Morphology of the male reproductive system and spermatozoa of Mahanarva fimbriolata (Stål, 1854) (Hemiptera: Cercopidae) with evidence of a spermatostyle in the sperm conjugation

Sodré, Rômulo Fagundes; Coelho, Luci Boa Nova; Rezende, Paulo Henrique; Costa, Dayvson Ayala; Dias, Glenda; Lino-Neto, José

doi:10.1016/j.micron.2024.103591

Cited by 3 publications

(2 citation statements)

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“…The remarkable structural and biochemical diversification of ejaculates is almost certainly attributable to the diversity of postcopulatory roles they contribute to in the FRT ( Dorus et al 2004 ; Higginson et al, 2012b ; McCullough et al, 2022 ; Pitnick, Hosken, et al, 2009 ; Pitnick et al, 2020 ; Ravi Ram & Wolfner, 2007 ). In this study, we characterized the proteomic composition and evolution of spermatostyles, which to date have received little attention beyond morphological examination ( Breland & Simmons, 1970 ; Chawanji et al, 2005 , 2006 ; Chevaillier, 1963 ; Chevaillier & Maillet, 1965 ; Dallai et al, 2019 , 2020 ; Folliot & Maillet, 1970 ; Giglio et al, 2024 ; Gómez & Maddison, 2020 ; Hayashi & Kamimura, 2002a , 2002b ; Maillet, 1959 ; Mercati et al, 2023 ; Roberston & Gibbs, 1937 ; Salazar et al, 2022 , 2023 ; Sodré et al, 2024 ). Although functional data are generally lacking, it has been assumed that the adaptive value of spermatostyles is the facilitation of cooperative sperm migration through the FRT ( Higginson & Pitnick, 2011 ; Immler, 2008 ; Pizzari & Foster, 2008 ).…”

Section: Discussionmentioning

confidence: 99%

“…whirligig beetles, although the structures were first described by Gilson (1884) in an investigation of ground beetles (where they were incorrectly referred to as “spermatophores”). Spermatostyles occur in several families of adephagan beetles (ground beetles, diving beetles, and kin; families Carabidae, Dytiscidae, Gyrinidae, and Haliplidae; Breland & Simmons, 1970 ; Dallai et al, 2019 , 2020 ; Giglio et al, 2024 ; Gómez & Maddison, 2020 ; Higginson et al, 2015 ; Higginson & Pitnick, 2011 ; Mercati et al, 2023 ; Salazar et al, 2022 , 2023 ) and auchenorrhynch true bugs (cicadas, planthoppers, and spittlebugs; families Aphro-phoridae, Cercopidae, Cicadidae, and Cicadellidae; Chawanji et al, 2005 , 2006 ; Chevaillier, 1963 ; Chevaillier & Maillet, 1965 ; Folliot & Maillet, 1970 ; Hayashi & Kamimura, 2002a , 2002b ; Maillet, 1959 ; Roberston & Gibbs, 1937 ; Sodré et al, 2024 ). Spermatostyles vary in their length, from 17 μm to 4.1 cm, the location, density, and organization of attached sperm, and their ultrastructural appearance (e.g., Giglio et al, 2024 ; Gómez & Maddison, 2020 ; Higginson & Pitnick, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

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Proteomic diversification of spermatostyles among six species of whirligig beetles

Gomez,

Dallai,

Sims‐West

et al. 2024

Molecular Reproduction Devel

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Seminal fluid protein composition is complex and commonly assumed to be rapidly divergent due to functional interactions with both sperm and the female reproductive tract (FRT), both of which evolve rapidly. In addition to sperm, seminal fluid may contain structures, such as mating plugs and spermatophores. Here, we investigate the evolutionary diversification of a lesser‐known ejaculate structure: the spermatostyle, which has independently arisen in several families of beetles and true bugs. We characterized the spermatostyle proteome, in addition to spermatostyle and FRT morphology, in six species of whirligig beetles (family Gyrinidae). Spermatostyles were enriched for proteolytic enzymes, and assays confirmed they possess proteolytic activity. Sperm‐leucylaminopeptidases (S‐LAPs) were particularly abundant, and their localization to spermatostyles was confirmed by immunohistochemistry. Although there was evidence for functional conservation of spermatostyle proteomes across species, phylogenetic regressions suggest evolutionary covariation between protein composition and the morphology of both spermatostyles and FRTs. We postulate that S‐LAPs (and other proteases) have evolved a novel structural role in spermatostyles and discuss spermatostyles as adaptations for delivering male‐derived materials to females.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Proteomic diversification of spermatostyles among six species of whirligig beetles

Gomez,

Dallai,

Sims‐West

et al. 2024

Molecular Reproduction Devel

View full text Add to dashboard Cite

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Male Reproductive Glands and Their Secretions in Insects

Hopkins,

Allen,

Avila

et al. 2024

Reference Module in Biomedical Sciences

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The number of testicular follicles and ovarioles in Cicadomorpha (Hemiptera: Auchenorrhyncha): Variability and evolutionary trends

KUZNETSOVA,

GOLUB

2024

Eur. J. Entomol.

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The hemipteran infraorder Cicadomorpha (cicadas, leafhoppers, treehoppers and spittlebugs) comprises more than 30,000 described extant species in 3,783 genera, 13 families and 3 superfamilies: Cicadoidea, Cercopoidea and Membracoidea. Here, we summarize and discuss data on the number of testicular follicles in 103 species belonging to 84 genera and 9 families of Cicadoidea (Tettigarctidae and Cicadidae), Cercopoidea (Aphrophoridae, Cercopidae and Ischnorhinidae) and Membracoidea (Aetalionidae, Cicadellidae, Membracidae and Myerslopiidae), as well as the number of ovarioles in 65 species belonging to 56 genera of the same families, except for Tettigarctidae, Aetalionidae, and Myerslopiidae, for which no such data were available. Almost 83% of the species and 81% of the genera studied belong to the family Cidadellidae. In general, the number of follicles in Cicadomorpha ranges from 1 to "about 100 or more" per testis, and the number of ovarioles from 3 to over 70-80 per ovary. The highest numbers are characteristic of Cicadoidea and Cercopoidea, with signifi cantly higher values in the former superfamily. In Membracoidea, both follicle and ovariole numbers vary within markedly narrower limits. Most taxa are dominated by testes each consisting of 6 follicles, and the ovaries each consisting of 6 ovarioles. These character states are considered ancestral for Cicadomorpha, and possibly for Auchenorrhyncha as a whole.

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Morphology of the male reproductive system and spermatozoa of Mahanarva fimbriolata (Stål, 1854) (Hemiptera: Cercopidae) with evidence of a spermatostyle in the sperm conjugation

Cited by 3 publications

References 44 publications

Proteomic diversification of spermatostyles among six species of whirligig beetles

Proteomic diversification of spermatostyles among six species of whirligig beetles

Male Reproductive Glands and Their Secretions in Insects

The number of testicular follicles and ovarioles in Cicadomorpha (Hemiptera: Auchenorrhyncha): Variability and evolutionary trends

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