Genome variations account for different response to three mineral elements between Medicago truncatula ecotypes Jemalong A17 and R108.

ABSTRACT:

Background

Resequencing can be used to identify genome variations underpinning many morphological and physiological phenotypes. Legume model plant Medicago truncatula ecotypes Jemalong A17 (J. A17) and R108 differ in their responses to mineral toxicity of aluminum and sodium, and mineral deficiency of iron in growth medium. The difference may result from their genome variations, but no experimental evidence supports this hypothesis.

Results

A total of 12,750 structure variations, 135,045 short insertions/deletions and 764,154 single nucleotide polymorphisms were identified by resequencing the genome of R108. The suppressed expression of MtAACT that encodes a putative aluminum-induced citrate efflux transporter by deletion of partial sequence of the second intron may account

SUBMITTER: Wang TZ 

PROVIDER: S-EPMC4031900 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature