A research team from Pohang University of Science and Technology unveiled the mechanism behind crossover interference during meiosis, solving a long-standing mystery in genetics. This breakthrough could revolutionize agricultural breeding by enabling precise control over crop traits, paving the way for improved disease resistance and productivity in plants. a. Genetic isolation of hcr3 mutants using a fluorescent seed crossover measurement system. b. Genomic crossover maps showing a 2-fold increase in crossover in J3G155R transgenic plants expressing hcr3 allele (highlighted in red) compared to the wild type (depicted in blue). c. hcr3 showed an increased number of HEI10 foci and reduced distance between HEI10 foci per bivalent. d. Model illustrating control of HEI10 degradation-mediated crossover interference through the HCR3-HSP70 chaperone network. Credit: POSTECH
SciTechDaily
193 ngày
