Identification of a Dominant Chlorosis Phenotype Through a Forward Screen of the <i>Triticum turgidum</i> cv. Kronos TILLING Population.

ABSTRACT: Durum wheat (Triticum turgidum) derives from a hybridization event approximately 400,000 years ago which led to the creation of an allotetraploid genome. The evolutionary recent origin of durum wheat means that its genome has not yet been fully diploidised. As a result, many of the genes present in the durum genome act in a redundant fashion, where loss-of-function mutations must be present in both gene copies to observe a phenotypic effect. Here, we use a novel set of induced variation within the cv. Kronos TILLING population to identify a locus controlling a dominant, environmentally dependent chlorosis phenotype. We carried out a forward screen of the sequenced cv. Kronos TILLING lines for senescence phenotypes and identified a line with a dominant early senescence and chlorosis

SUBMITTER: Harrington SA 

PROVIDER: S-EPMC6667664 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature