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. 2017 Feb 15;8:210. doi: 10.3389/fpls.2017.00210

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Copyright © 2017 Houben.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Hand drawing of Hasegawa (1934) depicting for the first time the process of B chromosome drive at first pollen mitosis in rye (A) metaphase, (B) lagging B chromosome due to non-disjunction. (C) Disjoined sister chromatids of the B chromosome going to different poles, (D) chromosome drive occurs, the future generative nucleus receives both sister chromatids of the B, in contrast the vegetative nucleus contains only the 7 standard A chromosomes. Permission has been obtained for use of copyrighted material from the Japan Mendel Society.