LINC complexes as regulators of meiosis.

Abstract:

:Meiosis is a key processes of sexual reproduction in eukaryotes. By combining two cell division cycles with a single round of DNA replication meiosis provides a mechanism to generate haploid gametes. Coincidentally, processes involved in ensuring appropriate segregation of homologous chromosomes also result in genetic recombination and shuffling of genes between each generation. During the first meiotic prophase, rapid telomere-led chromosome movements facilitate alignment and pairing of homologous chromosomes. Forces that produce these movements are generated by the cytoskeleton. Force transmission across the nuclear envelope is dependent upon LINC complexes. These structures consist of SUN and KASH domain proteins that span the two nuclear membranes. Together they represent a pair of links in a molecular chain that couples telomeres to the cytoskeleton. In addition to their force transducing role, LINC complexes also have essential functions ensuring the fidelity of recombination between homologous chromosomes. In this way, LINC complexes are now seen as playing an active and integral role in meiotic progression.

journal_name

Curr Opin Cell Biol

authors

Burke B

doi

10.1016/j.ceb.2018.01.005

subject

Has Abstract

pub_date

2018-06-01 00:00:00

pages

22-29

eissn

0955-0674

issn

1879-0410

pii

S0955-0674(17)30056-X

journal_volume

52

pub_type

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