Data from: On the widespread capacity for and functional significance of extreme inbreeding in ferns

Emily B. Sessa, Weston L. Testo, & James E. Watkins
Homosporous vascular plants utilize three different mating systems, one of which, gametophytic selfing, is an extreme form of inbreeding only possible in homosporous groups. This mating system results in complete homozygosity in all progeny and has important evolutionary and ecological implications. Ferns are the largest group of homosporous land plants, and the significance of extreme inbreeding for fern evolution has been the subject of debate for decades. We cultured gametophytes in the laboratory and quantified...
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