Salt tolerance during germination and seedling growth of wild wheat Aegilops tauschii and its impact on the species range expansion.

ABSTRACT: Adaptation to edaphic stress may have a key role in plant species range expansion. Aegilops tauschii Coss., the common wheat's D-genome progenitor native to the Transcaucasus-Middle East region, is a good model to study the relationships between soil salinity and plant distributions: one of its intraspecific sublineages, TauL1b, drove the long-distance eastward expansion of this species range reaching semi-arid-central Asia. Salt tolerance during germination and seedling growth was evaluated in 206 Ae. tauschii accessions by treating seeds with NaCl solutions differing in concentrations. Differences in natural variation patterns were analyzed between sublineages and associated with natural edaphic condition variables, and then compared with reproductive trait variation patterns. The natura

SUBMITTER: Saisho D 

PROVIDER: S-EPMC5143976 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature