A chromosomal analysis of eleven species of Gyrinidae (Coleoptera)
Karyotypes are presented for 10 species of Gyrinus Geoffroy, 1762: G. minutus Fabricius, 1798, G. caspius Ménétriés, 1832, G. paykulli Ochs, 1927, G. distinctus Aubé, 1836 var. fairmairei Régimbart, 1883, G. marinus Gyllenhal, 1808, G. natator (Linnaeus, 1758), G. opacus Sahlberg, 1819, G. substriat...
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ftpensoft:10.3897/CompCytogen.v10i1.7662 2023-05-15T16:29:22+02:00 A chromosomal analysis of eleven species of Gyrinidae (Coleoptera) Angus,Robert Holloway,Teresa 2016 text/html https://doi.org/10.3897/CompCytogen.v10i1.7662 https://compcytogen.pensoft.net/article/7662/ en eng Pensoft Publishers info:eu-repo/semantics/altIdentifier/eissn/1993-078X info:eu-repo/semantics/altIdentifier/pissn/1993-0771 info:eu-repo/semantics/openAccess Comparative Cytogenetics 10(1): 189-202 Coleoptera Gyrinidae Gyrinus Orectochilus chromosomes karyotypes C-banding Review Article 2016 ftpensoft https://doi.org/10.3897/CompCytogen.v10i1.7662 2022-03-01T12:32:16Z Karyotypes are presented for 10 species of Gyrinus Geoffroy, 1762: G. minutus Fabricius, 1798, G. caspius Ménétriés, 1832, G. paykulli Ochs, 1927, G. distinctus Aubé, 1836 var. fairmairei Régimbart, 1883, G. marinus Gyllenhal, 1808, G. natator (Linnaeus, 1758), G. opacus Sahlberg, 1819, G. substriatus Stephens, 1869, G. suffriani Scriba, 1855, G. 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. O. 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 G. opacus, nor between typical G. distinctus from France and G. distinctus var. fairmairei from Kuwait. Review Greenland Pensoft Publishers Greenland Comparative Cytogenetics 10 1 189 202 |
institution |
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Pensoft Publishers |
op_collection_id |
ftpensoft |
language |
English |
topic |
Coleoptera Gyrinidae Gyrinus Orectochilus chromosomes karyotypes C-banding |
spellingShingle |
Coleoptera Gyrinidae Gyrinus Orectochilus chromosomes karyotypes C-banding Angus,Robert Holloway,Teresa A chromosomal analysis of eleven species of Gyrinidae (Coleoptera) |
topic_facet |
Coleoptera Gyrinidae Gyrinus Orectochilus chromosomes karyotypes C-banding |
description |
Karyotypes are presented for 10 species of Gyrinus Geoffroy, 1762: G. minutus Fabricius, 1798, G. caspius Ménétriés, 1832, G. paykulli Ochs, 1927, G. distinctus Aubé, 1836 var. fairmairei Régimbart, 1883, G. marinus Gyllenhal, 1808, G. natator (Linnaeus, 1758), G. opacus Sahlberg, 1819, G. substriatus Stephens, 1869, G. suffriani Scriba, 1855, G. 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. O. 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 G. opacus, nor between typical G. distinctus from France and G. distinctus var. fairmairei from Kuwait. |
format |
Review |
author |
Angus,Robert Holloway,Teresa |
author_facet |
Angus,Robert Holloway,Teresa |
author_sort |
Angus,Robert |
title |
A chromosomal analysis of eleven species of Gyrinidae (Coleoptera) |
title_short |
A chromosomal analysis of eleven species of Gyrinidae (Coleoptera) |
title_full |
A chromosomal analysis of eleven species of Gyrinidae (Coleoptera) |
title_fullStr |
A chromosomal analysis of eleven species of Gyrinidae (Coleoptera) |
title_full_unstemmed |
A chromosomal analysis of eleven species of Gyrinidae (Coleoptera) |
title_sort |
chromosomal analysis of eleven species of gyrinidae (coleoptera) |
publisher |
Pensoft Publishers |
publishDate |
2016 |
url |
https://doi.org/10.3897/CompCytogen.v10i1.7662 https://compcytogen.pensoft.net/article/7662/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Comparative Cytogenetics 10(1): 189-202 |
op_relation |
info:eu-repo/semantics/altIdentifier/eissn/1993-078X info:eu-repo/semantics/altIdentifier/pissn/1993-0771 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3897/CompCytogen.v10i1.7662 |
container_title |
Comparative Cytogenetics |
container_volume |
10 |
container_issue |
1 |
container_start_page |
189 |
op_container_end_page |
202 |
_version_ |
1766019068346761216 |