Published October 7, 2025
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Triploidy in parthenogenetic Chinese Helophorus aquila Angus et al., 2014
Authors/Creators
- 1. Sun Yat-sen University, Guangdong, China|Department of Life Sciences (Insects), The Natural History Museum, London, United Kingdom
- 2. Sun Yat-sen University, Guangdong, China
Description
Checking old unphotographed slides of chromosome preparations in the possession of R.B.A. revealed one slide labelled "frater ♀7g 6/6/13 ✓". The beetle with these data is a female paratype of H. aquila Angus et al., in the general collection of the Natural History Museum, London. One almost complete dividing nucleus was found, with 32 chromosomes, indicating a triploid nucleus with one chromosome lost in the course of preparation of the slide.
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Related works
- Cites
- Publication: 10.3897/CompCytogen.v9i1.4463 (DOI)
- Publication: 10.3897/CompCytogen.v14i1.47656 (DOI)
References
- Angus RB (1992) A chromosomal investigation of Helophorus brevipalpis Bedel (Coleoptera: Hydrophilidae) with triploid Spanish females a possible source of American parthenogenetic material. The Entomologist 111(1): 56–60.
- Angus RB, Angus EM, Jia F-l, Zhang Y (2015) Further karyosystematic studies of the Boreonectes griseostriatus (De Geer) group of sibling species (Coleoptera, Dytiscidae)–characterisation of B. emmerichi (Falkenström, 1936) and additional European data. Comparative Cytogenetics 9(1): 133–144. https://doi.org/10.3897/CompCytogen.v9i1.4463
- Angus RB, Jia FL, Chen ZN (2014) A review of the Helophorus frater-praenanus group of species, with description of a new species and additional faunal records of Helophorus Fabricius from China and Bhutan. (Coleoptera: Helophoridae). Koleopterologische Rundschau 84: 209–219.
- Angus RB, Jia F (2020) Triploidy in Chinese parthenogenetic Helophorus orientalis Motschulsky, 1860, further data on parthenogenetic Helophorus brevipalpis Bedel, 1881 and a brief discussion of parthenogenesis in Hydrophiloidea (Coleoptera). Comparative Cytogenetics 14(1): 1–10. https://doi.org/10.3897/CompCytogen.v14i1.47656