What is it about?
Although hundreds of Genetic male sterility (GMS) mutants have been identified in maize, few are commercially used because of lacking effective methods to multiply high quantity of pure male-sterile seeds. Here, we develop a multi-control sterility (MCS) system based on maize male steriltiy 7 (ms7) mutant and its wild-type Zea mays Male steriltiy 7 (ZmMs7) gene via transgenic strategy, leading to utilization of GMS in hybrid seed production.
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Why is it important?
Our finding show that the transgene transmission rate through pollen of transgenic plants harboring two pollen-disrupt genes is lower than that containing one pollen-disrupt gene. The MCS system has great potential to enhance the efficiency of maize male-sterile line propagation and commercial hybrid seed production.
Perspectives
As the MCS system have many advantages compared to other biotechnology-based breeding system, I hope that this article will lead to a new green revolution in crop breeding and hybrid seed production.
Xiangyuan Wan
University of Science and Technology Beijing
Read the Original
This page is a summary of: Construction of a multicontrol sterility system for a maize male-sterile line and hybrid seed production based on the ZmMs7
gene encoding a PHD-finger transcription factor, Plant Biotechnology Journal, August 2017, Wiley,
DOI: 10.1111/pbi.12786.
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