Genetica

, Volume 130, Issue 3, pp 293–300 | Cite as

A chromosomal investigation of some British Cantharidae (Coleoptera)

Original Paper

Abstract

The karyotypes of 20 species of Cantharidae occurring in the British Isles are described and illustrated, 19 of which are hitherto unrecorded. These are Cantharis cryptica Ashe, Cantharis fusca Linnaeus, Cantharis lateralis Linnaeus, Cantharis livida Linnaeus, Cantharis nigra (Degeer), Cantharis nigricans (O. F. Müller), Cantharis pallida Goeze, Cantharis pellucida Fabricius, Cantharis rufa Linnaeus, Cantharis rustica Fallén, Cantharis thoracica (Olivier), Rhagonycha fulva (Scopoli), Rhagonycha lignosa (O. F. Müller), Rhagonycha limbata Thomson, Rhagonycha lutea (O. F. Müller), Rhagonycha testacea (Linnaeus), Silis ruficollis (Fabricius), Malthinus seriepunctatus Kiesenwetter, Malthodes dispar (Germar) and Malthodes minimus (Linnaeus). The main findings were as follows: (1) Cantharis, Rhagonycha and Silis have karyotypes of six pairs of autosomes plus sex chromosomes, which are X0 (male), XX (female). (2) Malthinus and Malthodes differ from the other genera in having only five pairs of autosomes. (3) The chromosome complement of Silis differs from those of the other genera studied in having a variable number of B-chromosomes in individuals from the same population. (4) The karyotypes of the Rhagonycha species show a degree of uniformity in the relative chromosome lengths, centromere positions and C-banding patterns. (5) The karyotypes of the Cantharis species are much more distinct from each other where these characteristics are concerned. (6) Maturation of the gonads takes place in the late larval stage. (7) The segregation of the X chromosome of Cantharis rufa during meiosis is pre-reductional.

Keywords

Coleoptera Cantharidae Chromosomes Karyotypes C-bands Sex chromosomes B-chromosomes 

References

  1. Angus RB (1982) Separation of two species standing as Helophorus aquaticus (L.) (Coleoptera, Hydrophilidae) by banded chromosome analysis. Syst Entomol 7:265–281Google Scholar
  2. Calder AA (1996) Cantharidae. http://www.deh.gov.au/cgi-bin/abrs/fauna/details.pl?pstrVol = ELATEROIDEA;pstrTaxa = 3701;pstrChecklistMode = 1Google Scholar
  3. Crowson RA (1955) The natural classification of the families of Coleoptera. Holywell Press Ltd., Oxford, pp 187Google Scholar
  4. de Gambardella LA, de Vaio ES (1978) Estudio morfologico, biologico y cariologico de Chauliognathus scriptus (Germ.) (Coleoptera, Cantharidae). Rev Biol del Uruguay 6:69–86Google Scholar
  5. Fitton MG (1976) The larvae of the British genera of Cantharidae (Coleoptera). J Ent (B) 44:243–254Google Scholar
  6. Machado V, Galian J, De Araujo AM, Valente VLS (2001) Cytogenetics of eight neotropical species of Chauliognathus (Henzt 1830): implications on the ancestral karyotype in Cantharidae (Coleoptera). Hereditas 134:121–124PubMedCrossRefGoogle Scholar
  7. Pope RD (1977) Kloet and Hincks, a check list of British beetles, 2nd edn. Part 3: Coleoptera and Strepsiptera. Royal entomological society handbooks for the identification of British insects 10(3):105Google Scholar
  8. Rożek M, Lachowska D, Petitpierre E, Holecová M (2004) C-bands on chromosomes of 32 beetle species (Coleoptera: Elateridae, Cantharidae, Oedemeridae, Cerambycidae, Anthicidae, Chrysomelidae, Attelabidae and Curculionidae). Hereditas 140:161–170PubMedCrossRefGoogle Scholar
  9. Shaarawi FA, Angus RB (1990) A chromosomal investigation of five European species of Anacaena Thomson (Coleoptera: Hydrophilidae). Entomol Scand 21:416–426Google Scholar
  10. Smith SG (1950) The cyto-taxonomy of Coleoptera. Can Entomol 82:58–68CrossRefGoogle Scholar
  11. Smith SG (1960) Chromosome numbers of Coleoptera II. Can J Genet Cytol 2:66–88Google Scholar
  12. Smith SG, Virkki N (1978) Animal cytogenetics (Insecta 5) Coleoptera. Gebruder Berntraeger, Berlin, Stuttgart, pp 366Google Scholar
  13. Sumner AT (2003) Chromosomes: organization and function. Blackwell, Oxford, pp 287Google Scholar
  14. Virkki N (1963) On the cytology of some neotropical cantharoids (Coleoptera). Ann Acad Sci Fenn Ser A IV Biol 65:1–18Google Scholar
  15. Virkki N (1978) Pre-reduction of the X chromosome in Lycidae (Coleoptera: Cantharoidea). Genetica 49:229–232CrossRefGoogle Scholar
  16. Yadav JS (1973) Chromosome number and sex-determining mechanism in fourteen species of Coleoptera. Curr Sci 42:514–515Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  1. 1.School of Biological Sciences, Royal HollowayUniversity of LondonEghamUK

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