Transcript analysis in two alfalfa salt tolerance selected breeding populations relative to a non-tolerant population

ABSTRACT: With the growing limitations on arable land, alfalfa (a widely cultivated, low-input forage) is now being selected to extend cultivation into saline lands for low-cost biofeedstock purposes. Here, minerals and transcriptome profiles were compared between two new salinity-tolerant North American alfalfa breeding populations and a more salinity-sensitive Western Canadian alfalfa population grown under hydroponic saline conditions. All three populations accumulated two-fold higher sodium in roots than shoots as a function of increased electrical conductivity. At least 50% of differentially expressed genes (p < 0.05) were down-regulated in the salt-sensitive population growing under high salinity, while remaining unchanged in the saline-tolerant populations. In particular, most reduction in tr

ORGANISM(S): Medicago sativa

SUBMITTER: Dwayne Hegedus 

PROVIDER: E-GEOD-84825 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress