English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Meiosis is essential for eukaryotic sexual reproduction and plant fertility. In comparison with over 80 meiotic genes identified in Arabidopsis, there are only ~30 meiotic genes characterized in rice (Oryza sativa L.). Many genes involved in the regulation of meiotic progression remain to be determined. In this study, we identified a sterile rice mutant and cloned a new meiotic gene, OsBVF1 (Bivalent Formation 1) by map-based cloning. Molecular genetics and cytological approaches were carried out to address the function of OsBVF1 in meiosis. Phylogenetic analyses were used to study the evolution of OsBVF1 and its homologs in plant species. Here we showed that the bvf1 male meiocytes were defective in formation of meiotic double strand break, thereby resulting in a failure of bivalent formation in diakinesis and unequal chromosome segregation in anaphase I. The causal gene, OsBVF1, encodes a unique OmpH/coiled-coil motif-containing protein and its homologs are highly conserved in the plant kingdom and seem to be a single-copy gene in the majority of plant species. Our study demonstrates that OsBVF1 is a novel plant-conserved factor involved in meiotic recombination in rice, providing a new insight into understanding of meiotic progression regulation.

Bivalent Formation 1, a plant-conserved gene, encodes an OmpH/coiled-coil motif-containing protein required for meiotic recombination in rice