2018
DOI: 10.1101/471243
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Recurrent losses and rapid evolution of the condensin II complex in insectsg

Abstract: Condensins play a crucial role in the organization of genetic material by compacting and disentangling chromosomes. The condensin I and condensin II complexes are widely considered to have distinct functions based on studies in a few model organisms, although the specific functions of each complex are yet to be fully understood. The condensin II complex is critical for genome organization in Drosophila, and is a key anti-pairing factor that separates homologous chromosomes in somatic cells. Intriguingly, the C… Show more

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Cited by 2 publications
(1 citation statement)
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“…Intriguingly, the cap-g2 gene is missing in the genome of the fruit fly D. melanogaster (Herzog et al, 2013), although the cap-d3 and cap-h2 genes have meiotic functions and participate in interphase chromosome territory formation (Hartl et al, 2008;Rosin et al, 2018). Moreover, a recent survey has revealed recurrent losses and rapid evolution of the condensin II complex in insect species (King et al, 2019): among the genes encoding the non-SMC subunits of condensin II, cap-g2 has been lost most frequently during insect evolution. Our current results show that the mutant complex lacking CAP-G2 is able to support chenille-like chromosome assembly even at a lower concentration than the holocomplex.…”
Section: Evolutionary Implicationsmentioning
confidence: 99%
“…Intriguingly, the cap-g2 gene is missing in the genome of the fruit fly D. melanogaster (Herzog et al, 2013), although the cap-d3 and cap-h2 genes have meiotic functions and participate in interphase chromosome territory formation (Hartl et al, 2008;Rosin et al, 2018). Moreover, a recent survey has revealed recurrent losses and rapid evolution of the condensin II complex in insect species (King et al, 2019): among the genes encoding the non-SMC subunits of condensin II, cap-g2 has been lost most frequently during insect evolution. Our current results show that the mutant complex lacking CAP-G2 is able to support chenille-like chromosome assembly even at a lower concentration than the holocomplex.…”
Section: Evolutionary Implicationsmentioning
confidence: 99%