Diversity and selective sweep in the OsAMT1;1 genomic region of rice.

ABSTRACT:

Background

Ammonium is one of the major forms in which nitrogen is available for plant growth. OsAMT1;1 is a high-affinity ammonium transporter in rice (Oryza sativa L.), responsible for ammonium uptake at low nitrogen concentration. The expression pattern of the gene has been reported. However, variations in its nucleotides and the evolutionary pathway of its descent from wild progenitors are yet to be elucidated. In this study, nucleotide diversity of the gene OsAMT1;1 and the diversity pattern of seven gene fragments spanning a genomic region approximately 150 kb long surrounding the gene were surveyed by sequencing a panel of 216 rice accessions including both cultivated rice and wild relatives.

Results

Nucleotide polymorphism (Pi) of OsAMT1;1 was as low as 0.00004 in cu

SUBMITTER: Ding Z 

PROVIDER: S-EPMC3062601 | biostudies-literature | 2011 Mar

REPOSITORIES: biostudies-literature