design: Hi-C libraries were prepared using the Proximo Hi-C Plant Kit (Phase Genomics, Cat. No. KT3040) following the manufacturers protocol. Approximately 1g of non-woody P. tetragonolobus tissue was used. Briefly, tissue was crosslinked, lysed, and chromatin was fragmented, followed by proximity ligation to capture spatially adjacent DNA fragments. Crosslinks were reversed and DNA was purified for library construction via adapter ligation and PCR amplification. Final Hi-C libraries were quantified using a Qubit 4.0 fluorometer (Thermo Fisher Scientific, Cat. No. Q33238) with the DNA High Sensitivity assay kit (Cat. No. Q32851). Fragment size distribution was analyzed using an Agilent 2100 Bioanalyzer. Libraries that passed quality control were sequenced on an Illumina NovaSeq 6000 platform (S4 flow cell, 2  150 bp paired-end chemistry) at Nucleome Informatics Pvt. Ltd., Hyderabad, India.