CONFLICT OF INTEREST The authors declare no conflict of interest. DATA AVAILABILITY STATEMENT The data that support the findings of this study are openly available in Genome Sequence Archive (GSA) at the National Genomics Data at https://ngdc.cncb.ac.cn/gsa/browse/CRA027619, reference number CRA027619. Supporting Information Filename Description tpj70988-sup-0001-FigureS1-S9.pdfPDF document, 1.3 MB Figure S1. Chromosomal distribution and tandem duplication events of the RtXTH gene family.