Closely related members of the Medicago truncatula PHT1 phosphate transporter gene family encode phosphate transporters with distinct biochemical activities.

ABSTRACT: Phosphorus is one of the essential mineral nutrients required by all living cells. Plants assimilate phosphate (Pi) from the soil, and their root systems encounter tremendous variation in Pi concentration, both temporally and spatially. Genome sequence data indicate that plant genomes contain large numbers of genes predicted to encode Pi transporters, the functions of which are largely unexplored. Here we present a comparative analysis of four very closely related Pi transporters of the PHT1 family of Medicago truncatula. Based on their sequence similarity and locations in the genome, these four genes probably arose via recent gene duplication events, and they form a small subfamily within the PHT1 family. The four genes are expressed in roots with partially overlapping but distinct spatia

SUBMITTER: Liu J 

PROVIDER: S-EPMC3259825 | biostudies-literature | 2008 Sep

REPOSITORIES: biostudies-literature