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  A Z-linked sterility locus causes sexual abstinence in hybrid females and facilitates speciation in Spodoptera frugiperda

Kost, S., Heckel, D. G., Yoshido, A., Marec, F., & Groot, A. T. (2016). A Z-linked sterility locus causes sexual abstinence in hybrid females and facilitates speciation in Spodoptera frugiperda. Evolution: international journal of organic evolution, 70(6), 1418-1427. doi:10.1111/evo.12940.

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HEC334s1.zip (Supplementary material), 198KB
 
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 Creators:
Kost, Silvia1, Author           
Heckel, David G.1, Author           
Yoshido, Atsuo, Author
Marec, František, Author
Groot, Astrid T.1, Author           
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1Department of Entomology, Prof. D. G. Heckel, MPI for Chemical Ecology, Max Planck Society, ou_421895              

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 Abstract: In the fall armyworm, Spodoptera frugiperda (Lepidoptera, Noctuidae), two sympatric strains have been recognized that have been termed corn strain (C) and rice strain (R), referring to their most common host plants. Both strains are reproductively isolated via a distinct prezygotic barrier as well as via an intriguing postzygotic phenomenon: when R females have mated with C males, the resulting RC hybrid females exhibit dramatically reduced fertility independent of their mating partner. Here, we demonstrate that the reduced fertility is caused by the fact that these females refrain from mating, that is, females are behaviorally sterile. We identified a Z‐chromosomally linked sterility locus that is most likely incompatible with yet to be identified autosomal (or cytoplasmic) factors, leading to the observed sexual abstinence. Within‐chromosome mapping revealed the sterility locus to be located in an area of strongly reduced interstrain recombination.

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 Dates: 2016-04-192016-05-302016
 Publication Status: Published in print
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 Identifiers: Other: HEC334
DOI: 10.1111/evo.12940
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Title: Evolution: international journal of organic evolution
  Abbreviation : Evolution
Source Genre: Journal
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Publ. Info: Wiley
Pages: - Volume / Issue: 70 (6) Sequence Number: - Start / End Page: 1418 - 1427 Identifier: ISSN: 0014-3820
CoNE: https://pure.mpg.de/cone/journals/resource/991042730870254