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Dear Editor,Next-generation sequencing (NGS) technologies have resulted in a massive surge of high-throughput genomic data,particularly for the plant kingdom,boosting the development of methods for gene family discovery and identification of clustering pattes at genomic scales.Plants are well known for the occurrence of both genic and chromosomal duplications that have resulted in the widespread existence of gene families in this kingdom,apart from being associated with subsequent evolutionary divergence via sub-functionalization or neofunctionalization (Flagel and Wendel,2009).