ArticleScientific reports2019
Formation and development of the male copulatory organ in the spider Parasteatoda tepidariorum involves a metamorphosis-like process.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
10 citing papers in PubMed, 29 citations in OpenAlex.
- Single-cell sequencing reveals potential novel insights into appendage-patterning and joint-development in a spider.Developmental dynamics : an official publication of the American Association of Anatomists · 2026Article
- Taxonomic reassessment and rejection of the spider family Fonteferreidae Wunderlich, 2023 (Araneae).ZooKeys · 2026Article
- High disparity in repellent gland anatomy across major lineages of stick and leaf insects (Insecta: Phasmatodea).BMC zoology · 2024Article
- A biosemiotic interpretation of certain genital morphological structures in the spiders Dysdera erythrina and Dysdera crocata (Araneae: Dysderidae).Theory in biosciences = Theorie in den Biowissenschaften · 2023Article
- Resolving between novelty and homology in the rapidly evolving phallus of Drosophila.Journal of experimental zoology. Part B, Molecular and developmental evolution · 2023Article
- Female mating rates and their fitness consequences in the common house spiderEcology and evolution · 2022Article
- Modest sexual size dimorphism and allometric growth: a study based on growth and gonad development in the wolf spider Pardosa pseudoannulata (Araneae: Lycosidae).Biology open · 2021Article
- A chelicerate Wnt gene expression atlas: novel insights into the complexity of arthropod Wnt-patterning.EvoDevo · 2021Article
- Sex differences in spiders: from phenotype to genomics.Development genes and evolution · 2020Review
- The innervation of the male copulatory organ of spiders (Araneae) - a comparative analysis.Frontiers in zoology · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Spiders have evolved a unique male copulatory organ, the pedipalp bulb. The morphology of the bulb is species specific and plays an important role in species recognition and prezygotic reproductive isolation. Despite its importance for spider biodiversity, the mechanisms that control bulb development are virtually unknown. We have used confocal laser scanning microscopy (CLSM) and diffusible iodine-based contrast-enhanced micro computed tomography (dice-µCT) to study bulb development in the spider Parasteatoda tepidariorum. These imaging technologies enabled us to study bulb development in situ, without the use of destructive procedures for the first time. We show here that the inflated pedipalp tip in the subadult stage is filled with haemolymph that rapidly coagulates. Coagulation indicates histolytic processes that disintegrate tibia and tarsus, similar to histolytic processes during metamorphosis in holometabolous insects. The coagulated material contains cell inclusions that likely represent the cell source for the re-establishment of tarsus and tibia after histolysis, comparable to the histoblasts in insect metamorphosis. The shape of the coagulated mass prefigures the shape of the adult tarsus (cymbium) like a blueprint for the histoblasts. This suggests a unique role for controlled coagulation after histolysis in the metamorphosis-like morphogenesis of the male pedipalp.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.