Introduction Arid and semi-arid regions are climate-sensitive areas, which account for about
40% of the world's land surface area. Future environment change will impact the …

Premise In the ferns, cell size has been explored with spores, which are largely uniform
within species, produced in abundance, and durable. However, spore size and shape have …

Allopolyploids represent a new frontier in species discovery among embryophytes. Within
mosses, allopolyploid discovery is challenged by low morphological complexity. The rapid …

Karyotypic diversity is critical to catalyzing change in the evolution of all plants. By resulting
in meiotic incompatibility among sets of homologous chromosomes, polyploidy and …

Navigating the challenges in apomixis population genetics requires a comprehensive
understanding of its unique genetic consequences. This review explores the population …

Premise Apomixis (asexual reproduction by seed, spore, or egg) has evolved repeatedly
across the tree of life. Studies of animals and angiosperms show that apomictic lineages are …

Premise The great variation of genome size (C‐value) across land plants is linked to various
adaptative features. Flow cytometry (FCM), the standard approach to estimating C‐values …

Following results of recent studies, Huperzia myriophyllifolia (Huperziaceae), Lycopodium
subinundatum (Lycopodiaceae), and Polystichum pseudodeltodon, P. pseudostenophyllum …

Premise Apomixis and hybridization are two essential and complementary factors in the
evolution of plants, including ferns. Hybridization combines characteristics from different …

Methods Flow cytometry was conducted on 24 spore samples, representing eight of the 12
genera of the Ophioglossaceae, using specimens ranging in age from 2.6 to 111 years …