Fine mapping and haplotype structure analysis of a major flowering time quantitative trait locus on maize chromosome 10.

ABSTRACT: Flowering time is a major adaptive trait in plants and an important selection criterion for crop species. In maize, however, little is known about its molecular basis. In this study, we report the fine mapping and characterization of a major quantitative trait locus located on maize chromosome 10, which regulates flowering time through photoperiod sensitivity. This study was performed in near-isogenic material derived from a cross between the day-neutral European flint inbred line FV286 and the tropical short-day inbred line FV331. Recombinant individuals were identified among a large segregating population and their progenies were scored for flowering time. Combined genotypic characterization led to delimit the QTL to an interval of 170 kb and highlighted an unbalanced recombination patte

SUBMITTER: Ducrocq S 

PROVIDER: S-EPMC2787439 | biostudies-literature | 2009 Dec

REPOSITORIES: biostudies-literature