Spermatogenesis in haploid males of the jewel wasp Nasonia vitripennis

Males of hymenopteran insects, which include ants, bees and wasps, develop as haploids from unfertilized eggs. In order to accommodate their lack of homologous chromosome pairs, some hymenopterans such as the honeybee have been shown to produce haploid sperm through an abortive meiosis. We employed...

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Bibliographic Details
Published in:Scientific reports 2019-08, Vol.9 (1), p.12194-13, Article 12194
Main Authors: Ferree, Patrick M., Aldrich, John C., Jing, Xueyuan A., Norwood, Christopher T., Van Schaick, Mary R., Cheema, Manjinder S., Ausió, Juan, Gowen, Brent E.
Format: Article
Language:English
Subjects:
13/1
14/19
14/28
14/32
14/34
631/136
631/136/2434/1822
Animals
Centrioles
Chromosomes, Insect - metabolism
Eggs
Haploidy
Humanities and Social Sciences
Insects
Male
Males
Meiosis
Meiosis - physiology
multidisciplinary
Nasonia vitripennis
Science
Science (multidisciplinary)
Sperm
Spermatocytes
Spermatogenesis
Spermatogenesis - physiology
Wasps - metabolism
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Summary:Males of hymenopteran insects, which include ants, bees and wasps, develop as haploids from unfertilized eggs. In order to accommodate their lack of homologous chromosome pairs, some hymenopterans such as the honeybee have been shown to produce haploid sperm through an abortive meiosis. We employed microscopic approaches to visualize landmark aspects of spermatogenesis in the jewel wasp Nasonia vitripennis , a model for hymenopteran reproduction and development. Our work demonstrates that N . vitripennis , like other examined hymenopterans, exhibits characteristics indicative of an abortive meiosis, including slight enlargement of spermatocytes preceding meiotic initiation. However, we saw no evidence of cytoplasmic buds containing centrioles that are produced from the first abortive meiotic division, which occurs in the honeybee. In contrast to other previously studied hymenopterans, N . vitripennis males produce sperm in bundles that vary widely from 16 to over 200, thus reflecting a range of cellular divisions. Our results highlight interesting variations in spermatogenesis among the hymenopteran insects, and together with previous studies, they suggest a pattern of progression from meiosis to a more mitotic state in producing sperm.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-019-48332-9