Blog
About

2
views
0
recommends
+1 Recommend
2 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      A chromosomal analysis of eleven species of Gyrinidae (Coleoptera)

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Abstract

          Karyotypes are presented for 10 species of Gyrinus Geoffroy, 1762: Gyrinus minutus Fabricius, 1798, Gyrinus caspius Ménétriés, 1832, Gyrinus paykulli Ochs, 1927, Gyrinus distinctus Aubé, 1836 var. fairmairei Régimbart, 1883, Gyrinus marinus Gyllenhal, 1808, Gyrinus natator (Linnaeus, 1758), Gyrinus opacus Sahlberg, 1819, Gyrinus substriatus Stephens, 1869, Gyrinus suffriani Scriba, 1855, Gyrinus urinator Illiger, 1807 and for Orectochilus villosus (Müller, 1776) ( Coleoptera : Gyrinidae ). The 10 Gyrinus species have karyotypes comprising 13 pairs of autosomes plus sex chromosomes which are X0 (♂), XX (♀), with the X chromosomes the longest in the nucleus. Orectochilus villosus has 16 pairs of autosomes plus X0, XX sex chromosomes. The data obtained by Saxod and Tetart (1967) and Tetart and Saxod (1968) for five of the Gyrinus species are compared with our results. Saxod and Tetart considered the X chromosome to be the smallest in the nucleus in all cases, and this is considered to result from confusion arising from uneven condensation of some of the chromosomes. Small differences between the chromosomes of different Gyrinus species have been detected, but not between Greenland and Swedish populations of Gyrinus opacus , nor between typical Gyrinus distinctus from France and Gyrinus distinctus var. fairmairei from Kuwait.

          Related collections

          Most cited references 1

          • Record: found
          • Abstract: not found
          • Article: not found

          An acetic acid dissociation, air-drying technique for insect chromosomes, with aceto-lactic orcein staining.

           R Crozier (1968)
            Bookmark

            Author and article information

            Journal
            Comp Cytogenet
            Comp Cytogenet
            CompCytogen
            Comparative Cytogenetics
            Pensoft Publishers
            1993-0771
            1993-078X
            2016
            21 March 2016
            : 10
            : 1
            : 189-202
            Affiliations
            [1 ]Division of Life Sciences (Insects), The Natural History Museum, Cromwell Road, London SW7 5BD, UK
            [2 ]School of Biological Sciences, Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, UK
            Author notes
            Corresponding author: Robert B. Angus ( r.angus@ 123456royalholloway.ac.uk )

            Academic editor: D. Lachowska

            Article
            10.3897/CompCytogen.v10i1.7662
            4856935
            27186347
            Robert B. Angus, Teresa C. Holloway

            This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

            Categories
            Review Articles

            Comments

            Comment on this article