2019
DOI: 10.1101/663112
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Parthenogenesis as a solution to hybrid sterility: the mechanistic basis of meiotic distortions in clonal and sterile hybrids

Abstract: Formation of species generally occurs in a continuum from potentially intermixing populations to independent entities isolated from other species by pre-and postzygotic barriers. Especially the establishment of hybrid sterility (HS) is a hallmark of speciation, which usually emerges at different rates between hybrid sexes. However, although HS is frequently observed, the underlying molecular mechanisms remain poorly understood. Here we report that speciation proceeds through a previously unnoticed stage at whi… Show more

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Cited by 12 publications
(42 citation statements)
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“…Hence, even if ectopic ExT pairings occur in cells of asexual females, the formation of proper bivalents would be unlikely and gametes would not be formed. Second, (Dedukh et al 2020) documented the occurrence of true COs in ExE and TxT bivalents in hybrid females (Fig. 1a) suggesting that hypothetical ExT bivalents would result in the exchange of large pieces of chromosomal arms, which was not observed (Majtánová et al 2016).…”
Section: Large-scale Stasis Vs Small-scale Dynamics Of Asexual Genomesmentioning
confidence: 97%
See 4 more Smart Citations
“…Hence, even if ectopic ExT pairings occur in cells of asexual females, the formation of proper bivalents would be unlikely and gametes would not be formed. Second, (Dedukh et al 2020) documented the occurrence of true COs in ExE and TxT bivalents in hybrid females (Fig. 1a) suggesting that hypothetical ExT bivalents would result in the exchange of large pieces of chromosomal arms, which was not observed (Majtánová et al 2016).…”
Section: Large-scale Stasis Vs Small-scale Dynamics Of Asexual Genomesmentioning
confidence: 97%
“…Interestingly, it is unclear how such conversions between orthologs may arise since organisms employing premeiotic endoreplication should rather form bivalents between sister copies of the duplicated homologs (Lutes et al 2010;Arai and Fujimoto 2013;Dedukh et al 2020) (Fig. 1a).…”
Section: Large-scale Stasis Vs Small-scale Dynamics Of Asexual Genomesmentioning
confidence: 99%
See 3 more Smart Citations