xyloglucan to low temperature

• DOI: 10.1111/ppl.14231
• Publication Date: 2024-02-29T08:34:45Z
• Authors: Yehuan Tan; Huiling Zhan; Houbin Chen; Xiaoquan Li; Chengjie Chen; Hui Liu; Yilin Chen; Ziyue Zhao; Yinyan Xiao; Jing Liu; Yafang Zhao; Zuxiang Su; Chunxiang Xu
• Keywords: Xyloglucan; Musa acuminata

Abstract Banana ( Musa spp.) production is seriously threatened by low temperature (LT) in tropical and subtropical regions. Xyloglucan endotransglycosylase/hydrolases (XTHs) are considered chief enzymes cell wall remodelling play a central role stress responses. However, whether MaXTHs involved the tolerance banana not clear. Here, identification characterization of were carried out, followed prediction their cis‐acting elements protein–protein interactions. In addition, candidate to LT screened through comparison responses between tolerant sensitive cultivars using RNA‐Seq analysis. Moreover, immunofluorescence (IF) labelling was employed compare changes temporal spatial distribution different types xyloglucan components these two upon stress. total, 53 have been identified, all predicted be located wall, 14 them also cytoplasm. Only 11 found interact with other proteins. Among 16 responsiveness elements, MaXTH26/29/32/35/50 (Group I/II members) MaXTH7/8 IIIB might IF results suggested that content recognized CCRC‐M87/103/104/106 antibodies negatively related chilling tolerance. conclusion, we identified MaXTH gene family assessed re‐modelling under These will beneficial for breeding against stresses enrich wall‐mediated resistance mechanism plants stresses.