Abstract：
: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.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ferree PM,Aldrich JC,Jing XA,Norwood CT,Van Schaick MR,Cheema MS,Ausió J,Gowen BEdoi
10.1038/s41598-019-48332-9subject
Has Abstractpub_date
2019-08-21 00:00:00pages
12194issue
1issn
2045-2322pii
10.1038/s41598-019-48332-9journal_volume
9pub_type
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