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. 1974 Jul;71(7):2787-90.
doi: 10.1073/pnas.71.7.2787.

A possible effect of heterochromatin on chromosome pairing

J B Thomas, P J Kaltsikes

A possible effect of heterochromatin on chromosome pairing

J B Thomas et al. Proc Natl Acad Sci U S A. 1974 Jul.

Abstract

Rye chromosomes were selectively stained in the meiosis of triticale by means of heterochromatin banding techniques. Compared to wheat chromosomes, rye chromosomes showed reduced pairing at first meiotic metaphase. Within the rye genome this pairing failure was associated with the presence of large, terminal heterochromatic bands. Since these terminal bands of rye chromosomes are late replicating, the effect of heterochromatin could arise from an overlap between the processes of chromosome replication and chromosome pairing.

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References

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