Validation of a 1DL earliness <i>per se</i> (<i>eps</i>) flowering QTL in bread wheat (<i>Triticum aestivum</i>).

ABSTRACT: Vernalization, photoperiod and the relatively poorly defined earliness per se (eps) genes regulate flowering in plants. We report here the validation of a major eps quantitative trait locus (QTL) located on wheat 1DL using near isogenic lines (NILs). We used four independent pairs of NILs derived from a cross between Spark and Rialto winter wheat varieties, grown in both the field and controlled environments. NILs carrying the Spark allele, defined by QTL flanking markers Xgdm111 and Xbarc62, consistently flowered 3-5 days earlier when fully vernalized relative to those with the Rialto. The effect was independent of photoperiod under field conditions, short days (10-h light), long days (16-h light) and very long days (20-h light). These results validate o

SUBMITTER: Zikhali M 

PROVIDER: S-EPMC4162975 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature