Mixed knobs in corn cobs

Genes Dev. 2020 Sep 1;34(17-18):1110-1112. doi: 10.1101/gad.343350.120.

Abstract

Maize heterochromatic knobs cheat female meiosis by forming neocentromeres that bias their segregation into the future egg cell. In this issue of Genes & Development, Swentowsky and colleagues (pp. 1239-1251) show that two types of knobs, those composed of 180-bp and TR1 sequences, recruit their own novel and divergent kinesin-14 family members to form neocentromeres.

Keywords: anaphase; chromosome segregation; heterochromatin; kinesin-14; knob; meiosis; meiotic drive; neocentromere; tandem repeat.

Publication types

  • Research Support, N.I.H., Extramural
  • Review

MeSH terms

  • Centromere / genetics
  • Genome, Plant* / genetics
  • Kinesins / genetics
  • Kinesins / metabolism
  • Meiosis / genetics
  • Zea mays / genetics*

Substances

  • Kinesins