ArticleMolecular biology and evolution2025
Accumulation of a Biparentally Inherited Neptune Transposable Element in Natural Killifish Hybrids (Fundulus diaphanus × F. heteroclitus).
Article in Molecular biology and evolution, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
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4 authors.
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Abstract
Transposable elements (TEs) are abundant selfish genetic elements that can mobilize in their host genome, causing DNA damage, mutations, and chromosome rearrangements. TE silencing is thus critical, and is initiated by maternally loaded piRNAs, leading to their repression. Consistently, paternally inherited TEs are derepressed in the progeny of Drosophila crosses involving a naive female. TEs have also been found to be derepressed in interspecific crosses, which is proposed to result from suboptimal interactions of piRNA pathway proteins. Fundulus heteroclitus and F. diaphanus hybridize in nature and produce viable and fertile offspring that sometimes reproduce asexually. We characterized the repetitive DNA content of these species and their asexually reproducing hybrids. TE load was slightly higher than expected in hybrids and associated with younger repeats. Two biparentally inherited active Neptune subfamilies showed a remarkable ∼3- to 4-fold accumulation in hybrids. These results are consistent with suboptimal piRNA pathway function, leading to active TE accumulation.
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