Restorer-of-Fertility Mutations Recovered in Transposon-Active Lines of S Male-Sterile Maize.

ABSTRACT: Mitochondria execute key pathways of central metabolism and serve as cellular sensing and signaling entities, functions that depend upon interactions between mitochondrial and nuclear genetic systems. This is exemplified in cytoplasmic male sterility type S (CMS-S) of Zea mays, where novel mitochondrial open reading frames are associated with a pollen collapse phenotype, but nuclear restorer-of-fertility (restorer) mutations rescue pollen function. To better understand these genetic interactions, we screened Activator-Dissociation (Ac-Ds), Enhancer/Suppressor-mutator (En/Spm), and Mutator (Mu) transposon-active CMS-S stocks to recover new restorer mutants. The frequency of restorer mutations increased in transposon-active stocks compa

SUBMITTER: Gabay-Laughnan S 

PROVIDER: S-EPMC5765357 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature