Ecophysiological Differentiation among Two Resurrection Ferns and Their Allopolyploid Derivative.

ABSTRACT: Theoretically, the coexistence of diploids and related polyploids is constrained by reproductive and competitive mechanisms. Although niche differentiation can explain the commonly observed co-occurrence of cytotypes, the underlying ecophysiological differentiation among cytotypes has hardly been studied. We compared the leaf functional traits of the allotetraploid resurrection fern Oeosporangium tinaei (HHPP) and its diploid parents, O. hispanicum (HH) and O. pteridioides (PP), coexisting in the same location. Our experimental results showed that all three species can recover physiological status after severe leaf dehydration, which confirms their 'resurrection' ability. However, compared with PP, HH had much higher investment per un

SUBMITTER: Quintanilla LG 

PROVIDER: S-EPMC10096763 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature