Molecular regulation of ZmMs7 required for maize male fertility and development of a dominant male-sterility system in multiple species.

ABSTRACT: Understanding the molecular basis of male sterility and developing practical male-sterility systems are essential for heterosis utilization and commercial hybrid seed production in crops. Here, we report molecular regulation by genic male-sterility gene maize male sterility 7 (ZmMs7) and its application for developing a dominant male-sterility system in multiple species. ZmMs7 is specifically expressed in maize anthers, encodes a plant homeodomain (PHD) finger protein that functions as a transcriptional activator, and plays a key role in tapetal development and pollen exine formation. ZmMs7 can interact with maize nuclear factor Y (NF-Y) subunits to form ZmMs7-NF-YA6-YB2-YC9/12/15 protein complexes that activate target genes by directly binding to CCAAT box in their pr

SUBMITTER: An X 

PROVIDER: S-EPMC7519223 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature