@Book{197254747X,
author="Brandt, Alexander
and Lavanchy, Guillaume
and M{\'e}rel, Vincent
and Soldini, Luca
and Massy, Morgane
and Dumas, Zo{\'e}
and Gaudichau, Emelyne
and Lab{\'e}dan, Marjorie
and Pasquier Genoud, Falon
and Bastardot, Marc
and Schwander, Tanja",
title="Hybridogenesis as an intermediate step between sexual reproduction and parthenogenesis in stick insects",
series="Proceedings of the National Academy of Sciences (PNAS)",
year="2026",
edition="[accepted author manuscript]",
publisher="2026",
address="No place, unknown, or undetermined; Rostock",
abstract="Many organisms reproduce through non-canonical modes such as parthenogenesis or hybridogenesis (clonal transmission of one parent's chromosomes), but whether these arise abruptly or stepwise from each other remains unclear. We address this in the stick-insect genus Bacillus , which harbors several hybrid lineages with diverse reproductive modes. From haplotype-resolved phylogenies of >500 wild-caught individuals, we infer a single, recent ({\~}8,000 years) origin of all hybrids. The ancestral hybrid reproduced via hybridogenesis, which subsequently diversified into parthenogenesis and, twice independently, into triploid lineages. Laboratory crosses recapitulate this trajectory, where each step facilitated the next. These findings reveal how a single genomic perturbation can act as a catalyst for evolutionary innovation, turning the loss of sex into a driver of diversification rather than a dead end.<eng>",
note="Alexander Brandt, Guillaume Lavanchy, Vincent M{\'e}rel, Luca Soldini, Morgane Massy, Zo{\'e} Dumas, Emelyne Gaudichau, Marjorie Lab{\'e}dan, Falon Pasquier Genoud, Marc Bastardot, Tanja Schwander",
issn="1091-6490",
doi="10.18453/rosdok_id00005578",
url="https://purl.uni-rostock.de/rosdok/id00005578",
url="https://doi.org/10.18453/rosdok_id00005578",
language="English"
}