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Evidence of capacitation in the parasitoid wasp, Nasonia vitripennis, and its potential role in sex allocation

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posted on 2020-06-03, 08:52 authored by Alun RC Jones, Eamonn B Mallon

The allocation of resources to the production of one sex or another has been observed in a large variety of animals. Its theoretical basis allows accurate predictions of offspring sex ratios in many species, but the mechanisms by which sex allocation is controlled are poorly understood. Using previously published data, we investigated whether alternative splicing, combined with differential gene expression, was involved with sex allocation in the parasitoid wasp, Nasonia vitripennis . We found that sex allocation is not controlled by alternative splicing but changes in gene and transcript‐specific expression, which were identified to be involved with oviposition, were shown to be similar to those involved in sperm motility and capacitation. Genes involved in cholesterol efflux, a key component of capacitation, along with calcium transport, neurotransmission, trypsin, and MAPKinase activity were regulated in ovipositing wasps. The results show evidence for regulation of sperm motility and of capacitation in an insect which, in the context of the physiology of the N. vitripennis spermatheca, could be important for sex allocation.

Funding

Biotechnology and Biological Sciences Research Council

History

Citation

Jones, ARC, Mallon, EB. Evidence of capacitation in the parasitoid wasp, Nasonia vitripennis and its potential role in sex allocation. Ecol Evol. 2020; 00: 1– 9. https://doi.org/10.1002/ece3.6422

Version

  • VoR (Version of Record)

Published in

Ecology and Evolution

Publisher

Wiley

issn

2045-7758

eissn

2045-7758

Acceptance date

2020-05-03

Copyright date

2020

Notes

The 2015 and 2018 data can be found at NCBI Accession: GSE74241, GSE105796 respectively. All code can be found on figshre https://doi.org/10.25392/leicester.data.12102702.

Language

en

Publisher version

https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.6422

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