A tandem array of CBF/DREB1 genes is located in a major freezing tolerance QTL region on Medicago truncatula chromosome 6.

ABSTRACT:

Background

Freezing provokes severe yield losses to different fall-sown annual legumes. Understanding the molecular bases of freezing tolerance is of great interest for breeding programs. Medicago truncatula Gaertn. is an annual temperate forage legume that has been chosen as a model species for agronomically and economically important legume crops. The present study aimed to identify positional candidate genes for a major freezing tolerance quantitative trait locus that was previously mapped to M. truncatula chromosome 6 (Mt-FTQTL6) using the LR3 population derived from a cross between the freezing-tolerant accession F83005-5 and the freezing-sensitive accession DZA045-5.

Results

The confidence interval of Mt-FTQTL6 was narrowed down to the region comprised between markers

SUBMITTER: Tayeh N 

PROVIDER: S-EPMC4046650 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature