Open AccessA comparative genomics examination of desiccation tolerance and sensitivity in two sister grass species
Author(s) -
Ricardo A. Chávez Montes,
Anna Haber,
Jeremy Pardo,
Robyn F. Powell,
Upendra K Divisetty,
Anderson T. Silva,
Tania HernándezHernández,
Vanildo Silveira,
Haibao Tang,
Eric Lyons,
Luis Herrera-Estrella,
Robert VanBuren,
Melvin J. Oliver
Publication year - 2022
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.2118886119
Subject(s) - desiccation tolerance , desiccation , biology , transcriptome , comparative genomics , drought tolerance , botany , dehydration , cryptobiosis , genome , evolutionary biology , genomics , genetics , gene , gene expression , biochemistry
Significance This is a significant sister group contrast comparative study of the underpinning genomics and evolution of desiccation tolerance (DT), a critical trait in the evolution of land plants. Our results revealed that the DT grassSporobolus stapfianus is transcriptionally primed to tolerate a dehydration/desiccation event and that the desiccation response in the DTS. stapfianus is distinct from the water stress response of the desiccation-sensitiveSporobolus pyramidalis . Our results also show that the desiccation response is largely unique, indicating a recent evolution of this trait within the angiosperms, and that inhibition of senescence during dehydration is likely critical in rendering a plant desiccation tolerant.