Origin of Arachniodes davaliiformis (Dryopteridaceae)
This study suggested that Arachniodes davaliiformis is allotetraploid between A. exilis and A. sporadosora based on plastid rbcL phylogeny and genome-wide SNPs data obtained from GRAS-Di analysis. In addition, this study also showed A. exilis f. oohorae is the same species of A. exilis, and A. dimorphophylla is different from A. sporadosora.