Centromeric behaviour in wheat with high and low homoeologous chromosomal pairing
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Updated: Oct 31, 2026

Hi-C: A Method to Study the Three-dimensional Architecture of Genomes.
Published on: May 6, 2010
L Aragón-Alcaide1, S Reader, T Miller
1John Innes Centre, Norwich Research Park, Colney, Norwich NR4 7UH, UK.
Abstract:
Control of homoeologous chromosomal pairing in hexaploid wheat stems from a balance between a number of suppressor and promoter genes. This study used centromeric behaviour as a tool to investigate the mechanism. Fluorescent in situ hybridization employing centromeric and telomeric sequences as probes was applied to pollen mother cells of wheat and wheat/alien hybrids having different pairing gene combinations. It showed: association of centromeres during pre-meiotic interphase; decondensation of centromeric structure; sister chromatid disjunction of univalent chromosomes in homoeologous pairing situations at anaphase I; and centromeric stretching between univalent sister chromatids in wheat/rye hybrids deficient for pairing genes. The implications of these results are discussed.
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