The key role of Urb2 gene in corn seed development and its regulatory mechanism are revealed.

Recently, from Henan Agricultural University, the university's Professor Tang Jihua team and the Chinese Academy of Agricultural Sciences Li literary team, revealed the Urb2 gene in the development of corn seed key role and its regulatory mechanism.
research published in the recently published internationally renowned journal New Botanists.
corn seed development is a very complex biological process, subject to hundreds of gene regulation, seed characteristics as one of the important factors affecting the formation of corn yield, by various environmental factors and genetic factors.
cloning the key genes that control the development of corn seed and exploring its molecular mechanism will help to promote the analysis of the development control network of corn seed, and provide theoretical support for the genetic improvement of corn grain characteristics and yield traits from the molecular level.
researchers sifted through natural mutants in field breeding materials to find a material with a significantly separate size of the grain.
study found that ZmUrb2 is the target gene to control the developmental characteristics of grains, and in-depth analysis of the mechanism of action of the Urb2 gene, it is proved that Urb2 mainly affects the development of the seed grain and the whole nutritional growth process by affecting the biosynthesis of ribosomes and the processing of the ribosome rRNA precursors.
finally, through a single-type analysis, it is proved that hap3 hap3 of the Urb2 gene may be artificially selected as an excellent allelin gene in the domestication of corn from tropical to temperate zone.
the results of this research are of great significance to reveal the regulatory mechanism of corn seed development and the molecular basis of yield formation.
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